Si、Mn元素对ZG06Cr13Ni4Mo组织及性能的影响研究  

Effect of Silicon and Manganese on Microstructure and Properties of ZG06Cr13Ni4Mo

作　　者：徐芳 宋蕾 王宇 高云保 赵岭 陈瑞 曹衡 王增睿 XU Fang;SONG Lei;WANG Yu;GAO Yun-bao;ZHAO Ling;CHEN Rui;CAO Heng;WANG Zeng-rui(Shenyang Aircraft Industries(group)Co.,Ltd.,Shenyang 110850,Liaoning,China;National Key Laboratory of Advanced Casting Technologies,Shenyang 110022,Liaoning,China)

机构地区：[1]沈阳飞机工业(集团)有限公司,辽宁沈阳110850 [2]高端装备铸造技术全国重点实验室,辽宁沈阳110022

出　　处：《铸造》2024年第2期167-173,共7页Foundry

基　　金：国家自然科学基金面上项目(52175352);“兴辽英才计划”项目(XLYC2008036);沈阳市中青年科技创新人才支持项目(RC220429)。

摘　　要：以ZG06Cr13Ni4Mo低碳马氏体不锈钢为原料,设计不同Si、Mn元素添加量,通过微观组织及力学性能检测,探究Si、Mn元素对该材料组织及力学性能的影响及作用机制,为超高水头水轮机用高强低碳马氏体不锈钢的制备及工程应用提供理论参考。试验结果表明:Si添加量为1.1wt%时,材料的强韧性最佳,力学性能指标为:Rm=850 MPa,Rp0.2=608 MPa,A=19.5%,Z=59%,Akv=73J;添加Mn元素可以在一定程度上提升ZG06Cr13Ni4Mo不锈钢的抗拉强度,材料的屈服强度会有所下降。Mn添加量为1.0wt%时,材料的强韧性最佳,力学性能指标为:Rm=845MPa,Rp0.2=546MPa,A=19%,Z=64%,Akv=105J。Taking ZG06Cr13Ni4Mo low carbon martensitic stainless steel as raw material,different additions of Si and Mn elements were designed.Through microstructure detection and theoretical reference of mechanical properties,the influence and mechanism of Si and Mn elements on the microstructure and mechanical properties of the material were explored,which provided reference for the preparation and engineering application of high strength low carbon martensitic stainless steel for ultra-high head turbine.The experimental results show that the strength and toughness of the material are the best when the Si content is 1.1 wt%,and the mechanical properties are R_(m)=850 MPa,R_(p0.2)=608 MPa,A=19.5%,Z=59%,Akv=73 J;The element Mn obviously improves the tensile strength of ZG06Cr13Ni4Mo stainless steel,but has little effect on the yield strength of the material.When the addition of Mn is 1.0 wt%,the strength and toughness of the material are the best,and the mechanical properties are R_(m)=845 MPa,R_(p0.2)=546 MPa,A=19%,Z=64%,Akv=105 J.

关 键 词：马氏体不锈钢 合金强化 显微组织 力学性能 

分 类 号：TG249[金属学及工艺—铸造]