Effects of friction stir processing on mechanical properties of the cast aluminum alloys A319 and A356

被引：207
|
作者：
Santella, ML [1 ]
Engstrom, T
Storjohann, D
Pan, TY
机构：
[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA
[2] S Dakota Sch Mines & Technol, Dept Mat & Met Engn, Rapid City, SD 57701 USA
[3] Ford Motor Co, Sci Res Labs, Dearborn, MI 48124 USA
来源：
SCRIPTA MATERIALIA | 2005年 / 53卷 / 02期
关键词：
aluminum alloys; casting; friction stir welding; mechanical properties; surface structure;
D O I：
10.1016/j.scriptamat.2005.03.040
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Surfaces of A319 and A356 castings were treated by friction stir processing to reduce porosity and to create more uniform distributions of second-phase particles. Dendritic microstructures were eliminated in stir zones. The ultimate tensile strengths, ductilities, and fatigue lives of both alloys were increased by the friction stir processing. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：201 / 206
页数：6
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