TEM observations of twin intersections in a Ti–47Al–2Cr–2Nb–0.1Y alloy compressed at room temperature
TEM observations of twin intersections in a Ti–47Al–2Cr–2Nb–0.1Y alloy compressed at room temperature
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室温压缩 Ti-47Al-2Cr-2Nb-0.1Y 合金孪晶交叉点的 TEM 观察
DOI：
10.1016/j.jallcom.2006.12.127
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
H. Ye
中科院分区：
文献类型：
--
作者：
Chunlin Chen;Wancong Lü;Yong Cui;L. He;H. Ye
Twin intersections in TiAl alloy compressed at room temperature were investigated by high-resolution electron microscopy (HREM). One incident twin (TI) was observed 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.
影响因子：
9.4
作者：
H. Y. Kim;K. Maruyama
通讯作者：
H. Y. Kim;K. Maruyama