屑挤压ZM6-3.5Ce镁合金的组织和力学性能  

Microstructure and mechanical properties of ZM6-3.5Ce magnesium alloy produced by extrusion of machined chips

作　　者：文丽华[1] 宁慧燕[1] 翁江翔[1] 孙圣迪[1] 王东胜[1] 毕凤阳[1] 徐莉[1] WEN Li-hua;NING Hui-yan;WENG Jiang-xiang;SUN Sheng-di;WANG Dong-sheng;BI Feng-yang;XU Li(Machinery and Electric Department, Heilongjiang Institute of Technology,Harbin 150050, China)

机构地区：[1]黑龙江工程学院机电工程学院,黑龙江哈尔滨150050

出　　处：《轻合金加工技术》2018年第6期52-55,共4页Light Alloy Fabrication Technology

基　　金：哈尔滨市科技创新人才研究专项资金(2015RAQXJ020;2017RAQXJ066);黑龙江省青年科学基金(QC2017061)

摘　　要：采用屑挤压法合成ZM6镁合金废屑和Mg-Ce中间合金屑制成棒材,研究Mg-Ce中间合金屑形状对合成镁合金棒的组织和性能影响,并讨论其断裂行为。结果表明:屑挤压后,Mg-Ce中间合金屑没有被打碎,合金棒材的力学性能较差。相比较而言,含w(Ce)=3.5%(屑状)的ZM6镁合金综合性能好一些,抗拉强度为180 N/mm2,伸长率为5.5%,试样的断裂方式为脆性断裂。A method for recycling ZM6 magnesium alloy chips and Mg-Ce alloy chips and making them into rods by extrusion of machined chips was studied. The effect of Mg-Ce alloy chips＇ shape on microstructure and mechanical properties of magnesium rod was analyzed and the fracture behavior was discussed. The results indicate that after extrusion of machined chips, tensile strength and elongation to failure of the alloy rod are very low because Mg-Ce intermedi- ate alloy chips are not broken. In comparison, tensile strength and elongation to failure of ZM6- 3.5% Ce（chips）are better. Ultimate tensile strength and elongation to failure of the alloy are 180 N/mm^2 and 5.5% ,respectively. Fracture mode of the specimen is brittle fracture.

关 键 词：ZM6镁合金 Mg-Ce中间合金 热挤压 组织 力学性能 

分 类 号：TG146.22[一般工业技术—材料科学与工程]