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Influence of Solution Temperature and Time on Microstructure and Properties of A357 Alloy

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Abstract:

Metallographic analysis, hardness testing and diffusion kinetics analysis were used to investigate the influences of temperature and time on morphology of eutectic Si and properties of A357 alloy under the solution heat treatment, and optimal solution parameters were determined. The results indicate that solution heat temperature strongly influences the morphology of eutectic Si and mechanical properties of the A357 casting alloys. Spheroidization degree of eutectic Si decreases and the mechanical properties of A357 alloy with the increasing of solution temperature. According to the experiment results, optimal solution parameters of A357 alloy were determined as 550°C×6h.

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Periodical:

Advanced Materials Research (Volumes 399-401)

Pages:

2195-2198

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.399-401.2195

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Online since:

November 2011

Authors:

Yang Li, Hai Feng Cheng, Jian Min Zeng, Yu Lin Zheng

Keywords:

A357 Aluminum Alloy, Microstructure, Property Analysis, Solution Heat Treatment

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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