... Title : ABRASIVE WEAR RESISTANCE OF POLYMERS USED IN ULTRASONIC FLAW INSPECTION. Corporate Author : ...

... Accession Number : AD0682112. Title : ABRASIVE WEAR RESISTANCE OF CONSTRUCTIONAL MATERIALS AND MACHINE PARTS,. ...

... Title : The Problem of the Dependence of Wear Resistance of Metals during Abrasive Wear on Their Physicomechanical Properties,. ...

... Accession Number : AD0749769. Title : The Abrasive Wear Resistance of Vacuum-Condensed Coatings,. Corporate Author ...

... Accession Number : AD0724985. Title : Resistance to Abrasive Wear of Chromium Alloys with Additions of Carbide-Forming Elements,. ...

... Title : RESEARCH ON THE ABRASIVE WEAR RESISTANCE OF MANGANESE CAST IRON INOCULATED WITH CERIUM, USING THE Kh4-B ...

... Title : ABRASIVE WEAR RESISTANCE OF STRUCTURAL STEELS DEPENDING ON THE HEAT-MECHANICAL TREATMENT (HIGH ...

The article examines the dependence of wear resistance of metals during abrasive wear on the basic physicomechanical parameters. The dependence of wear resistance and critical velocity on the same parameters during friction of metals on an abrasive ...

... Title : QUICK AND SIMPLE TEST FOR ABRASIVE WEAR RESISTANCE AND ITS PRACTICAL USE,. Corporate Author : ...

... Accession Number : AD0720379. Title : The Mechanism of the Variation in the Abrasive Wear Resistance of G13L Steel After Hardening,. ...

... Accession Number : ADD201218. Title : Corrosion-Resistant and Abrasive Wear-Resistant Composite Material for Centrifugally Cast Linings,. ...

... Effect of Aging on the Abrasion Behavior of ... characteristics and data fields:, abrasions, aging data ... sizes, wear rates, wear resistances testing and test ...

General theories of abrasive wear are reviewed, and wear is related to abrasive size, shape, hardness and degradation tendency. Treatment of matrix effects includes the roles of matrix microhardness, subsurface deformation and retained austenite on abrasion resistance. ...

... Title : The Effect of Abrasion Resistance and Thermal Properties of the Cemented Carbide Cutting Tool Grade on the Flank Wear Characteristics. ...

... Title : The Influence of Particle Properties on the Erosive Wear of Sintered ... that their wear resistance depends on the nature of the abrasive particles. ...

... Title : WEAR RESISTANCE OF HIGH-CHROMIUM STEELS IN AN AIR-ABRASIVE MEDIUM AT HIGH TEMPERATURES,. ...

... The epoxy compounds were more resistant to abrasion by sand blasting than the other compounds. The maximum wear ...

... Wear resistance of Fiberglass Reinforced Polyester surfaces are usually considered to be somewhat less than that of melamine surfaced laminates. ...

... ABSTRACT A standard off-the-shelf Taber Abraser instrument is used to quantify the abrasive wear resistance of high-density polyethylene jackets ...

... Accession Number : ADD138359. Title : Wear Resistance of Steels Under Wet-Abrasive Erosion Conditions,. Descriptive Note : Journal Article,. ...

Results show that increased deformation in Duralumin during age hardening and after annealing increases the wear resistance to flowing abrasive particles. (R.V.J.)

... Accession Number : ADD150868. Title : Abrasive Wear Resistance of High-Carbon Chrome-Nickel Steel. Descriptive Note : Journal article,. ...

... from federally funded research, testing and training ... for Research Development Test and Evaluation ... ON THE ABRASION WEAR RESISTANCE OF ...

... Abstract : Mild alloy and stainless steels are compared regarding wear abrasion and corrosion resistance for tools and comminution devices. ...

... Title : An Improved Multipurpose Abrasion Tester and Its Application for the Evaluation of the Wear Resistance of Textiles. ...

The dry reciprocating wear characteristics of two abrasion-resistant steels, C1095 and 15B37H, against an abrasive material were studied. Results showed that abrasive wear and surface fatigue were the primary wear mechanisms. The wear failure of the ...

