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个人信息Personal Information
副教授
博士生导师
硕士生导师
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：材料科学与工程学院
学科：材料加工工程
办公地点：大连理工大学铸造中工程心
电子邮箱：xsfu@dlut.edu.cn
TEM investigations on hydrogen induced phase transformation in Ti-6Al-4V alloys
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论文类型：期刊论文
发表时间：2010-10-01
发表刊物：ACTA METALLURGICA SINICA-ENGLISH LETTERS
收录刊物：SCIE、EI、Scopus
卷号：23
期号：5
页面范围：357-362
ISSN号：1006-7191
关键字：Ti-6Al-4V alloys; Martensitic transformation; Hydrogenation; Hydride
摘要：The TEM and HRTEM were utilized to investigate the phase transformation of hydrogenated Ti-6Al-4V alloys (0 wt pct-0.9 wt pct H) treated by annealing and quenching from beta field. The results indicate that the orthorhombic alpha '' martensite and beta phase appear progressively with the increase of hydrogen concentration. On the other hand, hydrides with sizes of 2-5 nm are observed in the specimens containing more than 0.6 wt pct hydrogen. The formation of alpha '' and twins can be attributed to the internal stress caused by solid solution of hydrogen and hydrides precipitation.