论文部分内容阅读
本文探讨了ZG15MnMoVCu钢双相化处理的可能性及双相化处理工艺。通过亚温淬火处理,该钢的冲击韧性得到了明显提高。双相化处理前的预处理对冲击韧性有很大影响,其中以预淬火为最好。本文还对铸钢双相处理的强韧化机理进行了讨论。认为晶粒细化、板条马氏体的存在、马氏体与铁素体的相间分布、铁素体中含有高密度位错等的综合作用,是使钢获得较好的综合力学性能的原因。
This article explores the possibility of dual-phase treatment of ZG15MnMoVCu steel and dual-phase treatment process. By sub-temperature quenching, the impact toughness of the steel has been significantly improved. Pre-treatment before the dual-phase impact toughness has a great impact, of which the best pre-quenching. In this paper, the mechanism of strengthening and toughening of cast steel in dual phase treatment is also discussed. Considering that the grain refinement, the presence of lath martensite, the interphase distribution of martensite and ferrite, and the high density dislocation in ferrite, it is considered that the comprehensive mechanical properties of the steel are better the reason.