38CrMoAl渗氮钢表面镀铁及渗硼行为的研究  

Research on Iron Plating and Boronizing Behavior of Nitrided 38CrMoAl Steel

作　　者：富玉竹 王戈[1] 佟伟平 FU Yu-zhu;WANG Ge;TONG Wei-ping(The Key Laboratory of the Ministry of Education for Materials Electromagnetic Process Research,Northeastern University,Shenyang 110819,China;Liaoning Petrochemical Vocational and.Technical College,Jinzhou 121001,China)

机构地区：[1]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110819 [2]辽宁石化职业技术学院,辽宁锦州121001

出　　处：《稀有金属与硬质合金》2021年第1期83-87,共5页Rare Metals and Cemented Carbides

基　　金：辽宁石化职业技术学院课题(LSHYY1901)。

摘　　要：以38CrMoAl钢为研究对象,对其表面分别进行渗氮、镀铁以及渗硼处理。利用X射线衍射仪、光学显微镜、显微硬度计对渗氮层、镀铁层以及渗硼层进行表征分析。结果表明,采用镀铁和渗硼相结合的方法,可获得100μm厚的渗硼层,仅由Fe_(2)B单相组成,呈针齿状楔入基体,与基体牢固结合。38CrMoAl渗氮钢经镀铁渗硼处理后,其表面硬度得到显著提高,高达1700 HV,明显高于普通氮化处理的38CrMoAl钢,从而达到了提高所修复材料表面性能的目的。Taking 38 CrMoAl steel as the research object,its surface was treated with nitriding,iron plating and boronizing,respectively.The nitrided layer,iron-plated layer and boronized layer were characterized and analyzed by X-ray diffractometer,optical microscope and microhardness tester.The results show that the boronized layer with thickness of 100μm can be obtained by the method of combining iron plating and boronizing,and it is composed of Fe_(2)B single phase,which is wedged into the matrix in the shape of needle teeth and firmly combined with the matrix.The surface hardness of nitrided 38 CrMoAl steel is significantly improved to 1700 HV after iron plating and boronizing treatment,which is much higher than that of 38 CrMoAl steel with ordinary nitriding treatment,thus achieving the purpose of improving the surface performance of the repaired material.

关 键 词：38CRMOAL钢 镀铁 渗硼 渗氮 修复材料 硬度 

分 类 号：TG174.4[金属学及工艺—金属表面处理]