Effect of phosphorus and heat treatment on microstructure of Al-25%Si alloy

被引：0

作者：

Bo Dang ^{[1
]}

Zeng-yun Jian ^{[1
]}

Jun-feng Xu ^{[1
]}

Fang-e Chang ^{[1
]}

Man Zhu ^{[1
]}

机构：

[1] Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Xi’an Technological University

来源：

ChinaFoundry | 2017年 / 14卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Al-Si alloys; combination modifi cation; microstructure; orthogonal experiment;

D O I：

暂无

中图分类号：

TG146.21 []; TG166.3 [铝及其合金的热处理];

学科分类号：

080201 ; 080502 ; 080503 ;

摘要：

It is known that phosphorus can refine the primary silicon and heat treatment can spheroidize the eutectic silicon. This paper presents an optimal combination of heat treatment processes and P refinement on hypereutectic Al-Si alloy. The optimal P addition amount, and the solution and aging temperatures for Al-25%Si alloy were obtained through the orthogonal experiment, and their modification effects were discussed. The results show that P addition has the greatest modification effect, followed by aging temperature, and the modification effect of solution temperature is the least. The optimized modification parameters are: addition of 0.6% P, solution at 540 oC and aging at 160 oC. In addition, the cooling curve, superheating and hardness of the alloy were also analyzed.

引用

页码：10 / 15

页数：6

共 24 条

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