Ti对耐热导电铝合金微观组织和性能的影响

刘潇; 杨昇; 赵艳

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Ti对耐热导电铝合金微观组织和性能的影响
Effects of Ti on Microstructure and Properties of Heat Resistant Conductive Aluminum Alloy
2011年31卷第9期页码：862-865
纸质出版日期： 2011 ，
DOI：

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[1]刘潇,杨昇,赵艳.Ti对耐热导电铝合金微观组织和性能的影响[J].特种铸造及有色合金,2011,31(09):862-865.

Liu Xiao, Yang Sheng, Zhao Yan. Effects of Ti on Microstructure and Properties of Heat Resistant Conductive Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2011,31(9):862-865.
[1]刘潇,杨昇,赵艳.Ti对耐热导电铝合金微观组织和性能的影响[J].特种铸造及有色合金,2011,31(09):862-865. DOI：

Liu Xiao, Yang Sheng, Zhao Yan. Effects of Ti on Microstructure and Properties of Heat Resistant Conductive Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2011,31(9):862-865. DOI：

摘要

研究了Ti对含有Zr和B的耐热导电铝合金微观组织和性能的影响。结果表明

在耐热导电铝合金中加入Ti

Ti和Zr、B形成复合粒子（Ti

Zr）B2。因（Ti

Zr）B2晶格常数较ZrB2小

使铝基体的畸变能减小

基体的有序性增加

使铝合金的电导率提高。调整B的含量

使B与Ti+Zr的摩尔比达到2:1以上

同时避免Ti过量

铝合金的电导率会进一步提高。

Abstract

Effects of Ti on microstructure and properties of heat resistant conductive aluminum alloy contained Zr and B were investigated.The results show that

with Ti addition

compound（Ti

Zr）B2 phase is formed with Zr and B in the alloy.Distortion of Al matrix is decreased and order in Al matrix is increased as a result of lattice constant of（Ti

Zr）B2 phase lower than ZrB2

improving the conductivity of Al alloy.Through adjusting B content

the molar ratio of B via Ti+B is more than 2:1 in the absence of excessive Ti

further improving the conductivity of the Al alloy.