Tem observations show that with decreasing the temperature, the inhomogeneity of the dislocation distribution near tensile fracture surfaces is increased.
TEM观察表明，随着试验温度的降低，拉伸断口附近位错分布不均匀性增大。
2
Hydroxyapatite (ha) whisker has lower dislocation density and higher tensile strength, therefore it could be used as toughening material in bioceramic.
羟基磷灰石(HA)晶须具有较低的位错密度，较高的抗拉性能，可用作生物陶瓷的增韧材料。
3
The evolution of deformation dislocation structure during the tensile loading was examined by transmission electron microscopy in the tempered martensite of low and middle carbon alloy steels.