Ti-6.5Al-2.5Sn-4Zr-0.7Mo-1Nb-0.2Si合金的性能与显微组织  

Properties and Microstructure of TiBased Alloy of Ti_6.5Al_2.5Sn_4Zr_0.7Mo_1Nb_0.2Si

作　　者：许国栋[1,2] 王桂生[1,2] 萧今声[1,2] 

机构地区：[1]北京有色金属研究总院 [2]中国有色金属工业总公司

出　　处：《稀有金属》1998年第3期175-179,共5页Chinese Journal of Rare Metals

摘　　要：在实验室条件下，研究了Ｔｉ６．５Ａｌ２．５Ｓｎ４Ｚｒ０．７Ｍｏ１Ｎｂ０．２Ｓｉ合金的热处理、常温机械性能和显微组织。结果表明，合金的机械性能优异，达到了俄罗斯同等产品水平；合金显微组织是大量α相＋少量转变β相的两相组织，并阐述了机械性能和显微组织随热处理变化的规律。The influence of heattreatment on microstructure and mechanical properties at room temperature of Ti_6.5Al_2.5Sn_4Zr_0.7Mo_1Nb_0.2Si (BT18y) alloy were investigated. By means of TEM and X-ray techniques, the microstructure of the post annealing alloy was studied. The results show that the alloy has excellent mechanical properties at room temperature. The fine (α+β) microstructure which consists of about 90% of equixed αphase and a small amount of transformed βphase is obtained after annealing.

关 键 词：钛合金 热处理 显微组织 机械性能 

分 类 号：TG146.23[一般工业技术—材料科学与工程]