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为了查明介稳相残留奥氏体及其组织特征对疲劳等性能的影响,作者用透射电镜观察分析了30CrMnSiNi2A钢等温淬火后,不同温度回火试样残留奥氏体的分布和分解特征,并就马氏体、奥氏体和碳化物三者间的取向关系进行了讨论。
In order to find out the effect of metastable austenite and its microstructure on fatigue properties, the author observed and analyzed the distribution and decomposition characteristics of retained austenite in tempered samples of 30CrMnSiNi2A steel after isothermal quenching with TEM. The orientation relationship between martensite, austenite and carbide is also discussed.