一、前言 板条状马氏体是淬火钢中的重要组织形态。低碳钢淬火获得板条状马氏体组织,可以得到高强度、高韧性和高的耐磨性能。因此,近二十年来,国内外对板条状马氏体的组织形态、机械性能和回火转变进行过大量研究与此同时淬火低碳钢件也在许多机器和结构上得以应用。 First, the preface Lamellar martensitic hardened steel is an important organizational form. Mild steel quenched to obtain lath martensite, you can get high strength, high toughness and high wear resistance. Therefore, in recent two decades, lots of researches have been done on the morphology, mechanical properties and tempering transformation of lath-shaped martensite at home and abroad. Meanwhile, quenching low-carbon steel is also applied on many machines and structures.