Influence of Boron on the Microstructure of Zr Containing Aluminum Alloy

Shan Peng; Yang Sheng; Liu Fengqin

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Influence of Boron on the Microstructure of Zr Containing Aluminum Alloy
Vol. 29, Issue 10, Pages: 964-966(2009)
Published： 2009 ，
DOI：

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[1]单鹏,杨昇,刘凤芹.B对含Zr铝合金微观组织的影响机理[J].特种铸造及有色合金,2009,29(10):964-966+881.

Shan Peng, Yang Sheng, Liu Fengqin. Influence of Boron on the Microstructure of Zr Containing Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys 29(10):964-966(2009)
[1]单鹏,杨昇,刘凤芹.B对含Zr铝合金微观组织的影响机理[J].特种铸造及有色合金,2009,29(10):964-966+881. DOI：

Shan Peng, Yang Sheng, Liu Fengqin. Influence of Boron on the Microstructure of Zr Containing Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys 29(10):964-966(2009) DOI：

摘要

对铝合金中B的加入对Zr在合金中的存在形态和相组成的影响以及B对合金中Zr的影响机理进行了分析。结果表明

B的加入使合金中的部分Zr由固溶态转变为析出态

以细小的板片状第二相粒子的形态存在于晶粒内部和晶界处

减少了晶格畸变

改善了Al基体的有序性

这会对合金导电性的改善产生有益影响。

Abstract

Effects of B addition on morphology and phase constituent of Zr in the aluminum alloy and its working mechanism were described. The results reveal that some Zr is converted from solid solution phase into fine secondary platelet existing in grain and on grain boundary with B addition

which is beneficial for the improvement of electric conductivity of the A356 alloy by reducing the lattice distortion and improving the orderly degree of Al matrix.