This work provides readers with practical advice on the selection of wear resistant materials for specific engineering purposes. Contents include: general review of wear; nature of wear; fretting; three body abrasion; gouging wear; low stress abrasion; ...

A plain carbon steel was overlayed with a wear-resistant hardfacing alloy by manual arc welding. Low stress abrasive wear tests were conducted with an ASTM rubber wheel abrasion tester using crushed silica and as the abrasive medium. The wear rate decreased with sliding ...

... Title : Influence of a Corrosive-Abrasive Medium on the Wear Resistance of 12Kh18N10T Steel with Surface Hardening,. ...

... Abstract : Laboratory testing procedures used to evaluate ... for their resistance to adhesive wear and dry ... The abrasion test described utilizes a gravity ...

... wear resistances parameter values relevant to the data:, volume fractions testing and test conditions:, abrasion tests, abrasive wear tests, sem, three ...

... The wear and abrasion resistance of various plastics used for various applications (automotive brake linings, pipe linings, gun barrel surfaces ...

... from federally funded research, testing and training ... of simultaneous action of abrasion and chemical wear ... in a laboratory test, predict performance ...

... COMPARISON OF WARP AND FILLING DIRECTION ABRASION RESULTS ... inserted into a hole drilled into the ... was not possible to drill beyond this ...

The effect of composition on the wear resistance of plastics was studied. Wear was related qualitatively to friction, strength, and ductility. Two types of wear were analyzed: ordinary wear due to repeated surface deformation, and abrasive wear due to ...

The book deals with theoretical and applied problems of the wear resistance of materials and machine parts. Main attention is devoted to abrasive wear which shortens the service life of agricultural, mining, construction, and other machines and industrial...

... from federally funded research, testing and training ... agencies for Research Development Test and Evaluation ... tear strength, and abrasion resistance ...

This article deals with the selection of materials for forming wear resistant layers within agricultural machine parts wear. We can achieve required hardness, wear resistance and life extension of agricultural machine parts and tools by the selection of a suitable material and surfacing ...

A systematic study of abrasive wear resistance of Fe/Cr/Mn based alloys has been carried out using a two body pin-on-disc wear machine. Abrasives used were silicon carbide, alumina and quartz. The objective of this study was to evaluate the abrasive ...

... from federally funded research, testing and training ... for Research Development Test and Evaluation ... better than proprietary abrasion-resistant alloys ...

... from federally funded research, testing and training ... agencies for Research Development Test and Evaluation ... two body pin-on-disc abrasion tests. ...

... from federally funded research, testing and training ... showed some detectable abrasion by five ... WEAR RESISTANCE, TEST AND EVALUATION ...

In the progress report for 1977-1979, an extensive literature survey was completed in the areas of abrasive wear mechanisms, wear testing and microstructural effects on abrasive wear. Definitions of the various abrasive wear processes were clarified. A ...

Hard and super-hard materials have very good abrasive wear resistance. However, in many severe wear environments that make use of these materials, impact is a significant component of that environment. Consequently, the behavior of many of these hard materials in impact-wear conditions need to ...

The friction and abrasive wear behaviour of an Al-Si1MgMn aluminium alloy reinforced with 10, 15 and 30 vol.% of alumina fibers has been evaluated. The influence of fiber content, matrix hardness, applied load as well as the hardness and size of the abrasive grits was investigated. The tests were performed with a pin-on-drum two-body ...

The research program has aimed at establishing quantitative relationships between microstructural variables and abrasion resistance of highly alloyed materials including high Cr-Mo white cast irons and Co-base alloys. Low-stress abrasion resistance has be...

... Accession Number : AD0747078. Title : The Influence of Carbon Content and Structural State on the Abrasive Wear Resistance of Iron Alloys,. ...

... Descriptive Note : Journal article,. Corporate Author : ZHEJIANG UNIV HANGZHOU (CHINA) DEPT OF MATERIALS SCIENCE AND ENGINEERING. ...

... different methods. This difference was confirmed by abrasive wear resistance measurements. UNCLASSIFIED SECURffY ...

