N^+注入W18Cr4V钢磨损性能的研究  

Study on Wear Resistance of N+ Implanted W18Cr4V Steel

作　　者：李军伟[1] 张平[2] 

机构地区：[1]装甲兵工程学院材料科学与工程系 [2]中国机械工程学会表面工程研究所

出　　处：《中国表面工程》2001年第1期27-30,共4页China Surface Engineering

基　　金：国家自然科学基金资助项目!(59971065)

摘　　要：W18Cr4V高速钢是一种广泛应用的刀具钢，为进一步提高其使用寿命，应用CG－60 型离子注入机对W18Cr4V高速钢进行了氮离子注入，得到一系列剂量的氮离子注入层，对注 氮层的磨损性能进行研究。XRD分析表明，氮离子注入W18Cr4V钢在部分基体表层形成了CrN 、ε–FeN和（Cr，Fe）2N1-x等相；表层显微硬度也有较大提高；磨损试验表明，氮离子的 注入显著提高了高速钢基体的耐磨性。还对耐磨性提高的机理进行了讨论。The high-speed steel of W18Cr4V is widely used for cutting tools in mac hining. In order to increase its service life, nitrogen ions were implanted into the W18Cr4V steel with CG-60ion implantation machine and different N+implanted layes with various doses were obtained.The results of XRD analysis showed that C rN,ε-FeN and (Cr,Fe)2N1-x were formed in the nitrogenimplanted layers. The supe rficial microhardness was remarkably raised. Wear tests showed that the wear res istance of the high-speed steel was greatly improved by nitrogen implantaion.The mechanism of wear resistance improvement was also discussed.

关 键 词：氮离子注入 高速钢 磨损 

分 类 号：TG156.8[金属学及工艺—热处理] TG142.45[金属学及工艺—金属学]