Friction Stir Microstructural Modification of Investment Cast F357
A hypoeutectic Al-Si alloy has been friction stir processed in this study using various run parameter combinations. Tensile test results indicate at least three times improvement in ductility value over as-cast T6 condition because of refinement in Si particle size. Si particle size and shape has been quantified and correlated with mechanical properties. Tool rotation rate seems to have the most significant effect on properties. Higher tool rotation rate resulted in more uniform and homogeneous microstructure though some anomaly is observed at very high tool rotation rate.
S. Jana et al., "Friction Stir Microstructural Modification of Investment Cast F357," Proceedings of the 2007 Minerals, Metals, and Materials Society Annual Meeting, The Minerals, Metals & Materials Society (TMS), Jan 2007.
Materials Science and Engineering
Keywords and Phrases
Aluminum Alloys; Casting Modification; Friction Stir Processing
Article - Conference proceedings
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