结果表明，魏氏组织针由多个块状的亚晶粒组成，亚晶粒边界由位错缠结而成，在亚晶粒内有较高的位错密度；
The results show that Widmansttten structure needle consists of many blocky subgrains that have higher dislocation density and subgrain boundary is made up of dislocation tangle.
阻尼性能提高是由于组织细化、界面增多以及位错增殖所致。
It is because of microstructure refinement, an increase in boundaries and dislocation multiplication.
受非马氏体组织的影响及可动位错密度降低的作用，屈服强度、屈强比随退火温度升高而升高。
The yield strength, yield ratio increase with the increase of annealing temperature, due to the impact of non-martensite and the decrease of movable dislocation density.
对组织的观察和位错密度的测量表明，该强化作用与位错强化模型的计算结果一致。
This increase in strength corresponds well to the calculation of a dislocation strengthening model using dislocation densities measured from TEM observations.
孪晶自身相互交割和位错的滑移相互协调，形成了细小的孪晶和胞状组织；
Twin-twin self-intersection and dislocation slipping were coordinated, the refined twins and cystiform microstructure were formed.
对拉伸断口附近显微组织的观察表明，前者基体中位错进一步增殖，后者则存在明显的位错环。
The microstructural observation near the fracture indicated that dislocations increased in the matrix of the former composite, while obvious dislocation loops were found in the latter.
冷变形提高了钢中位错密度，也加剧了位错分布的不均匀性，后者是预应变加速组织演变的直接原因。
Cold deformation results in increasing of dislocation density and inhomogeneous dislocation distribution, the latter is the direct reason for pre-strain to promote microstructural evolution.
其优良的性能得益于具有与细小析出相交互作用的高密度位错的超低碳针状铁素体组织。
The excellent properties of this steel are resulted from ultra-low carbon acicular ferrite with interaction of very fine precipitated particles and high-den…
其优良的性能得益于具有与细小析出相交互作用的高密度位错的超低碳针状铁素体组织。
The excellent properties of this steel are resulted from ultra-low carbon acicular ferrite with interaction of very fine preci…
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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