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Addressing Retained Austenite Stability in Advanced High Strength Steels

机译：寻求先进的高强度钢中保留的奥氏体稳定性

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Advances in the development of new high strength steels have resulted in microstructures containing significant volume fractions of retained austenite. The transformation of retained austenite to martensite upon straining contributes towards improving the ductility. However, in order to gain from the above beneficial effect, the volume fraction, size, morphology and distribution of the retained austenite need to be controlled. In this regard, it is well known that carbon concentration in the retained austenite is responsible for its chemical stability, whereas its size and morphology determines its mechanical stability. Thus, to achieve the required mechanical properties, control of the processing parameters affecting the microstructure development is essential.
机译：新型高强度钢的发展的进展导致含有保留奥氏体的显着体积分数的微观结构。在紧张时，保留奥氏体对马氏体的转化有助于提高延展性。然而，为了从上述有益效果中获得，需要控制保留奥氏体的体积分数，大小，形态和分布。在这方面，众所周知，保留奥氏体中的碳浓度负责其化学稳定性，而其尺寸和形态决定了其机械稳定性。因此，为了达到所需的机械性能，控制影响微观结构发育的加工参数是必不可少的。

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