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The results showed that strength, ducitlitity and fracture toughness were lowered caused by hydrogen attack for Cr-Mo steel. The fracture mechanism was also changed by hydrogen attack, in which dimple translated to embrittlement.
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结果表明,氢蚀使Cr-Mo钢强度、塑性和断裂韧性均降低,也使断裂机制由韧窝型转变为解理脆性,氢蚀使疲劳裂纹扩展速率增加,门槛值降低。
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