... from federally funded research, testing and training ... for Research Development Test and Evaluation ... spray method for blast abrasion, especially for ...

... from federally funded research, testing and training ... agencies for Research Development Test and Evaluation ... room temperature in abrasion and dry ...

... federally funded research, testing and training ... COEFFICIENTS, CAPILLARITY, WEAR RESISTANCE ... TENSILE STRENGTH, ABRASION, TEST AND ...

Research in the first nine months of this project has centered in developing low-stress and gouging wear test techniques. Tests in alloy white irons have indicated that microstructure plays a strong role in establishing a materials wear resistance. Various mechanical parameters, such as fracture toughness or rolling fatigue ...

... federally funded research, testing and training ... for Research Development Test and Evaluation ... wear resistance data, abrasion tests, quenchings. ...

... from federally funded research, testing and training ... and realization of model wear test systems closely ... mechanism on the abrasion resistance of ...

Drill string hardfacings are composites of steel and tungsten carbide applied by welding techniques. This paper discusses the important variables involved and gives experimental results for casing wear and abrasive wear resistance.

Aug 3, 2009 ... The essence of this proposed activity is to develop a multi-use coating system - a highly wear resistant coating surface for use in the ...

... from federally funded research, testing and training ... and wear on a test machine which is ... Tanks (tracked vehicles), Wear, Abrasion resistance, Field ...

... of Carbide-Containing Aluminum and Titanium Alloy Surfaces,. ... carbide onto the surface of 5052 and Ti ... The wear resistance of aluminum alloys by 3 ...

This bibliography contains citations concerning theoretical, experimental, and practical considerations of abrasive wear of various materials, types of surfaces, tools, machinery, equipment, etc. Wear mechanisms, wear resistance, wear rates, and wear ...

This bibliography contains citations concerning theoretical, experimental, and practical considerations of abrasive wear of various materials, types of surfaces, tools, machinery, equipment, etc. Wear mechanisms, wear resistance, wear rates, and wear ...

A systematic study of abrasive wear resistance of Fe/Cr/Mn based alloys has been carried out using a two body pin-on-disc wear machine. Abrasives used were silicon carbide, alumina and quartz. The objective of this study was to evaluate the abrasive ...

Investigations on the wear of cotton fabrics were conducted by the U.S. Army Natick Laboratories. It was found that the theories of 'adhesive' and 'abrasive' wear, originally developed for metals, when applied to textile wear problems, provide new insight...

A systematic study of abrasive wear resistance of Fe/Cr/Mn experimental steels has been carried out in two-body pin-on-disc abrasion tests. Silicon carbide, alumina, and quartz were used as abrasives. The relationships between microstructures, mechanical ...

This study examines the abrasive wear behavior of two iron-base hardfacing materials with different combinations of carbon and chromium after deposition on a steel substrate. Effects of applied load and sliding distance on the wear behavior of the specimens were studied. Operating material removal mechanisms also were analyzed through ...

... Title : The Abrasive Wear of Borosilicate Glass. Descriptive Note : Journal article,. ... Abstract : The abrasive wear of borosilicate glass was studied. ...

The abrasion resistance of fabrics may be evaluated by several laboratory instruments, but those using a grit or sand abradant have been the most reliable for predicting field wear from laboratory data. These abraders impart a wear action referred to as '...

Research has shown that during operation of a number of domestic engines a major portion of the wear is caused by abrasive particles which enter the engine by various routes: i.e. cylinder wear during operation is primarily abrasive in nature, not corrosi...

Austempering of ductile irons has led to a new class of irons, Austempered Ductile Irons (ADIs), with improved mechanical strength and fracture toughness lacking in gray cast irons. Laboratory wear tests have been used to evaluate the abrasive and impact-abrasive wear behavior of a suite of ADIs. The use of ...

Hardness and wear tests were made to determine the effect of hardening by quenching and tempering, alloying, precipitation hardening, carbides, and increasing the carbon content, on the wear resistance of various steels, and to relate it to Vickers hardne...

In the progress report for 1977-1979, an extensive literature survey was completed in the areas of abrasive wear mechanisms, wear testing and microstructural effects on abrasive wear. Definitions of the various abrasive wear processes were clarified. A ...

