... grain boundary conduction 晶粒间界电导 grain boundary crack 晶粒间界开裂，晶粒间界裂缝 grain boundary diffusion model 晶粒间界搁散模型 ...
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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。
It is shown that the zigzag grain boundary may delay the initiation, growth and propagation of crack, as well as may also influence the crack morphology and the fracture mode markedly.
研究表明，弯曲晶界对裂纹的萌生、长大及扩展，对裂纹的形态及断裂方式，都有显著的影响。
The presence of grain boundary allotriomorphic ferrite can increase the compatible deformation capability of duplex microstructure, improve the crack initiation energy under impact loading;
适量仿晶界型铁素体的存在增加了复相组织的协调变形能力，提高了裂纹形成功；
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