... Effect of Aging on the Abrasion Behavior of ... characteristics and data fields:, abrasions, aging data ... sizes, wear rates, wear resistances testing and test ...
DTIC Science & Technology
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 ...
NASA Astrophysics Data System (ADS)
... wear resistances parameter values relevant to the data:, volume fractions testing and test conditions:, abrasion tests, abrasive wear tests, sem, three ...
... and wear behavior which was primarily abrasive (Ref 5:38, 45). This ... fer plate and measuring its thickness with a micrometer. The wear of ...
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 ...
Energy Citations Database
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 ...
Abrasive wear is the most common type of wear that causes failure of machine elements. Examinations of abraded surfaces revealed presence of embedded particles and grooves elongated along the sliding direction. This indicates that, there are two sequential stages of an abrasion process. In the first stage, ...
... from federally funded research, testing and training ... An abrasion test apparatus was designed and fabricated ... perform wear and friction tests on the ...
The effect of abrasive particle size on the wear behavior of the SiC particle-reinforced aluminium composites produced by liquid metallurgy was investigated under different sizes of SiC grits at a fixed speed. The results show that the wear loss of composite was considerably lower than that of aluminium alloy. The ...
... Title : The Abrasive Wear of Borosilicate Glass. Descriptive Note : Journal article,. ... Abstract : The abrasive wear of borosilicate glass was studied. ...
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 ...
High stress abrasive wear behavior of mild steel, medium carbon steel, and hardfacing alloy has been studied to ascertain the extent of improvement in the wear properties after hardfacing of steel. High stress abrasive wear tests were carried out by sliding the specimen ...
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...
National Technical Information Service (NTIS)
... 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,. ...
Effects of abrasive and fiber components in a medium on the wear behavior of composite resins were evaluated. Calcium diphosphate and methyl cellulose were included in the medium as abrasive and fiber components respectively. A range of 0, 4, or 8% abrasive- or fiber-containing media were ...
PubMed
Friction and wear behavior was determined for I-beam stiffened skins constructed of aluminum, graphite-epoxy composite, and glass hybrid composite under abrasive loading conditions typical of those occurring on the underside of a transport airplane during...
Friction and wear behavior was determined for small skin specimens under abrasive loading conditions typical of those occurring on the underside of a transport airplane during emergency belly landing. A test apparatus consisting of a standard belt sander ...
Friction and wear behavior was determined for small skin specimens under abrasive loading conditions typical of those occurring on the underside of a transport airplane during an emergency belly landing. A test apparatus consisting of a standard belt sand...
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 determining howa ceramic will ...
... from federally funded research, testing and training ... imbedded into the various test specimens to obtain temperature-time histories during abrasion. ...
... Title : The Problem of the Dependence of Wear Resistance of Metals during Abrasive Wear on Their Physicomechanical Properties,. ...
The effect of different experimental factors on the high-stress abrasive wear properties of steels has been studied. A correlation among the factors has been established by linear regression analysis. A computer software in Microsoft Basic language utilizing linear regression analysis has been developed with the capability of predicting the ...
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.
... ABRASIVE WEAR OF MATERIALS IN A BLAST FURNACE UNDER ACTUAL WORKING CONDITIONS by ... 09.TI1rLE ABRASIVE WEAR OF ...
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 wear failure ...
A modified ASTM G 65 rubber wheel test was employed in wet and dry conditions using 220 nm titania particles and 368 ?m sand particles, respectively. Both tests were conducted on WC-CoCr coatings produced with two powders with different carbide grain sizes (conventional and sub-micron) to address the effect of carbide size and abrasive medium characteristics on the ...
Recent advances in polymer (P) tribology are discussed in reviews and reports based on contributions to a symposium held by the Division of Polymeric Materials Science and Engineering of the Americal Chemical Society in St. Louis in spring 1984. Topics examined are mechanisms of P wear, controls of P wear, the tribological behavior of ...
... only abrasive but also corrosion wear has been established [1-5]. ... Since abrasive wear is taken as the main mechanism of wear, ...
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 that the abrasion ...
