某新型低温材料的复合合金化与超声振动辅助铸造研究  

Study on Composite Alloying of A New Low-temperature Material and Supersonic Vibration Assisted Casting

作　　者：王瑞[1] 赵亚辉[2] 

机构地区：[1]宝鸡文理学院物理系,陕西宝鸡721007 [2]西安科技大学材料科学与工程学院,陕西西安710054

出　　处：《热加工工艺》2015年第19期100-102,共3页Hot Working Technology

基　　金：陕西省教育厅自然科学计划项目(2013JK0619);宝鸡文理学院院级重点项目(ZK10124)

摘　　要：采用复合合金化和超声振动辅助铸造的方法，制备了Sn42Bi52Zn5Cu0．7Y0．3新型低温合金材料。通过显微组织观察、熔化特性与力学性能测试和分析后发现：该新型材料的熔化范围存181.21-190．84℃之间，熔化峰值温度为187．37℃：与常规Sn42Bi58相比，Sn42Bi52Zn5Cu0．7Y0．3新型材料与T2纯铜板焊接后界面金属间化合物层平均厚度减小69％．且金属Bi未发生明显偏析，其力学性能得到明显提高。By hybrid alloying and ultrasonic vibration assisted casting method, a new low-temperature alloy material of Sn42Bi52ZnSCu0.7Y0.3 was prepared. By microstructure observation, melting and mechanical properties testing and analysis it is shown that the new material melting point ranges between 181.21-190.84℃, and the melting peak temperature is 187.37 ℃. Compared with conventional Sn42Bi58, the metal compound layer average thickness on the weld interface between the new material Sn42Bi52Zn5Cu0.7Y0.3 and T2 copper plate decreases by 69%, and the segregation of metal Bi does not obviously occur, of which the mechanical properties are improved significantly.

关 键 词：Sn42Bi52Zn5Cu0.7Y0.3低温合金 超声振动辅助铸造 合金化 金属间化合物 

分 类 号：TG249.9[金属学及工艺—铸造] TG27