从不同试验钢的显微组织、奥氏体体积分数、晶粒尺寸等方面,研究了Ni当量对00Cr13Co9Ni5Mo5马氏体时效不锈钢冲击韧性的影响.研究结果表明:Ni、Mn可扩大奥氏体区,随着Ni当量的增加,奥氏体体积分数明显上升,可显著提高材料的冲击韧性.
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