船用ZG14CrNi3MoV铸钢两相区热处理工艺研究  

Research on Two-phase Region Heat Treatment ofZ G14CrNi3MoV Marine Cast Steel

作　　者：戴乐 杨超飞 刘健 牛继承 DAI Le;YANG Chaofei;LIU Jian;NIU Jicheng(Naval Equipment Deputy Office of Luoyang Area,Luoyang 471023,China;Luoyang Ship Material Research Institute,Luoyang 471023,China)

机构地区：[1]海装驻洛阳地区军事代表室,河南洛阳471023 [2]中国船舶集团有限公司第七二五研究所,河南洛阳471023

出　　处：《材料开发与应用》2023年第3期69-72,104,共5页Development and Application of Materials

摘　　要：对比了“单相区淬火+两相区淬火+高温回火”和“单相区保温+缓冷进入两相区+高温回火”和“两相区直接淬火+高温回火”3种热处理工艺对船用ZG14CrNi3MoV铸钢显微组织和力学性能的影响。结果表明,ZG14CrNi3MoV铸钢采用“单相区淬火+两相区淬火+高温回火”工艺进行热处理后,组织为铁素体+回火索氏体混合组织,强韧性匹配良好。The effects of three heat treatment processes of the ZG14CrNi3MoV cast steel microstructure and mechanical proper⁃ties were compared,which were“single-phase zone quenching+two-phase zone quenching+high temperature tempering”,“single-phase zone insulation+slow cooling into two-phase zone+high temperature tempering”,“two-phase zone quenching+high temperature tempering”.The results show that the two-phase zone heat treatment process has a great influence on the mi⁃crostructure and mechanical properties of ZG14CrNi3MoV cast steel.The heat treatment process of“single-phase zone quench⁃ing+two-phase zone quenching+high temperature tempering”is adopted.The microstructure of cast steel is ferrite and tempered sorbite,and the strength and toughness match well.

关 键 词：铸钢 两相区 屈服强度 低温韧性 

分 类 号：TG142.1[一般工业技术—材料科学与工程]