证实了位错塞积的存在及其对微裂纹形核的促进作用。
This verifies the existence of dislocation pile-up and its stimulation to the nucleation of microcracks.
缺口试样在缺口的高应力集中效应下，加快疲劳裂纹形核过程。
The high stress concentration effect of notch can accelerate the process of fatigue crack nucleation in the notch specimen.
当腐蚀促进的位错发射和运动达到临界状态时，应力腐蚀裂纹形核和扩展。
Microcracks of SCC initiated when the corrosion-enhanced dislocation emission and motion reached a certain condition.
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