The chief character of fracture is fatigue striation and dimple.
断口分析表明，合金低周疲劳断口的主要特征是平行的条纹及韧窝。
And formation of typical fatigue striation on fatigue crack steady propagation is difficult.
其疲劳裂纹的稳定扩展也较难形成典型的疲劳条带。
The fatigue fracture characteristics were fatigue striation, ductile microvoid, and quasi-cleavage-like fracture characteristic.
疲劳断裂特征为疲劳条纹、韧窝及类似准解理状形貌特征。
The striation spacing in heat affect zone and welded seam samples was wider than that in matrix sample, this shows that fatigue crack propagation...
焊缝区和热影响区试样的辉纹间距较基体区的大，说明裂纹扩展速率快，焊缝和热影响区的抗裂纹扩展性较基体差。
The striation spacing in heat affect zone and welded seam samples was wider than that in matrix sample, this shows that fatigue crack propagation...
焊缝区和热影响区试样的辉纹间距较基体区的大，说明裂纹扩展速率快，焊缝和热影响区的抗裂纹扩展性较基体差。
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