Effect of Heat Treatment on Microstructures and Mechanical Properties of A356 Alloy by Low Pressure Casting

Xiao Jian Yu; Ya Lin Lu; Fu Xian Zhu; Xing Cheng Li

doi:10.4028/www.scientific.net/AMR.1096.319

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1096Effect of Heat Treatment on Microstructures and...

Effect of Heat Treatment on Microstructures and Mechanical Properties of A356 Alloy by Low Pressure Casting

Abstract:

Automobile wheel of A356 alloy was cast by low pressure casting process. The effect of heat treatment process on microstructures and mechanical properties of A356 alloy cast was discussed. The results indicated that optimal parameters of heat treatment process for A356 alloy included solution temperature of 535°Cand holding time of 4.5hours, aging temperature of 145°Cand holding time of 4hours. Ultimate strength of A356 is 270MPa and elongation rate is 10%. Meanwhile, the microstructure has been apparently improved. The eutectic silicon particle became more spheroidal and distributed uniformly in matrix.

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Periodical:

Advanced Materials Research (Volume 1096)

Pages:

319-324

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1096.319

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Online since:

April 2015

Authors:

Xiao Jian Yu, Ya Lin Lu*, Fu Xian Zhu, Xing Cheng Li

Keywords:

A356 Alloy, Heat Treatment, Mechanical Property, Microstructure

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