This monograph gives a general classification of the various types of wear, including abrasive wear; it describes the principles and systems of laboratory tests for abrasive wear, the regularities of this form of wear under various conditions - during fri...

Direct methods are argued to be advantageous for determining the wear resistance of various materials. A methodology and experimental facilities are proposed for testing steels and surfacing alloys for wear resistance, a simple versatile method for fabricating surface-hardened test specimens is described, and ...

... An EPDM/pale crepe blended vulcanizate had significantly improved resistance to abrasion and crack growth when compared to a vulcanizate ...

... from federally funded research, testing and training ... using the dry sand/rubber wheel test. ... and sulfide inclusion shape on abrasion resistance are ...

... from federally funded research, testing and training ... agencies for Research Development Test and Evaluation ... growth, and poor abrasion resistance. ...

Correlation between service test wear ratings and laboratory test data obtained at room temperature for tear strength, resistance to crack growth, and abrasion resistance, as previously reported by the Research Directorate of this Command, has been confir...

An investigation of two-body abrasive wear utilizing a pin specimen on a rotating SiC particle abrasive paper test device is described. The test materials were 7075 aluminum and 4340 steel which were thermally treated to attain a range of hardness, fracture toughness and yield strength values. Wear ...

The abrasive wear properties of stir-cast A356 aluminum alloy-5 vol pct fly ash composite were tested against hard SiC{sub p} abrasive paper and compared to those of the A356 base alloy. The results indicate that the abrasive wear resistance of aluminum-fly ash composite is ...

A literature review was made. In spite of similarities between abrasive wear and solid particle erosion, weld overlay hard facing alloys that exhibit high abrasion resistance may not necessarily have good erosion resistance. The performance of weld overla...

The use of wear-resistant lining materials in coal preparation and coal handling plants to reduce the abrasion caused by wet coal is discussed. Various types of material such as ceramics, polyethylene, polyurethane and epoxies are considered and the ways in which they may be applied are described.

High-chromium white iron alloys are commonly used for wear resistant applications in the mining and minerals industry. The influence of the microstructure of the high-chromium white irons on the abrasion resistance has been studied extensively, as a recent review has highlighted. Previous research has recognized ...

Laboratory wear testing was conducted by the Bureau of Mines on a variety of typical wear-resistant alloys used in mining and mineral-processing equipment to estab lish their relative spalling and abrasion resistance. Test specimens in the form of 75-mm-d...

The abrasive-wear resistance of austenitic Mn cast irons MCh4Ts, MCh6Ts, MCh10Ts, and MCh12Ts containing different Mn contents, i.e. 4.0-11.0 percent, and modified with 0.012-0.110 percent Ce was studied. The highest wear resistance was shown by MCh4Ts (c...

... resistances, weight loss, weight loss data testing and test conditions:, erosion tests, impact abrasion tests (iat), sem, sliding wear tests, wear tests. ...

A series of alloy white irons and Co-base superalloys are being tested for low-stress abrasion resistance in a rubber-wheel abrasion test (RWAT) and for gouging wear resistance in a grinding wheel test (GWAT). The objective of the tests is to establish ge...

Correlation of the microstructural features of alloy cast irons and Co-base alloys to their wear resistance under room temperature low-stress and high-stress (gouging) abrasion is discussed. Low-stress abrasion resistance is determined on a dry-sand rubbe...

Translated from Zavod. Lab.; 38: No. 12, 1515-1518(Dec 1972). Alundum, silicon carbide, and boron carbide abrasive papers were used in the tests at pressures on the sample of 200 to 500 g. Results show that the method of abrasive wear testing of materials by rubbing against fastened abrasive particles may ...

Wear resistance of a commercial steel and titanium-niobium high-speed steels with a regulated carbide phase was evaluated by employing a micro-scale abrasive wear test with alumina particles. The worn volumes and corresponding wear coefficients were the lowest for the new non-ledeburitic grades ...

