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The 3rd Pan American Materials Congress in San Diego, California, February 26–March 2, 2017, provided an opportunity to bring together many participants working in the field of severe plastic deformation. This article provides a brief review of these activities.
It is now well established that the processing of bulk solids through the application of severe plastic deformation (SPD) leads to exceptional grain refinement to the submicrometer or nanometer level. Extensive research over the last decade has demonstrated that SPD processing also produces unusual phase transformations and leads to the introduction of a range of nanostructural features, including...
Nanostructuring of various materials is a key for obtaining extraordinary properties that are very attractive for different structural and functional applications. During the last two decades, the production of bulk nanostructured materials (BNMs) by severe plastic deformation (SPD) techniques has attracted special interest since it offers new opportunities for the fabrication of commercial nanostructured...
This overview highlights very recent achievements and new trends in one of the most active and developing fields in modern materials science: the production of bulk ultrafine-grained (UFG) materials using severe plastic deformation (SPD). The article also summarizes the chronology of early work in SPD processing and presents clear and definitive descriptions of the terminology currently in use in...
Nanostructured materials produced by severe plastic deformation (SPD) are 100% dense, contamination-free, and sufficiently large for use in real commercial structural applications. These materials are found to have high strength, good ductility, superior superplasticity, a low friction coefficient, high wear resistance, enhanced high-cycle fatigue life, and good corrosion resistance. This article...
Discontinuously reinforced metal-matrix composites (MMCs) have extensive potential for use in structural applications at elevated temperatures. However, any use at high temperatures will require a detailed understanding of the creep characteristics of the MMCs and especially the dependence of the measured creep rates on the magnitudes of the applied stress and the testing temperatures. This report...
Equal-channel angular pressing is an effective tool for attaining ultrafine grain sizes in bulk materials. An important advantage of this technique over conventional metalworking processes, such as extrusion and rolling, is that very high strains may be attained without any concomitant change in the cross-sectional dimensions of the sample. The microstructures introduced by equalchannel angular pressing...
Ultrafine grain sizes may be introduced into bulk samples by using the intense plastic straining technique equal-channel angular pressing. This article describes the principles of equal-channel angular pressing and demonstrates the application of this procedure to attain ultrafine grain sizes in an Al-3Mg solid-solution alloy and a commercial cast Al-Mg-Li-Zr alloy. Provided there is stability of...
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