This study is a preliminary assessment of the abrasive wear behavior of monolithic MoSi[sub 2]. Comparisons with the wear behavior of other advanced materials, such as refractory metals, intermetallic compounds (i.e., TiAl, Fe[sub 3]Al), and ceramics (i.e., Si[sub 3]N[sub 4], ZrO[sub 2], and ...
... abrasive are presented; and the capability of the grain geometry parameters to ... Subject Categories : SOLVENTS, CLEANERS AND ABRASIVES. ...
... Accession Number : AD0720379. Title : The Mechanism of the Variation in the Abrasive Wear Resistance of G13L Steel After Hardening,. ...
... Accession Number : AD0749769. Title : The Abrasive Wear Resistance of Vacuum-Condensed Coatings,. Corporate Author ...
... Title : STUDIES ON ABRASIVE WEAR OF MONOLITHIC SILICON NITRIDE AND A SILICON CARBIDE WHISKER-REINFORCED SILICON ...
... 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 : QUICK AND SIMPLE TEST FOR ABRASIVE WEAR RESISTANCE AND ITS PRACTICAL USE,. Corporate Author : ...
... 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,. ...
... Title : ABRASIVE WEAR RESISTANCE OF STRUCTURAL STEELS DEPENDING ON THE HEAT-MECHANICAL TREATMENT (HIGH ...
... Accession Number : AD0193871. Title : ABRASION AND WEAR STUDIES BY MEANS OF RADIOACTIVE ISOTOPES. Corporate Author : ...
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. Discussion of second ...
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 surfac...
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 ...
DOE Information Bridge
... cu, whiskers, material characteristics and data fields:, abrasive wear data, fiber data testing and test conditions:, abrasion tests, sem manufacturing ...
Contacting components frequently fail by abrasion caused by solid contaminants in the lubricant. This process can be classified as a closed three-body abrasive wear process. The mechanisms by which trapped particles cause material removal are not fully understood. This paper describes tests using model elastohydrodynamic contacts to ...
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 ceramic materials, ...
... Title : The Influence of Particle Properties on the Erosive Wear of Sintered ... that their wear resistance depends on the nature of the abrasive particles. ...
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 ...
Rolling and sliding wear experiments were conducted on selected aluminum-based metal-composites against hard iron-base counterfaces. Wear morphology and surface chemistry in these composites after tribo-contact were characterized using a variety of analytical techniques to increase understanding of wear mechanisms. Different ...
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 ...
Research is presented which focuses on the micro-mechanical processes that dominate the friction and wear of rubber. New test concepts and equipment were developed to study the dynamic and kinematic effects involved in these processes. Several new analytical tools were presented to explain the observed results in quantifiable terms. Experiments conducted on filled NR confirmed ...
The article deals with the evaluation of abrasive wear resistance and adhesive strength of thermally sprayed coatings. The main attention was paid to differences between low- and high-stress abrasive conditions of the measuring. Conclusions include the evaluation of specific properties of the WC-Co and the Cr3C2-NiCr High Velocity ...
The electrochemistry of mineral-grinding media interactions in the wet grinding of one- and two-sulfide mineral ores is discussed with respect to the corrosive wear of the media and the flotation behaviors of the minerals. Electrochemical studies with mineral and steel electrodes under abrasive and nonabrasive conditions are correlated ...
The report gives a review of current knowledge on the textural changes experienced by road surfacing aggregates as a result of abrasion, polishing, differential wear and weathering. These have been related to the behavior of five particular roadstones of ...
A comparative study of the influence of randomly-oriented SiC whiskers on the abrasive wear behavior of several commercially-produced Si3N4- and Al2O3-based ceramics suggested that the residual stress states present within the materials can be important in predicting their wear resistance. The addition of SiC ...
The volume theory of ball wear ascribes ball consumption in grinding mills only to impactive wear, whereas the surface theory ascribes it only to abrasive wear, and ball-wear data are often in good agreement with either or both of these theories. In this ...
We have determined experimentally the rate of abrasive wear of rock on rock for a range of rock types as a function of normal stress and shear displacement. Unlike abrasive wear in fault zones, where wear products accumulate as a thickening gouge zone, in our experiments ...
