Effect of Multiple-pass Friction Stir Processing on Microstructure and Tensile Properties of a Cast Aluminum-silicon Alloy
Five-pass friction stir processing (FSP), with 50% overlap, was conducted on cast A356. Overlapping FSP did not exert a significant effect on the size and distribution of the Si particles. In the as-FSP condition, the strength and ductility of the transitional zones between two FSP passes were slightly lower than those of the nugget zones. Further, in the multiple-pass material the strength of the previously processed zones was lower than that of the subsequent processed zones due to overaging from the FSP thermal cycles.
Z. Y. Ma et al., "Effect of Multiple-pass Friction Stir Processing on Microstructure and Tensile Properties of a Cast Aluminum-silicon Alloy," Scripta Materialia, Elsevier, Jan 2006.
The definitive version is available at http://dx.doi.org/10.1016/j.scriptamat.2006.01.010
Materials Science and Engineering
United States. Defense Advanced Research Projects Agency
National Science Foundation (U.S.)
Keywords and Phrases
Cast A356; Friction Stir Processing; Multiple-Pass; Overlapping Passes; Aluminum alloy
Article - Journal
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