TEM observations of twin intersections in a Ti-47Al-2Cr-2Nb-0.1Y alloy compressed at room temperature
文献类型:期刊论文
作者 | C. L. Chen ; W. Lu ; Y. Y. Cui ; L. L. He ; H. Q. Ye |
刊名 | Journal of Alloys and Compounds |
出版日期 | 2008 |
卷号 | 454期号:1-2页码:201-205 |
ISSN号 | 0925-8388 |
关键词 | intermetallics atomic scale structure transmission electron microscopy deformation twins mechanical-properties propagation microstructure |
中文摘要 | Twin intersections in TiAl alloy compressed at room temperature were investigated by high-resolution electron microscopy (HREM). One incident twin (TI) was observ -d to divide into three thin twin bands and leave several superlattice intrinsic stacking faults (SISFs) in the barrier twin (TB). It was a process related. to the dislocation dissociation: (1/2)[112] -> (1/6)[112] + SISF + (1/6)[112] + SESF + (1/6)[112]. The nucleation of type-I twin intersection was also observed. The incident twin was found to be a bundle of SISFs, instead of a perfect twin lath. In addition, a triangular striated structure around type-I twin intersection was examined by HREM. The formation mechanism of this triangular striated structure and the related dislocation reactions were discussed. (c) 2007 Elsevier B.V. All rights reserved. |
原文出处 | |
公开日期 | 2012-04-13 |
源URL | [http://210.72.142.130/handle/321006/32661] |
专题 | 金属研究所_中国科学院金属研究所 |
推荐引用方式 GB/T 7714 | C. L. Chen,W. Lu,Y. Y. Cui,et al. TEM observations of twin intersections in a Ti-47Al-2Cr-2Nb-0.1Y alloy compressed at room temperature[J]. Journal of Alloys and Compounds,2008,454(1-2):201-205. |
APA | C. L. Chen,W. Lu,Y. Y. Cui,L. L. He,&H. Q. Ye.(2008).TEM observations of twin intersections in a Ti-47Al-2Cr-2Nb-0.1Y alloy compressed at room temperature.Journal of Alloys and Compounds,454(1-2),201-205. |
MLA | C. L. Chen,et al."TEM observations of twin intersections in a Ti-47Al-2Cr-2Nb-0.1Y alloy compressed at room temperature".Journal of Alloys and Compounds 454.1-2(2008):201-205. |
入库方式: OAI收割
来源:金属研究所
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