Directional solidification of Ti-45Al-8Nb-(W,B,Y) alloy

查看全文 作　　者：DING Xianfei LIN Junpin HE Jianping YE Feng CHEN [1]Guoliang

机构地区：[1]State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

出　　处：《Rare Metals》索引2010年第29卷第3期,共6页

基　　金：supported by the National Natural Science Foundation of China (No. 50771013) 摘　　要：Using a Bridgman vertical vacuum furnace,Ti-45Al-8Nb-(W,B,Y) (at.%) bars,which were prepared from a plasma arc melting (PAM) ingot,were directionally solidified at growth rates of 10,15,and 20 μm/s.Polysynthetic twinned (PST) crystal with an aligned lamellar microstructure was obtained at the growth rate of 15 μm/s because of high Nb addition.The principle of PST crystal growth and the effect of Nb element were discussed.The results of investigations on microstructure and micromechanical properties of the directionally solidified (DS) bars of Ti-45Al-8Nb-(W,B,Y) alloy are briefly summarized. 关键词：定向凝固合金 TI 微观力学性能晶体生长电弧熔炼等离子体调查结果

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Directional solidification of Ti-45Al-8Nb-(W,B,Y) alloy

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