, Volume 42, Issue 4, pp 1117-1126

Solidification Behavior of Intensively Sheared Hypoeutectic Al-Si Alloy Liquid

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The effect of the processing temperature on the microstructural and mechanical properties of Al-Si (hypoeutectic) alloy solidified from intensively sheared liquid metal has been investigated systematically. Intensive shearing gives a significant refinement in grain size and intermetallic particle size. It also is observed that the morphology of intermetallics, defect bands, and microscopic defects in high-pressure die cast components are affected by intensive shearing the liquid metal. We attempt to discuss the possible mechanism for these effects.

Manuscript submitted December 8, 2009.