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8.1 引言马氏体是强度很高的相,但通常也很脆,因此需要在150—700℃范围内热处理以调整其力学性能。对这种称为回火的过程虽然只是近年来才有详细的了解,但它是用于钢的最古老的热处理方法之一。马氏体本质上是碳在铁中的高度过饱和的固溶
8.1 Introduction Martensite is a very high strength phase, but it is usually very brittle and needs to be heat treated at 150-700 ° C to adjust its mechanical properties. Although this process known as tempering is only known in detail in recent years, it is one of the oldest heat treatment methods for steel. Martensite is essentially a highly supersaturated solution of carbon in iron