Accumulative back extrusion (ABE) is a kind of severe plastic deformation process to refine the microstructure, resulting in significant improvement in mechanical properties. In the present study, AA6061-T6 alloy was subjected to a newly designed ABE process at room temperature. One cycle of ...

... Alloy AA6061-T6 (40 ksi yield strength) is used where corrosion resistance is ... was to develop a fabrication route for the production of fuel tank hull ...

The grain boundary crystallographic misorientations of magnetic-pulse-welded (MPW) aluminum alloy (AA) 6061-T6 in linear and tubular configurations were examined using the electron backscattered diffraction (EBSD) technique. A refined structure of heavily deformed grains with higher grain boundary angles was ...

... 3al(see ti-3al-13v-11cr), ti-6al-4v, aa 2014-t6, aa 2024-t3, aa 2219-t851, aa 6061-t6, aa 7075-t6, cda 706, custom 450, incoloy 901, inconel 718 ...

The design of space systems and associated equipment has to be based on fracture control principles to prevent failure of certain structural items resulting in catastrophic or critical events. In order to prevent such catastrophic hazards from occurring, use of containment design is an attractive option. A simplified analytical method for verification of containment is developed and described. ...

In micro-hot embossing of polymeric micro-devices, e.g. microfluidic devices, the quality of the mold plays an important role in determining not only the product quality but also the overall production cost. Often the mold is made of silicon, which is brittle and fails after producing a limited number of parts. Metallic molds produced by micro-machining have a much longer life; however, the ...

A solar collector is described comprising an extrusion, preferably of cellular plastics material, having a longitudinally extending recess and a metal absorber sheet thereover, a tube disposed within the recess in contact with the metal absorber sheet, and a transparent window. The extrusion recess is of semi-circular cross-section, ...

With a focus to develop a quantitative understanding of the FSW process, a comprehensive three dimensional heat transfer and plastic flow model is developed. The model can predict variables such as temperature and velocity fields and torque based on the given welding parameters like weld velocity, tool rotational speed and axial pressure. It considers tool design dependent spatially variable heat ...

Electromagnetic crystals have potential applications from microwave to optical frequencies. At present, several methods can be applied to fabricate these structures, for example, stereolithography and wafer etching. In this work, extrusion freeforming, one of the linear solid freeforming methods, was used to fabricate electromagnetic crystals and the forming, drying, debinding ...

Although extrusion technology has contributed much to increasing the effective utilization of whey, the effect of extrusion conditions on the functional properties of the proteins is not well understood. In this work, the impact of extrusion temperature on the physical and chemical properties, molecular structures, and protein quality ...

... (Author). Descriptors : (*CARBON, *EXTRUSION), (*GRAPHITE, EXTRUSION), DENSITY, ELECTRODES, RODS, POWDERS, COMPACTING ...

Tantalum fabrication methods primarily for use as a container for molten plutonium are described. One method involved the rolling of a Ta billet into sheet of the desired age, cutting a circular blank, and deep drawing the tantalum blank through successive stages into the desimed shape. Another method used for the fabrication of Ta containers consisted of a ...

To explore the complex relationship between processing conditions and functional and nutritional properties of food products containing whey protein isolate (WPI), we investigated the effect of extrusion texturization at various temperatures (50, 75, and 100 �C) and varying moisture levels of the feed (20, 30, 40, and 50%) on changes in the composition, molecular structure, ...