... grain-boundary flow || 晶界流变 grain-boundary fracture || 晶界断裂 grain-boundary impurity concentration || 界杂质浓度 ...
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The results showed that the grain boundary cohesion become weaker and intergranular fracture became dominant with the increasement of superplastic deformation temperature.
结果表明，变形温度愈高，晶界结合强度愈低，沿晶断裂愈明显，晶界滑动愈易实现；
The results show that main cause of conchoidal fracture forming is that composition segregation in solidification grain boundary of casting steel reduces the resistance of crack propagation.
结果表明，沿一次晶晶界的成分偏析对裂纹扩展阻力的降低作用是铸钢中贝壳状断口形成的主要原因。
The deep and large cavities are formed on fracture surface and grain boundary sliding and intergranular fracture characteristic is obvious on the optimal superplastic deformation condition.
在最佳超塑性条件下，断口中形成了大而深的空洞，晶界滑动和晶间断裂特征明显。
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