Influence of Step Solution Heat Treatment on Microstructure and Performance of Zn-40Al-4Cu Alloys

Wang Xingjuan1; Jiang Yu1; He Shunrong1; Wang Jiulin1; Liu Weiwei1; Dong Xiongying1; Xuan Zijun1

doi:10.15980/j.tzzz.2013.06.029

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Influence of Step Solution Heat Treatment on Microstructure and Performance of Zn-40Al-4Cu Alloys
Vol. 33, Issue 6, Pages: 555-558(2013)
Published： 2013 ，
DOI： 10.15980/j.tzzz.2013.06.029

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[1]汪兴娟,江宇,何顺荣,王久林,刘伟伟,董雄英,宣自军.分级热处理对Zn-40Al-4Cu合金组织和性能的影响[J].特种铸造及有色合金,2013,33(06):555-558.

Wang Xingjuan1, Jiang Yu1, He Shunrong1, et al. Influence of Step Solution Heat Treatment on Microstructure and Performance of Zn-40Al-4Cu Alloys. [J]. Special Casting & Nonferrous Alloys 33(6):555-558(2013)
[1]汪兴娟,江宇,何顺荣,王久林,刘伟伟,董雄英,宣自军.分级热处理对Zn-40Al-4Cu合金组织和性能的影响[J].特种铸造及有色合金,2013,33(06):555-558. DOI： 10.15980/j.tzzz.2013.06.029.

Wang Xingjuan1, Jiang Yu1, He Shunrong1, et al. Influence of Step Solution Heat Treatment on Microstructure and Performance of Zn-40Al-4Cu Alloys. [J]. Special Casting & Nonferrous Alloys 33(6):555-558(2013) DOI： 10.15980/j.tzzz.2013.06.029.

摘要

研究了分级热处理工艺对Zn-40Al-4Cu合金组织和耐磨性的影响。结果表明

分级热处理工艺能改善合金微观组织及成分均匀性

使α枝晶转变为块状

α+η共析体由片层状转变为颗粒状

ε相尺寸减小

形状变得圆整

大大增加了Zn-40Al-4Cu合金的硬度

减小摩擦因数

降低磨损量。

Abstract

Influences of the step solution heat treatment on microstructure and wear resistance of Zn-40Al-4Cu alloy were investigated. The results show that step solution treatment can improve the microstructure and homogeneous composition of Zn-40Al-4Cu alloy

where α dendrite is converted into block one

and α+η eutectoid structure is transformed from lamellar to well mixed particles. The size of ε phase is reduced with more round shape. In addition

step heat treatment can increase greatly the hardness of Zn-40Al-4Cu alloy and reduce the coefficient of friction and wear loss.