Fe-0.48%V及Fe-1.69%V合金碳化物析出型渗碳(CD)  

Carbide Dispersion Carburization of Fe-0.48%V and Fe-1.69%V

作　　者：王殿梁[1] 刘杨[1] 郝士明[1] 赵刚[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2002年第9期854-857,共4页Journal of Northeastern University(Natural Science)

基　　金：辽宁省科学技术基金资助项目 (9810 3 0 0 3 0 1)

摘　　要：研究了Fe 0 48%V及Fe 1 69%V合金的CD渗碳 ,用金相显微镜及扫描电子显微镜分析了渗层的组织形貌 ,对表层进行了X射线衍射分析 ,确定了以上两种合金在 95 0℃渗碳的最佳碳势为 1 40 %C ,此碳势是渗层不出现Fe3 C组织的最高碳势 ,渗层组织为马氏体基体上分布弥散细小的等轴碳化物 V4C3 ,平均尺寸为 2 5 0nm·渗层最高硬度均超过了HM1 0 0 0 ,Fe 0 48%V合金的硬化层厚度为 1 60 0 μm ,Fe 1 69%V合金的硬化层厚度为 1 0 0 0 μm ,两种合金都具有极高的耐磨性 ,Fe 1 69%V合金的耐磨性超过了淬火加回火的Cr1 2MoV钢·Microstructure, hardness and wear rate of the CD layer on Fe 0 48%V and Fe 1 69%V alloys carburized at 950?℃ were studied by OM, SEM and X ray. The optional C content (1 40%C) was found out for the best carburization. At this C content, the CD layer containing martensite and dispersive V 4C 3 can be achieved and the average diameter of V 4C 3 is 250?nm. The hardness exceeds HM1?000. The carburized alloys of Fe 0 48%V and Fe 1 69%V were taken on wear test. It is shown that the wear resistance of the carburized Fe 1 69%V alloy is superior to the Cr12MoV quenched and tempered steel.

关 键 词：Fe-V合金 碳化物析出型渗碳 CD渗碳 碳势 硬度 耐磨性 铁钒合金 组织形貌 

分 类 号：TG156.81[金属学及工艺—热处理] TG1[金属学及工艺—金属学]