The hardness and wear resistance during sliding and abrasive friction of 80S2 (0.83% C, 1.66% Si) and U8 (0.83% C) steels subjected to the isothermal ? ? ? decomposition in the temperature range 330-650�C and additional 5-min annealing at 650�C are compared. The optimum decomposition temperature is found to be 550�C. At this ...

A systematic study of abrasive wear resistance of Fe/Cr/Mn experimental steels has been carried out in two-body pin-on-disc abrasion tests. Silicon carbide, alumina, and quartz were used as abrasives. The relationships between microstructures, mechanical properties, and ...

(U)Specimens of steel and 30Kh15M3 cast iron were subjected (after different heat treatments) to abrasive wear under industrial conditions of refractory-power compaction to establish the effect of structure on wear resistance. (Author)

Correlation of the microstructural features of alloy cast irons and Co-base alloys to their wear resistance under room temperature low-stress and high-stress (gouging) abrasion is discussed. Low-stress abrasion resistance is determined on a dry-sand rubber wheel device, whereas high-stress ...

Durafrax wear-resistant alumina tiles were used in wash boxes and chutes. These liners were much more resistant to abrasion than the special steels previously used and greatly reduced maintenance costs and lost production. (LTN)

It is well known that abrasive wear resistance is not strictly a materials property, but also depends upon the specific conditions of the wear environment. Nonetheless, characteristics of the ceramic microstructure do influence its hardness and fracture toughness and must, therefore, play an active role in ...

This book focuses on the abrasion and corrosion effects of different slurries - primarily coal - on pipelines and pumping equipment. They review wear and corrosion resistant materials and detail a wide variety of tests to measure slurry effects.

... Abstract : Twenty materials consisting of various fabrics and tapes (polyester, teflon, nylon, dacron), fiberglass laminate (epoxy, polyester, phenolic ...

... 304) materials related terms: abrasive wear, chromium addition, corrosion resistance, delta ferrite, elongation, manganese addition, nickel addition ...

... from federally funded research, testing and training ... for Research Development Test and Evaluation ... determined by wet rubber wheel abrasion tests. ...

The objective of this research is to correlate abrasive wear with microstructure in a series of alloy white irons and a series of Co-base powder metallurgy (PM) alloys. Low-stress abrasion resistance has been found to increase in a general way with hardne...

Low-stress and gouging abrasive wear was studied with respect to microstructure in a series of alloy white irons and Co-base powder metallurgy (PM) alloys. Tests have shown that low-stress abrasion resistance increases in a general way with hardness, wher...

Contents: Peculiarities of a micro-impact load in cavitation-abrasive action; Cavitation and cavitation-abrasive wear in the flow around a rectangular projection by a hydroabrasive current; Structure and properties of cavitation-resistant steel 30Kh10G10;...

The report documents laboratory investigations undertaken to develop high performance concrete (HPC) for precast and pre-stressed bridge deck components that would reduce the life-cycle cost of bridges by improving the studded tire wear (abrasion) resista...

The study of the application of free filamentary composites in ''pile''-like structures and linings is aimed at cost effective alternatives to the life limiting abrasive and galling wear experienced in solid member flow systems and system elements. The ba...

This report describes research aimed at establishing quantitative relationships between microstructure and wear resistance of highly alloyed materials, including high-Cr white irons and experimental Co-base and Ni-base powder metallurgy (PM) alloys now used or potentially to be used in coal mining, handling, and gasification. The specific types of ...

A series of alloy white irons and Co-base superalloys are being tested for low-stress abrasion resistance in a rubber-wheel abrasion test (RWAT) and for gouging wear resistance in a grinding wheel test (GWAT). The objective of the tests is to establish general relations for the improvement of ...

Results of cermet wear-resistance investigated by aeroabrasive flow are presented. An interrelation is shown of wear-resistance with the angle of attack on the sample surface by aeroabrasive flow. It is established that the intensity of wearing of cermets belonging to the same system is determined by chemical composition and ...

Hot-pressed silicon carbide, containing aluminum, boron, and carbon additives (ABC-SiC), was subjected to three-body and two-body wear testing using diamond abrasives over a range of sizes. In general, the wear resistance of ABC-SiC, with suitable heat treatment, was superior to that of commercial SiC.

