高铝锌基合金的力学性能与显微组织研究  

Mechanical Properties and Microstructure of High Aluminum Zn-based Alloys

作　　者：冯建情[1] 曾建民[1] 邹勇志[1] 孙仙奇[1] 

机构地区：[1]广西大学有色金属材料及其加工新技术省部共建重点实验室,广西南宁530004

出　　处：《机械工程材料》2004年第11期41-43,48,共4页Materials For Mechanical Engineering

基　　金：广西教育厅自然科学基金资助项目(C701001)

摘　　要：研究了五种不同铝含量(30%～50%)的锌基合金在室温、100℃和200℃时的力学性能及影响因素。结果表明:高铝锌基合金的组织为初生α′相枝晶和α与η相的共析体及少量ε相、Mn相和共晶体等。随着合金中含铝量的增多,α′相枝晶增多,共析体减少。在室温下ZA45具有较高的力学性能;ZA50具有较高的高温力学性能。Mechanical properties at room temperature, 100℃ and 200℃ of five different Al-containing (30%～50%) Zn-based alloys were investigated. The results show that microstructure of the Zn-based alloys consists of primary phase α′, and eutectoid (α+η) with a small quantity of ε, Mn-containing phases and eutectic. The quantity of primary phase α′increases and the eutectoid decreases with the increase of aluminum content in the alloys. Mechanical properties of ZA45 are better at room temperature, whereas ZA50 has the best elevated temperature mechanical properties.

关 键 词：高铝锌基合金 力学性能 抗拉强度 伸长率 硬度 

分 类 号：TG113.25[金属学及工艺—物理冶金] TG146.1[金属学及工艺—金属学]