The Structure and Mechanical Properties of Cr4Mo4V Steel Treated by PIII Carbonitriding
The Structure and Mechanical Properties of Cr4Mo4V Steel Treated by PIII Carbonitriding作者机构:Harbin Institute of TechnologyHarbin 150001China
出 版 物:《稀有金属材料与工程》 (Rare Metal Materials and Engineering)
年 卷 期:2012年第41卷第S1期
页 面:176-179页
核心收录:
学科分类:080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0802[工学-机械工程] 080201[工学-机械制造及其自动化]
基 金:supported by NSFC(51001039) National Basic Research Program of China(No.2007CB607602) The Program of Excellent Teams of Harbin Institute of Technology Science Found for Distinguished Yong Schoolars of Heilongjiang Province(JC200901)
主 题:Cr4Mo4V steel PBII carbonitriding hardness wear resistance
摘 要:The composition and structure of PIII(plasma immersion ion implantation)carbonitrided Cr4Mo4V steel were analyzed using X-ray photoelectron spectroscopy(XPS),X-ray diffraction(XRD),optical microscopy(OM)and *** results indicate that the nitride and carbide are dispersion phase precipitation and except formation of compound other implantation atoms dissolve into martensite *** total concentration of carbon and nitrogen is about 30 at%near the surface,and still keeps at about 20 at%even at the depth of 8μ*** effect of treatment temperature,implantation time and ratio of N2 to CH4 on the hardness and wear resistance of carbonitrided layer are *** is found that the hardness of Cr4Mo4V steel increases after *** highest hardness of samples is 22.3 GPa,which is about 1.8 times than initial *** dry-wear resistance of the samples is also improved after treatment,and the sample with higher hardness shows the better wear resistance.