ZM5镁合金隔板件挤压铸造工艺研究  

Squeeze Casting Technology of ZM5 Magnesium Alloy Baffle

作　　者：陈利文[1] 赵宇宏[1] 孙晓平 景舰辉 赵源 樊如意 侯华[1,2] Chen Liwen;Zhao Yuhong;Sun Xiaoping;Jing Jianhui;Zhao Yuan;Fan Ruyi;Hou Hua(Collaborative Innovation Center of Ministry of Education and Shanxi Province for High-performace Al/Mg Alloy Materials,School of Materials Science and Engineering,North University of China;School of Materials Science and Engineering,Taiyuan University of Science and Technology)

机构地区：[1]中北大学材料科学与工程学院,高性能铝/镁合金材料开发及应用省部共建协同创新中心 [2]太原科技大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2023年第7期865-870,共6页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(52074246,22008224,52275390,52205429,52201146);国防基础科研资助项目(JCKY2020408B002,WDZC202212);山西省专利转化专项计划资助项目(202303002);山西省重点研发计划资助项目(202102050201011,202202050201014)。

摘　　要：基于ZBYT500多功能液态/半固态成形装备,采用间接挤压铸造工艺生产了ZM5镁合金隔板件,分别在铸件边缘厚壁位置、中心薄壁位置、直浇道位置取样,分析不同位置微观组织形貌及力学性能。在较快的热传导和压力下凝固,中心薄壁位置虽然存在大量的枝晶,但晶粒组织发生了明显的细化,力学性能明显优于其他位置,其抗拉强度达到185.4MPa,伸长率为5.6%。ZM5 magnesium alloy baffles were produced by indirect squeeze casting based on ZBYT500 multi-functional liquid/semi-solid forming equipment.Sampling from the edge,the center and the sprue to explore the microstructure morphology and mechanical properties of different positions.Due to the rapid heat transferring and solidification under pressure,there are a lot of dendrites in the central position,while the grain structure is obviously refined,and mechanical properties are obviously superior to those of the other positions,where the tensile strength is 185.4 MPa and elongation is 5.6%.

关 键 词：挤压铸造 镁合金铸件 微观形貌 力学性能 

分 类 号：TG249.2[金属学及工艺—铸造] TG146.22[一般工业技术—材料科学与工程]