稀土相对Ti-5.6Al-4.8Sn-2Zr-1Mo-0.32Si-1Nd钛合金晶粒长大的阻碍作用  

Retardation Effect of Rare Earth-Rich Phase to Grain Growth of Ti-5.6Al-4.8Sn-2Zr-1Mo-0.32Si-1Nd High Temperature Alloy

作　　者：李阁平[1] 李东[1] 刘羽寅[1] 王青江[1] 关少轩[1] 李庆春[2] 

机构地区：[1]中国科学院金属研究所,辽宁沈阳110015 [2]哈尔滨工业大学,黑龙江哈尔滨150001

出　　处：《中国稀土学报》2000年第4期341-343,共3页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金!资助项目 (5 96 0 10 10 )

摘　　要：对Ti 5 6Al 4 8Sn 2Zr 1Mo 0 32Si 1Nd合金β相区不同热处理样品的分析表明 ,在EMP 810Q电子探针仪的精度范围内 ,晶界无元素偏聚。阻止晶粒长大的主要原因是稀土相颗粒对晶界移动的阻碍作用。The Ti 5.6Al 4.8Sn 2Zr 1Mo 0.32Si 1Nd(Ti 60) high temperature titanium alloy heat treated in β phase region was studied. The results of electronic probe analysis show that no elemental accumulation at grain boundaries is detected by EMP 810Q instrument. The main reason for obstruction of grain growth is that the rare earth rich phases hinder the movement of grain boundaries.

关 键 词：稀土 钛合金 晶粒长大 β相区 热处理 

分 类 号：TG146.23[一般工业技术—材料科学与工程]