Hardface weld cladding in industry most commonly uses cobalt-based STELLITE Nos. 6 and 12 and nickel-based Colmonoy Nos. 56, 83, and 88 for plasma transferred arc (PTA) welding of 4140 steel. Frictional and abrasion wear of weld layers are compared with that of the widely used nitridized, low-level SKD6, SACM1 steel alloys and with centrifugal-cast ...
Hardface weld cladding in industry most commonly uses cobalt-based STELLITE nos. 6 and 12 and nickel-based Colmonoy nos. 56, 83, and 88 for plasma transferred arc (PTA) welding of 4140 steel. Frictional and abrasion wear of weld layers are compared with that of the widely used nitridized, low-level SKD61, SACM1 steel alloys and with centrifugal-cast ...
Wear 252 (2002) 322�331 A physically-based abrasive wear model for composite materials Gun Y. Leea 2001 Abstract A simple physically-based model for the abrasive wear of composite materials is presented-matrix composite material. � 2002 Elsevier Science B.V. All rights reserved. Keywords: ...
E-print Network
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 ...
The three-body abrasive wear characteristics of four different ceramic materials were investigated. The work focused on the influence of the type of abrasive particles (alumina and silicon carbide) on the wear rate and the dominating wear mechanisms. A solid-state-sintered silicon carbide ...
Wear behavior of plasma-sprayed carbon nanotube (CNT)-reinforced hydroxyapatite (HA) coating is evaluated in the simulated body fluid environment. Apart from enhancing the fracture toughness and providing biocompatibility, CNT-reinforced HA coating demonstrated superior wear resistance compared with that of hydroxyapatite coating ...
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 ...
... Title : Wear of Si3N4 Ceramics by Abrasive Water Jet. ... Abstract : The wear mechanism of ceramics by abrasive water jet (AWJ) has been studied. ...
... Title : The Effect of Abrasion Resistance and Thermal Properties of the Cemented Carbide Cutting Tool Grade on the Flank Wear Characteristics. ...
... from federally funded research, testing and training ... agencies for Research Development Test and Evaluation ... mechanisms in the abrasion of Co ...
... AND FOR GOUGING ABRASION TESTING, BASED ON A ... BEEN EVALUATED AS TEST STANDARDS FOR ... LOW-STRESS TESTING HAS BEEN ...
... from federally funded research, testing and training ... for Research Development Test and Evaluation ... AND HIGH-STRESS (GOUGING) ABRASION. ...
... from federally funded research, testing and training ... for Research Development Test and Evaluation ... ON THE ABRASION WEAR RESISTANCE OF ...
... Title : An Improved Multipurpose Abrasion Tester and Its Application for the Evaluation of the Wear Resistance of Textiles. ...
... Abstract : Mild alloy and stainless steels are compared regarding wear abrasion and corrosion resistance for tools and comminution devices. ...
Dental erosion is a type of wear caused by non bacterial acids or chelation. There is evidence of a significant increase in the prevalence of dental wear in the deciduous and permanent teeth as a consequence of the frequent intake of acidic foods and drinks, or due to gastric acid which may reach the oral cavity following reflux or vomiting episodes. The ...
Owing to the brittle reinforced phase are introduced into ductile matrix phase, metal intermetallic interpenetrating composites exhibit various types of wear mechanism such as adhesive, abrasive, and fatigue wear. In present work, the wear model has been proposed according to the mixing rule. Many factors such as ...
Aug 6, 2011 ... The Mars Pathfinder Rover Wheel Abrasion Experiment was designed to study the abrasive wear of the martian soil on various types of metals ...
NASA Website
... ABSTRACT A standard off-the-shelf Taber Abraser instrument is used to quantify the abrasive wear resistance of high-density polyethylene jackets ...
An empirical approach to tool wear, which requires a series of machining tests for each combination of insert and work material, has been a standard practice for industries since early part of the twentieth century. With many varieties of inserts and work materials available for machining, the empirical approach is too experiment-intensive that the demand for the development ...
... 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.)
... federally funded research, testing and training ... for Research Development Test and Evaluation ... for Severe Abrasion-Wear Hardfacing Application,. ...
