Severe Plastic Deformation Techniques for Bulk Ultrafine-grained Materials |
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| Authors: | Wang Chengpeng Li Fuguo Chen Bo Yuan Zhanwei and Lu Hongya |
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| Affiliation: | State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China |
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| Abstract: | Ultrafine-grained (UFG) metal materials processed by severe plastic deformation (SPD) have attracted the great interest. This overview introduces some attractive SPD techniques. Special attention is paid to two new deformation techniques named Elliptical Cross-section Spiral Channel Extrusion with Equal-area (ECSEE) and Elliptical Cross-section Spiral Channel Drawing with Equal-area (ECSDE). The mechanism and microstructure transformation characteristics of materials in SPD, current problems and ongoing research are also discussed in detail |
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| Keywords: | severe plastic deformation ultrafine-grain high-angle grain boundary |
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