Low-stress and gouging abrasive wear was studied with respect to microstructure in a series of alloy white irons and Co-base powder metallurgy (PM) alloys. Tests have shown that low-stress abrasion resistance increases in a general way with hardness, whereas gouging wear ...

A simple physically-based model for the abrasive wear of composite materials is presented based on the mechanics and mechanisms associated with sliding wear in soft (ductile) matrix composites containing hard (brittle) reinforcement particles. The model is based on the assumption that any portion of the reinforcement that is removed as ...

Nanostructured WC-17Co coatings have been prepared by means of High Velocity Oxy-fuel (HVOF) technique. The wear resistance at the elevated temperature (500�C) of nanostructured coatings was compared using GCr15 steel as counterpart in sliding wear tests. The results show that when at the temperature of 500�C, the ...

The authors have developed a simple and compact rig for studying the relative wear resistance of materials subjected to mechanical abrasion and friction. The rig has an electronic control system. It was used to test the relative wear resistance of a wide range of superhard and brittle materials ...

... ABRASIVE WEAR OF MATERIALS IN A BLAST FURNACE UNDER ACTUAL WORKING CONDITIONS by ... 09.TI1rLE ABRASIVE WEAR OF ...

The research program has aimed at establishing quantitative relationships between microstructural variables and abrasion resistance of highly alloyed materials including high Cr-Mo white cast irons and Co-base alloys. Low-stress abrasion resistance has been quantified using a rubber-wheel ...

The abrasive environments in most mines and mineral processing plants cause equipment to wear rapidly. The Bureau of Mines is conducting research to enhance the wear resistance of iron-base alloys. The report describes the results of investigations on two...

Progress has been made in understanding the mechanisms of carbide removal during abrasion by quartz abrasive. In situ SEM scratch tests have demonstrated that carbide fracture is the controlling process in quartz abrasion of white cast irons, suggesting that carbide toughness is a critical parameter in controlling ...

... ABRASION RESISTANT TREATMENTS FOR DACRON WEBBINGS ... ABRASION RESISTANT TREATMENTS FOR DACRON WEBBINGS ...

Superior abrasive wear resistance, combined with relatively low production costs, makes high Cr white cast irons (WCIs) particularly attractive for applications in the grinding, milling, and pumping apparatus used to process hard materials. Hypoeutectic, eutectic, and hypereutectic cast iron compositions, containing either 15 or 26 wt ...

Superior abrasive wear resistance, combined with relatively low production costs, makes high Cr white cast irons (WCIs) particularly attractive for applications in the grinding, milling, and pumping apparatus used to process hard materials. Hypoeutectic, eutectic, and hypereutectic cast iron compositions, containing either 15 or 26 wt ...

Wear resistance parameters were evaluated for 5 materials used for masticatory teeth filling. The study was carried out on an Uism-1 device for evaluation of abrasion resistance of dental materials by the friction method during circular movement of a premolar (removed for orthodontic indications) along the surface ...

Experimental two-body abrasion test equipment was developed to study the effects of temperature and liquid environments on abrasion. The effect of various liquids was determined for AISI 1018 Steel and 1100 Al. The effect of temperature on abrasion was determined for 1100 Al and Cu. An explanation based on adiabatic shear observed in ...

A report is made on laboratory tests to evaluate the erosion resistance of protective coatings for steel pipes. Erosion resistance is defined as the resistance to the wearing effect produced by abrasive particles such as would be encountered in steel pipe...

... only abrasive but also corrosion wear has been established [1-5]. ... Since abrasive wear is taken as the main mechanism of wear, ...

Wear-resistant hard-alloy coatings (facings) of high-carbon iron-based alloys, with a composition close to that of tool steels, are used to increase the abrasive-wear resistance of working friction surfaces of products. The authors aim here is to study the mechanical properties of the deposited metal after different technological ...

Metallographical (optical, TEM, SEM), spectroscopic, abrasive wear resistance and microhardness investigations of Fe/Cr/Mn/C steels heat treated by a continuous CO sub 2 laser are described. Laser hardening resulted in wear resistance of 1.4 to 1.6 times ...

