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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 12    No. 6    December 2002

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Development of high plasticity Al-Si alloy and its casting process
GUO Guo-wen(郭国文), LI Yuan-yuan(李元元),CHEN Wei-ping(陈维平),
ZHANG Da-tong(张大童),LONG Yan(龙 雁)

College of Mechanical Engineering, South China University of Technology, 
Guangzhou 510640, China

Abstract:Aiming to meet the challenge of the shape complexity and high plasticity demanded for the upper connective plate(UCP) in motorcycle, a high plasticity Al-Si alloy named HGZL-02 was developed by optimizing the chemical composition and casting process. Premium UCP castings were obtained by using optimized casting process. Results show that fine and dense microstructure are obtained in the UCP castings. An average of 224MPa in ultimate tensile strength, 149MPa in yield strength and 13.2% in elongation are achieved for T6 heat-treated UPS castings.

 

Key words:  high plasticity; Al-Si alloy; permanent mold casting

ISSN 1672-7029
CN 43-1423/U

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