用透射电镜观察了第二阶段蠕变过程位错亚结构的变化。
The dislocation substructure during secondary stage of creep has been examined by TEM.
缺陷组态直接涉及到结构材料的力学性能，特别是位错亚结构(DSS)为最重要的缺陷组态中的第一个。
The defect configuration relates directly to the mechanical behaviour of structural materials. Especially, dislocation substructure, DSS, is one of the most important configurations.
实验结果表明，金刚石晶体中存在有位错、亚结构及包裹体等缺陷。
The results show that there do exist some defects in the diamonds such as dislocation, substructure, inclusion, etc.
在基体与析出相的界面上存在高密度位错堆积，从而引起基体金属亚结构细化。
High density dislocation pile-up lies in the interface of the matrix and the second phase, which induces the sub-structure fining of the matrix.
结果表明，随着亚温淬火温度的升高，双相组织中马氏体的亚结构由孪晶型变成位错型，两相的变形能力和拉拔性能都得到改善。
Mecrostructure and mechanical properties of 20SiMnTi steel have been studied and analyzed when treated by different heat treatment process, by changing the sub-critical quenching temperatures.
结果表明，随着亚温淬火温度的升高，双相组织中马氏体的亚结构由孪晶型变成位错型，两相的变形能力和拉拔性能都得到改善。
Mecrostructure and mechanical properties of 20SiMnTi steel have been studied and analyzed when treated by different heat treatment process, by changing the sub-critical quenching temperatures.
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