... Accession Number : AD0163612. Title : Abrasion Tester and Method of Testing Abrasion Resistance of Flexible Sheet Material. ...

Present work examines tool steels abrasion wear resistance and the abrasion mechanisms which are one main contributor to failure of tooling in metal forming industry. Tooling used in cutting and metal forming processes without lubrication fails due to this type of wear. In the workshop and ...

... abrasive are presented; and the capability of the grain geometry parameters to ... Subject Categories : SOLVENTS, CLEANERS AND ABRASIVES. ...

... Title : STUDIES ON ABRASIVE WEAR OF MONOLITHIC SILICON NITRIDE AND A SILICON CARBIDE WHISKER-REINFORCED SILICON ...

... Accession Number : ADD139343. Title : On the Abrasive Wear of AISI 4340 Steel,. Descriptive Note : Conference Paper,. ...

... IN A RUBBER-WHEEL ABRASION TEST (RWAT) AND ... IN A GRINDING WHEEL TEST (GWAT ... WEAR TESTING ON THE WHITE IRONS HAS BEEN ...

... The deformation studies included abrasive wear, elastic strain, and plas- ... Major results are as follows: 1. Abrasive Wear ...

... Title : Comparison of the Microstructures and Abrasive Wear Properties of Stellite Hardfacing Alloys Deposited by Arc Welding and Laser Cladding,. ...

... Accession Number : AD0193871. Title : ABRASION AND WEAR STUDIES BY MEANS OF RADIOACTIVE ISOTOPES. Corporate Author : ...

Metal matrix composites containing a high volume fraction of carbide, nitride, boride, and/or oxide particles are frequently the materials of choice for applications which require high wear resistance. It is the very hard second phase particles which imbue the metal matrix composite with its superior wear ...

The abrasive wear of brittle materials, while not a true property of materials, is generally modeled as an inverse function of both the bulk hardness and fracture toughness. According to these models, an increase in the hardness and/or fracture toughness of a material will therefore enhance its wear resistance. In ...

This paper describes the results of a five-year investigation of sand abrasion phenomena in conventional electrical submergible pumps (ESP). The investigation includes a review of the available literature on two body and three body wear processes in the presence of corrosive fluids, and the development of laboratory test methods from which baseline ...

In the ninth quarter, investigations in steel matrix composites focused on characterization of abrasive wear and fracture test coupons in order to gain a better understanding of the material attributes contributing to the observed behavior in each test. Both the wear and fracture work found that the performance of the carbide cermet ...

This book presents the papers given at a conference on materials testing to determine wear resistance. Topics considered at the conference included the wear of metals in a magnetic field, ceramics in advanced heat engine applications, wear tests of silicon carbides, microstructure, hardfacing alloys, sliding ...

This book presents the papers given at a conference on wear resistance. Topics considered at the conference included erosion in aluminium oxides, abrasive wear tests, x-ray diffraction, transmission electron microscopy, wear tests of low-cobalt alloys for hardfacing nuclear components, ...

A composite material consisting of WC-Co particles in a steel matrix was fabricated by sintering mixtures of WC-Co particles and a steel powder and infiltrating the sintered pieces with a copper alloy. Its wear resistance and mechanical properties were studied as a function of the content in WC-Co particles and other characteristics of the composite ...

The structure, hardness, abrasion, and erosion wear of Cr-Mo white iron (containing approximately 28% Cr and 1% Mo) heat treated at certain temperatures were studied. Results show that the heat treatment of white iron changes the structures and properties; that is morphology, amount, size, and distribution of secondary phases are affected. When white iron ...

The effect of chromium, aluminum and silicon on the wear of high-alloy chromium steels in abrasive media at high temperatures has been investigated. The steels were melted in high-frequency furnace and cast into specimens 50 mm in diameter and 10 mm thick...

High wear resistance Al-based composite coatings were prepared by laser cladding using powder mixtures of Al-12 wt. % Si+40 wt. % TiC and Al-40 wt. % Si+40 wt. % TiC. In the case of the coatings containing 12 % Si, the microstructure consists essentially of TiC particles dispersed in a matrix of primary ?-Al dendrites and interdendritic ?-Al+Si eutectic, ...

