Developing Superplasticity in Metallic Alloys through the Application of Severe Plastic Deformation

被引：0
|
作者：
Figueiredo, R. B. [1 ]
Kawasaki, M. [1 ]
Langdon, T. G. [1 ]
机构：
[1] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA
来源：
RECENT DEVELOPMENTS IN THE PROCESSING AND APPLICATIONS OF STRUCTURAL METALS AND ALLOYS | 2009年 / 604-605卷
关键词：
STRAIN-RATE SUPERPLASTICITY; CHANNEL ANGULAR EXTRUSION; ZN-22-PERCENT AL-ALLOY; ULTRAFINE-GRAINED MATERIALS; COMMERCIALLY PURE ALUMINUM; BOUNDARY SLIDING BEHAVIOR; TO-WORK ALLOYS; MAGNESIUM ALLOY; MECHANICAL-PROPERTIES; POWDER-METALLURGY;
D O I：
10.4028/www.scientific.net/MSF.604-605.97
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Processing through the application of severe plastic deformation (SPD) provides an opportunity for achieving very significant grain refinement in bulk metals. Since the occurrence of superplastic flow generally requires a grain size smaller than similar to 10 mu m, it is reasonable to anticipate that materials processed by SPD will exhibit superplastic ductilities when pulled in tension at elevated temperatures. This paper summarizes the fundamental principles of SPD processing and describes recent results demonstrating the occurrence of exceptional superplastic flow in these ultrafine-grained materials.
引用
收藏
页码：97 / 111
页数：15
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