论文成果
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
- 文献类型：J
- 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.
