新型高温钛合金BTi-62421s的铸造性能及力学性能  

Casting and Mechanical Properties of New High-Temperature BTi-62421 Titanium Alloy

作　　者：王晓林[1] 王韦琪[1] 赵芳利[1] 毛麒[1] 苏海军[1] 王磊华[1] 

机构地区：[1]宝鸡钛业股份有限公司,陕西宝鸡721014

出　　处：《铸造》2014年第9期948-950,共3页Foundry

摘　　要：研究了新型高温钛合金BTi-62421s的铸造性能及力学性能。结果表明:BTi-62421s合金流动性和充填性比ZTA2、ZTC4差,但优于Ti-55;凝固收缩特点与ZTC4相近,两者收缩率相当,均有集中缩孔倾向,收缩率小于Ti-55;抗裂性优于Ti-55,比ZTC4差;铸造组织为近α态,高温力学性能优异。Casting and mechanical properties of high-temperature titanium alloys BTi-62421 were studied. The results show that BTi-62421s alloy fluidity and filling are worse than ZTA2 and ZTC4, but better than Ti-55; solidification shrinkage characteristics are similar to the ZTC4, both concentration of shrinkage tendency exist, shrinkage rate is less than Ti-55; new high-temperature titanium alloy crack resistance is better than the Ti-55, less than ZTC4; as cast structure is e^-phase crystalline, and has excellent high temperature mechanical properties.

关 键 词：高温钛合金 铸造性能 BTi-62421s 

分 类 号：TG146.23[一般工业技术—材料科学与工程]