高温保温期间富硅相的变化

蔡惠民

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高温保温期间富硅相的变化
The Change of Rich-St Phase During A Period of Holding Elevated Temperature
1995年第5期
纸质出版日期： 1995 ，
DOI：

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[1]蔡惠民.高温保温期间富硅相的变化[J].特种铸造及有色合金,1995(05):9-12.

Cai Huimin. The Change of Rich-St Phase During A Period of Holding Elevated Temperature[J]. Special Casting & Nonferrous Alloys, 1995,(5).
[1]蔡惠民.高温保温期间富硅相的变化[J].特种铸造及有色合金,1995(05):9-12. DOI：

Cai Huimin. The Change of Rich-St Phase During A Period of Holding Elevated Temperature[J]. Special Casting & Nonferrous Alloys, 1995,(5). DOI：

摘要

研究了在高温保温期间亚共晶和共晶Ａｌ－Ｓｉ合金中富硅相的变化过程及变化机理。实验结果表明，固溶均匀化、熟化、β－β间的界面能以及富硅β相的特性对富硅相形态的变化起重要作用。分析认为，对铸态组织进行细化和变质处理后，采用适当的热处理工艺，可获得细小、均布的球状共晶硅。

Abstract

The process and mechanism of the change of rich-Si phase in binary hypoeutectic and eutectic Al-Si alloys during a Period of holding elevated temperature have been investigated. Experimental evidence shows that solution homogenization

ripening

α-β inteface energy and the characteristic of rich-Si phase play imPOrtant roles.The way to gain fine and spheical rich-Si is to carry on a proper heat treating after refining and modification.

关键词

Al－Si合金高温保温富硅相的变化

Keywords

Al-Si alloyHolding elevated tempatureChange of rick-Si Phase

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液态过热对亚共晶Al－Si合金凝固组织与凝固过程的影响