立方氮化硼表面硬化层的制备及性能  

Preparation and Properties of Hardened Surface Layers Containing Cubic Boron Nitride

作　　者：王钧石[1] 柳襄怀[2] 王曦[2] 陈元儒[1] 

机构地区：[1]西南交通大学材料科学与工程学院,四川成都610031 [2]中国科学院上海微系统与信息技术研究所离子束重点实验室,上海200050

出　　处：《机械工程材料》2003年第2期31-33,共3页Materials For Mechanical Engineering

基　　金：中国科学院上海微系统与信息技术研究所离子束重点实验室基金资助项目(100027)

摘　　要：用渗硼和新型的等离子体浸没式氮离子注入技术(PⅢ)对Cr12MoV钢进行复合处理,制备出了含有立方氮化硼的表面硬化层。经X光电子能谱和X射线衍射分析发现硬化层中的组织主要是立方氮化硼(c BN)、六方氮化硼(h BN)、FeB和Fe2B。在与单独渗硼处理的Cr12MoV钢试样进行对比时,对立方氮化硼表面硬化层进行了维氏显微硬度和滑动摩擦试验。结果表明:硬化层具有高达48GPa的高硬度和优良的摩擦性能。The hardened surface layers containing cubic boron nitride (cBN) phase on Cr12MoV steel were prepared by a double treatment combining boronizing and a new plasma immersion nitrogen ion implantation (PⅢ) technique. It was found by xray photoelectron spectroscopy (XPS) and xray diffraction (XRD) analysis that the main structures were cubic boron nitride (cBN), hexagonal boron nitride(hBN), FeB and Fe2B in the hardened surface layers. The hardness and tribological properties of the hardened surface layers were determined by Vickers micro hardness experiment and sliding friction experiment in comparison with the specimens of Cr12MoV steel treated alone by boronizing. The results indicated that the hardened surface layers had very high hardness up to 48GPa and very fine tribological properties.

关 键 词：立方氮化硼表面硬化层 渗硼 等离子体浸没式离子注入(PⅢ) 显微硬度 摩擦性能 

分 类 号：TG156.8[金属学及工艺—热处理]