Effect of Eutectic Reaction Induced by Pr on Microstructure in Semisolid A356 Alloy

Abstract:

Semisolid A356 alloy, which is grain-refined by Pr, was prepared by low superheat pouring. The effects of grain-refined by Pr on the morphology and the grain size of the primary α-Al in semisolid A356 alloy are researched. The results indicate that semisolid A356 alloy with particle-like and rosette-like primary α-Al can be prepared by low superheat pouring from liquid A356 alloy grain-refined by Pr. The grain size and particle morphology of primary α-Al in A356 alloy are markedly improved by 0.3wt% Pr. The refining mechanism of Pr on the morphology and the grain size of the primary α-Al in semisolid A356 alloy were delved.

• Periodical: Advanced Materials Research (Volume 322)
• Pages: 361-364
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.322.361
• Online since: August 2011
• Authors: Zheng Liu, Xiao Mei Liu, Yong Mei Hu
• Keywords: A356 Aluminum Alloy, Eutectic Reaction, Pr

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