应变诱发马氏体首先在原奥氏体晶界和孪晶界形核。
These lath martensite first nucleates in parent austenite intergranular and twin boundary.
实验表明，珠光体分解在奥氏体晶界形核，铁素体和渗碳体具有位向关系。
Experiments show that pearlitic nucleus can form on the austenitic grain boundary, and there is the orientation relationship between ferrite and cementite also.
裂纹形核主要是通过位错堆积、晶界角源及弹性各向异性三种机理产生的。
Nucleation of crack is due to dislocation pile-up mechanism and elastic anisotropy mechanism.
多晶生长暂停拉伸时，新晶粒将在柱状晶顶部晶界夹角处形核并长大，而且新晶粒的晶格取向与原有晶粒的取向无关。
When pulling halts, the combination of grains occurs, and the lattice orientation of new grain is not related to the original grains.
对形变后的试样进行再结晶退火后发现，再结晶形核机制为晶界弓出形核，晶界弓出方向为储存能较高的晶粒。
Upon annealing of the deformed samples, nucleation takes place at the original grain boundaries a nd the nuclei grow into the local region with the highest stored energy.
对形变后的试样进行再结晶退火后发现，再结晶形核机制为晶界弓出形核，晶界弓出方向为储存能较高的晶粒。
Upon annealing of the deformed samples, nucleation takes place at the original grain boundaries a nd the nuclei grow into the local region with the highest stored energy.
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