Paper Title:
Microstructural Evolution in Various Regions of Stir Zone during Friction Stir Processing of Al-7Si-0.3Mg Cast Alloy
  Abstract

Castings may be used more as structural components if friction stir (FS) processing could refine the microstructures satisfactorily. For this, material flow and the formation of various microstructural regions during FS were studied. It was found that -Al dendrites and eutectic Al-Si were sheared into the thread spaces and the microstructures were significantly modified and refined. Material merely dragged into the FS zone remains microstructurally segregated. The volume of each flow was affected by rotation speed and forward speed and the reason for this is explained. Finally, textures determined together with the strain values estimated are presented to discuss further the microstructual development in various stir zones.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
962-965
DOI
10.4028/www.scientific.net/MSF.654-656.962
Citation
Z. W. Chen, S. Cui, W. Gao, T. P. Zhu, "Microstructural Evolution in Various Regions of Stir Zone during Friction Stir Processing of Al-7Si-0.3Mg Cast Alloy", Materials Science Forum, Vols. 654-656, pp. 962-965, 2010
Online since
June 2010
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