铜对Zn-40Al合金组织和摩擦磨损性能的影响  

Influence of Copper Content on Microstructure and Performance of Zn-40Al Alloys

作　　者：江宇[1] 何顺荣[1] 汪兴娟[1] 王久林[1] 刘伟伟[1] 董雄英[1] 宣自军[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230009

出　　处：《铸造技术》2013年第7期797-799,共3页Foundry Technology

基　　金：合肥工业大学创新项目资助(2012CXCY052)

摘　　要：通过对比铜对Zn-40Al合金中α相所占比例、合金硬度、耐磨性的变化规律,研究了铜含量对含铝40%的锌铝合金组织和摩擦磨损性能的影响。结果表明,随铜含量的增加,合金中α相数目减少、硬度增加,耐磨性先增加后减小。铜含量较少时合金硬度增加的主要原因是固溶强化,铜含量较高时则是ε相析出强化作用,且固溶强化效果要好于ε相析出的效果。The influence of copper content on microstructure and wear resistance of Zn-40Al alloys were studied by the changes of the proportion of a phase, the hardness and wear resistance of the alloys. The results show that, with the increase of copper content, the amount of ct phase decreases, the hardness increases and wear resistance increases at first and then decreases. Solution strengthening is the main factor of the increase of hardness when copper content is lower, while second phase strengthening is the main factor when copper content is higher. The effect of solution strengthening is better than second phase strengthening.

关 键 词：合金元素 铜 锌铝合金 耐磨性 

分 类 号：TG115.58[金属学及工艺—物理冶金]