船用43CrNiSiMoV钢在热处理中的性能变化  

Performance of Marine 43CrNiSiMoV Steel in Heat Treatment Process

作　　者：刘善平[1] 马骋[2] 

机构地区：[1]江苏海事职业技术学院电气与自动化工程学院,江苏南京211170 [2]江苏海事职业技术学院船舶与海洋工程学院,江苏南京211170

出　　处：《铸造技术》2016年第12期2566-2567,共2页Foundry Technology

基　　金：江苏省职业教育教学改革研究课题(2013ZCZ49)

摘　　要：以正火态43CrNiSiMoV钢为实验对象,研究了消除热应力处理过程中温度和处理次数对其拉伸、冲击性能及耐腐蚀性能的影响。结果表明,当处理温度为540℃时,实验钢的屈服强度、抗拉强度、断面收缩率和冲击性能得到了较好的匹配;随着热处理次数的增加,其屈服强度、抗拉强度和冲击韧度有所下降,断面收缩率有所上升;实验钢具有较好的抵抗低温裂纹扩展的能力和抗硫化氢腐蚀性能。Taking normalized 43CrNiSiMoV steel as the research object, the influence of temperature and treatment numbers on the tensile properties, impact toughness and corrosion resistance of the steel were analyzed. The results show that, when heat treated at 540 ℃, the yield strength, tensile strength, reduction of area and impact toughness of the steel have a good match; by increasing the number of treatment cycles, the yield strength, tensile strength and impact toughness of the steel decreases but the reduction of area increases; the steel has good resistance on cracking propagation at low temperature and the good corrosion resistance on hydrogen sulfide.

关 键 词：43CrNiSiMoV钢 热处理温度 拉伸特性 冲击韧度 耐腐蚀性 

分 类 号：U668.2[交通运输工程—船舶及航道工程] TG161[交通运输工程—船舶与海洋工程]