In this study, the progression of martensite tempering as a function of tempering parameter has been investigated using instrumented nanoindentation. Three distinct stages of tempering related to the carbon segregation, carbide nucleation, and Ostwald ripening were identified. During the second tempering stage, the nanohardness achieves a plateau which is attributed to the change of carbide morphology, dissolution of intra-lath carbides, and growth of inter-lath and block boundary carbides.

中文翻译：

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马氏体回火过程中瞬态自然纳米软化的演变

在这项研究中，已使用仪器化的纳米压痕技术研究了马氏体回火随回火参数变化的过程。确定了与碳偏析，碳化物成核和奥斯特瓦尔德熟化有关的三个不同的回火阶段。在第二回火阶段，由于碳化物形态的变化，板条内碳化物的溶解以及板条间和块状边界碳化物的生长，纳米硬度达到了平稳状态。