... 氢致准解理断口 hydrogen-embrittlement induced 沿晶断口 intergranular fracture 穿晶断口 transgranular fracture ...
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其冲击断口微观形貌由室温时的韧窝断口逐渐变为低温下的塑性沿晶断口。
The fracture appearance is dimple at room temperature, it changes into intercrystalline fracture at low-temperature.
研究表明，“沿晶”、“多边化”和“扇形解理花样”是稀土锆合金断口最常见的微观形貌特征；
The results show that the crack and the hole are the primary microdefect of fracture.
结果表明，造成主蒸汽滤网开裂的主要原因是晶界高温氧化，断口呈典型的沿晶开裂特征。
The results show that the main reason for the cracking was high temperature intergranular oxidation, with the fracture morphology being a typical intergranular cracking character.
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