High Effective Modification for Al-Si Alloy by Al-Si-P Master Alloy

ZUO Min; LIU Xiangfa; JIANG Kun; SUN Qianqian

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High Effective Modification for Al-Si Alloy by Al-Si-P Master Alloy
Issue S1, Pages: 152-155(2008)
Published： 2008 ，
DOI：

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[1]左敏,刘相法,姜琨,孙谦谦.Al-Si-P中间合金及其对Al-Si合金的变质处理[J].特种铸造及有色合金,2008(S1):152-155.

ZUO Min, LIU Xiangfa, JIANG Kun, et al. High Effective Modification for Al-Si Alloy by Al-Si-P Master Alloy. [J]. Special Casting & Nonferrous Alloys (S1):152-155(2008)
[1]左敏,刘相法,姜琨,孙谦谦.Al-Si-P中间合金及其对Al-Si合金的变质处理[J].特种铸造及有色合金,2008(S1):152-155. DOI：

ZUO Min, LIU Xiangfa, JIANG Kun, et al. High Effective Modification for Al-Si Alloy by Al-Si-P Master Alloy. [J]. Special Casting & Nonferrous Alloys (S1):152-155(2008) DOI：

摘要

研制了一种高效且适用性强的Al-Si合金变质剂——Al-Si-P中间合金。由于AlP与Si具有相似的晶体结构

中间合金中Si的引入起到了促进AlP均匀分布的作用。该中间合金含有大量AlP颗粒

加入到共晶和过共晶Al-Si合金中后

分别起到促进初晶硅析出和细化初晶硅的作用。该中间合金具有变质效果好、长效、无污染、使用简便和使用成本低等优点

具有广阔的应用前景。

Abstract

In this study

a novel Al-Si-P master alloy has been successfully prepared to modify and refine primary Si in eutectic and hypereutectic Al-Si alloys. Since Si has similar crystal structures and lattice parameters with AlP

it can control the distribution of AlP in Al-Si-P master alloy. With addition of Al-Si-P master alloy

AlP particles pre-formed in Al-Si-P master alloy can nucleate primary Si which contribute to the precipitation and refinement of primary Si in eutectic and hypereutectic Al-Si alloys respectively. Forthermore

Al-Si-P master alloy has the advantages of stable and long-term modification efficiency

simple operation

no pollution to environment and low comprehensive cost

and can be used widely in the aluminum industry.