... Abstract : Laboratory testing procedures used to evaluate ... for their resistance to adhesive wear and dry ... The abrasion test described utilizes a gravity ...
... Title : Influence of a Corrosive-Abrasive Medium on the Wear Resistance of 12Kh18N10T Steel with Surface Hardening,. ...
... a strong grain size effect on abrasive wear mechanisms in ceramics, a series of tests were conducted under severe sliding contact conditions in an ...
... Accession Number : ADD201218. Title : Corrosion-Resistant and Abrasive Wear-Resistant Composite Material for Centrifugally Cast Linings,. ...
... Accession Number : ADD126259. Title : Abrasive Wear of Cast Aluminium Alloy-Zircon Particle Composites,. Corporate Author : ...
... Accession Number : ADD150069. Title : Abrasive Wear Study of Bainitic Nodular Cast Iron. Descriptive Note : Journal article,. ...
... Accession Number : ADD150868. Title : Abrasive Wear Resistance of High-Carbon Chrome-Nickel Steel. Descriptive Note : Journal article,. ...
The aim of this study was to clarify the influence of tetragonal zirconia polycrystal (TZP) on the two-body wear behavior of titanium (Ti). Two-body wear tests were performed using TZP, two grades of cp-Ti or Ti alloy in distilled water, and the cross-sectional area of worn surfaces was measured to evaluate the ...
The low stress abrasive wear behavior of two types of steels commonly used for making a number of commonly used engineering components has been compared with the composition of a few hardfacing alloys that can be overlayed on the steels to impart a wear-resistant surface. The mechanism of material removal as ...
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; erosion; corrosive ...
The purpose of the M.I.T. research on wear during the calendar year 1977 was to apply the delamination theory of wear in minimizing the wear rate of splines and door hinges. The technique explored was the use of thin soft metal coatings on hard substrates...
The abrasive wear behavior of titanium metal-matrix composites produced by powder metallurgical techniques was studied. Ti powder was mixed with 0, 20, or 40 volume percent (v%) TiB2, TiC, TiN, SiC, an B4C powder to produce a composite powder blend. The blends were consolidated by hot-pressing at 1200° C and 20 MPa for 2 hours. ...
A detailed review of wear resistance properties of austempered ductile iron (ADI) was undertaken to examine the potential applications of this material for wear parts, as an alternative to steels, alloyed and white irons, bronzes, and other competitive materials. Two modes of wear were studied: adhesive (frictional) dry sliding and ...
Abrasion-corrosion tests were conducted on two commonly Fe-Cr-C shielded metal arc welding (SMAW) hardfacings used in the sugar industry and an arc sprayed Fe-Cr-based coating. The tests were performed on a modified block-on-ring tester with the coatings sliding against compressed sugarcane fiber in the presence of abrasive slurry. The findings showed ...
... from federally funded research, testing and training ... for Research Development Test and Evaluation ... Wear Debris; The Abrasion Characteristics of ...
... The wear and abrasion resistance of various plastics used for various applications (automotive brake linings, pipe linings, gun barrel surfaces ...
... Title : WEAR RESISTANCE OF HIGH-CHROMIUM STEELS IN AN AIR-ABRASIVE MEDIUM AT HIGH TEMPERATURES,. ...
... Abstract : The forms and character of wear of hydraulic turbines, axial and centrifugal pumps due to abrasion by suspended accretions and ...
... The epoxy compounds were more resistant to abrasion by sand blasting than the other compounds. The maximum wear ...
... from federally funded research, testing and training ... of simultaneous action of abrasion and chemical wear ... in a laboratory test, predict performance ...
... PRINCIPAL WEAR MECHANISMS INVOLVES REMOVAL OF PLASTICALLY DEFORMED, EXPOSED MATERIAL FROM THE LIPS OF IMPACT ...
... Wear resistance of Fiberglass Reinforced Polyester surfaces are usually considered to be somewhat less than that of melamine surfaced laminates. ...
... a flow of gas under conditions ... Descriptors : *BLAST FURNACES, CORROSION INHIBITION ... ELECTROCHEMISTRY, CORROSIVE GASES, WEAR ...