Wear resistance and structural transformations upon abrasive and adhesive wear of titanium nickelide Ti49.4Ni50.6 in microcrystalline (MC) and submicrocrystalline (SMC) states have been investigated. It has been shown that the abrasive wear resistance ...

... Accession Number : ADD142064. Title : Corrosion Resistance of TiC-Fe-Cr Alloys and Its Effect on Corrosive-Abrasive Wear,. ...

The corrosion and wear resistances of a series of cast chromium white irons (CWIs) were evaluated using electrochemical and low stress sliding abrasion tests. The results show clearly that corrosion resistance of these materials is largely dependent on the quantity of chromium in the matrix, while ...

Steels 20, 25, 45 and 25KhGT, after surface hardening by various diffusion methods, were subjected to abrasive wear tests. The highest resistance to wear in rolling friction was observed after holding 2 hr in a given melt containg 3 percent of a given com...

The development of materials with improved wear resistance, and the implementation of current wear-reducing technology in design procedures, are important steps in conserving energy and materials. The basic wear process is defined as the degradation and removal of material surface, and is explained in terms of ...

... cu, whiskers, material characteristics and data fields:, abrasive wear data, fiber data testing and test conditions:, abrasion tests, sem manufacturing ...

In the present work, the effect of an Mg addition on the mechanical properties of the Al-60 vol pct SiC p composites were investigated by uniaxial compression, three-point bending, impact and wear tests (composite-metal and composite-abrasive types). The composites were produced by the pressure-infiltration technique. The composition of the Al matrix was ...

The high efficiency of the transport of various abrasive materials directly through pipes has dictated its widespread use in the ore-extracting and ore-refining and petroleum-extracting and refining braanches of industry. This paper studies the problem of establishing the basic factors that ensure stable pipe resistance. Experimental specimens of ...

Techniques for characterizing and improving the wear properties of metals and composites are discussed in reviews and reports. Topics addressed include the use of interatomic potentials to study the relationship between abrasive wear and other mechanical properties, gas-detonation powder spraying of diamond coatings, a fluidized-bed ...

Microstructure of WC reinforced Ni-based self-fluxing alloy composite coating sprayed and fused by oxy-acetylene flame was investigated by scanning electron microscopy and energy dispersive X-ray Spectrometry, X-ray diffraction, and transmission electron microscopy. The wear performance of the coating was studied by a MLS-225 wet sand rubber wheel abrasive ...

The purpose of this research is to study the influence of the microstructure and hardness of the nickel based hardfacing alloy on wear resistance of deposit layers when different alloy elements are added. Different deposit layers were obtained by SMAW in which AWS RNiCr bare electrodes were coated by fluxes, to which different measures of ferro-niobium, ...

... Title : Increasing Abrasion Resistance of Reinforced Plastics,. Corporate Author : ... Temperature as a function of abrasion resistance is examined. ...

This article presents equations which can be used in the selection of optimal correlations of the hardness of the surface layer of steel 40Kh and the abrasive filler in the design and manufacture of components of oil-well equipment operating under conditions of hydroabrasive wear. An experiment was conducted to determine the relation of the surface ...

Two medium carbon low-alloy MnSiCrB cast steels containing different Cu contents (0.01 wt pct and 0.62 wt pct) were designed, and the effect of Cu on the mechanical properties and corrosion-abrasion wear behavior of the cast steels was studied. The results showed that the low-alloy MnSiCrB cast steels obtained excellent hardenability by a cheap alloying ...

Recent advances in the preparation, evaluation, and application of wear-resistant materials are discussed in reviews and reports. Topics addressed include friction and wear mechanisms in engineered materials, advanced materials and surface treatments for friction/wear applications, lubrication of engineered materials, aerospace and ...

FeAl intermetallic compound coating was prepared by cold spraying using a mechanically alloyed Fe(Al) alloy powder followed by post-spray annealing at 950 �C. The high-temperature abrasive wear test was carried out for the FeAl coating at a temperature range from room temperature to 800 �C. The high-temperature abrasive ...