Friction Stir Processing of a Cast WE43 Mg Alloy
A heat treatable sand cast WE43 magnesium alloy was friction stir processed (FSP) at 3 heat indices to determine the effect on microstructural and mechanical properties of the processed region. In addition, the sequence of solutionizing and aging heat treatment was investigated to maximize the processing efficiency, which is defined as the percent increase of FSP nugget yield strength over base yield strength. The maximum processing efficiency achieved for the casting was 125%, when a yield strength of 250 MPa was achieved in the FSP + T5 heat treatment condition. Compared to a yield strength of 202 MPa in the cast + T6 condition, this increase in mechanical properties is an attractive prospect for the local enhancement of Mg-Y-RE sand castings.
R. S. Mishra et al., "Friction Stir Processing of a Cast WE43 Mg Alloy," The Minerals, Metals, and Materials Society Annual Meeting, The Minerals, Metals & Materials Society (TMS), Jan 2007.
Materials Science and Engineering
Keywords and Phrases
WE43; Cast Magnesium; Friction Stir Processing; Grain Size
Article - Conference proceedings
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