Title

Effect of Multiple-pass Friction Stir Processing on Microstructure and Tensile Properties of a Cast Aluminum-silicon Alloy

Abstract

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.

Department(s)

Materials Science and Engineering

Sponsor(s)

United States. Defense Advanced Research Projects Agency
National Science Foundation (U.S.)

Keywords and Phrases

Cast A356; Friction Stir Processing; Multiple-Pass; Overlapping Passes

Library of Congress Subject Headings

Aluminum alloy

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 Elsevier, All rights reserved.


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