Developing the Technique of Severe Plastic Deformation Processing through High-Pressure Torsion
The processing of metals through the application of severe plastic deformation provides the potential for achieving exceptional grain refinement in bulk solids. Several SPD methods are now available but processing by high-pressure torsion (HPT) has attracted much attention over the last five years. Numerous reports are now available describing the application of HPT to a range of pure metals and simple alloys and excellent grain refinement were achieved using this process with the average grain size often reduced to the nanoscale range. However, in order to make this technique more practical, the nature of the sample characteristics immediately after conventional HPT must be considered in order to understand the fundamental principles of HPT processing. This report examines the procedure with special emphasis on the evolution in hardness homogeneity in both high-purity aluminum and a Zn-22% Al eutectoid alloy processed by HPT.
Megumi Kawasaki Terence G.Langdon
Departments of Aerospace & Mechanical Engineering and Materials Science University of Southern Calif Departments of Aerospace & Mechanical Engineering and Materials Science University of Southern Calif
国际会议
5th International Conference on Nanomaterials by Severe Plastic Deformation(第五届剧烈塑性变形纳米材料国际会议)
南京
英文
397-402
2011-03-01（万方平台首次上网日期，不代表论文的发表时间）