30CrMnSi钢离子渗氮-激光淬火复合处理改性层的性能  

Properties of modified layer treated by ion nitriding and laser quenching on 30CrMnSi steel

作　　者：李玲 刘旭科 孟庆宇 刘少军 李陶陶 高阳 Li Ling;Liu Xuke;Meng Qingyu;Liu Shaojun;Li Taotao;Gao Yang(Shanxi Aerospace Qinghua Equipment Co.,Ltd.,Changzhi Shanxi 046012,China;Rocket Army Equipment Department Located in Changzhi Military Representative Office,Changzhi Shanxi 046012,China)

机构地区：[1]山西航天清华装备有限责任公司,山西长治046012 [2]火箭军装备部驻长治地区军事代表室,山西长治046012

出　　处：《金属热处理》2023年第8期185-189,共5页Heat Treatment of Metals

摘　　要：为了获得一种耐蚀性和耐磨性兼具的表面改性工艺,对30CrMnSi钢离子渗氮-激光淬火复合处理工艺进行了研究,先对试件进行离子渗氮处理,再使用激光扫描表面进行淬火处理,随后在试件上线切割标准检测试样,进行显微组织观察、硬度检测、摩擦磨损和耐蚀试验。结果表明,离子渗氮-激光淬火复合处理试样显微组织由表面隐晶马氏体组织逐渐过渡为心部回火索氏体组织,改性层厚度达到离子渗氮处理的2倍以上,表面硬度可提高50 HV;离子渗氮-激光淬火复合处理工艺有效提升了次表层组织的硬度和厚度,能够提高材料的耐磨损性能;离子渗氮-激光淬火复合处理改性层的耐蚀性相较于离子渗氮处理的较差。In order to obtain a surface modification process with both corrosion resistance and wear resistance,the composite treatment of ion nitriding and laser quenching of 30CrMnSi steel was researched.Firstly,the specimen was ion nitrided,and then it was quenched by using laser scanning surface.The standard test specimens were processed using the wire cutting method,the microstructure observation,hardness test,friction wear and corrosion resistance tests were carried out.The results show that after ion nitriding and laser quenching,the microstructure is cryptocrystalline martensite on the surface and gradually transforms into tempered sorbite in the core,the thickness of the composite modified layer is two times that of the ion nitrided,and the surface hardness is increased by 50 HV.The composite treatment can effectively improve the hardness and thickness of the subsurface structure,and improve the wear resistance of the material.Compared with the single ion nitrided specimen,the corrosion resistance of the composite modified layer is poorer.

关 键 词：离子渗氮-激光淬火复合处理 30CRMNSI钢 改性层 显微组织 耐磨性 

分 类 号：TG162.79[金属学及工艺—热处理]