Cu对牙科用Ti-10Mo合金组织和硬度的影响  

Effect of Cu on Microstructure and Hardness of Ti-10Mo Dental Alloy

作　　者：丁宇邹[1] 朱达川[1] 葛向南[1] 

机构地区：[1]四川大学材料科学与工程学院,四川成都610065

出　　处：《热加工工艺》2012年第20期33-36,共4页Hot Working Technology

摘　　要：采用WS-4型非自耗电弧炉制备了牙科用Ti-10Mo-xCu合金系,通过显微组织、X射线衍射仪和数字式显微硬度计,研究了Cu元素对亚稳β钛合金Ti-10Mo的组织和力学性能。结果表明:该系列合金在铸态由β相主相、少量α、α'和α"、淬火ω相组成;随着Cu含量的增加,合金的晶粒明显细化;时效后,亚稳β相析出较多的α相和Ti2Cu;当Cu含量为3%时,合金具有最好的力学性能。A series of Ti-10Mo dental alloys with different Cu content （Ti-10Mo-xCu） were melted in WS-4 arc furnace. The effects of Cu on the phase and mechanical property of the metastable B-titanium alloy Ti-10Mo were investigated by mircrostructure observation, X-ray diffraction and digital microhardness tester. The results show that the series of casting alloys are dominated by βphase and a small amount of α, α′, and α″quenching 00 phase. More pronounced refinement is achieved as Cu content increasing. A great amount of α phase and Ti2Cu precipatitate from the metastableβ phase by aging treatment. The alloy with 3% Cu has the best comprehensive mechanical properties.

关 键 词：TI-MO合金 铜 显微组织 硬度 

分 类 号：TG230.2[金属学及工艺—铸造] TB357.5[一般工业技术—材料科学与工程]