The micro process of crack initiation and propagation in austempered ductile iron has been investigated by scanning electron microscope with a micro tensile stage.
用扫描电子显微镜及微拉伸台对奥氏体- 贝氏体球墨铸铁裂纹萌生、扩展的微观过程进行了跟踪观察。
It is shown that the proposed ductile fracture model can accurately and effectively predict the whole damage process of ductile metals including crack initiation, propagation and final fracture.
结果表明，该模型可很好地预测延性金属材料自裂纹萌生、扩展直至完全断裂的全过程。
It is shown that the proposed ductile fracture model can accurately and effectively predict the whole damage process of ductile metals including crack initiation, propagation and final fracture.
结果表明，该模型可很好地预测延性金属材料自裂纹萌生、扩展直至完全断裂的全过程。
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