Bainitic bearing steel of GCr15Si1Mo has been selected as the testing material in this paper. The point rolling contact fatigue experiments are carried out under a well lubricated condition with/without oil lubrication condition. The steel with different volume fractions of carbide are tested. The surface morphology and the distribution of carbides in microstructure of the samples before and after rolling contact fatigue test are observed by scanning electron microscopy. The rolling fatigue properties of these specimens are determined by the Weibull plots. The results show that the rolling fatigue property of the specimen with 1.9 vol.% carbide is superior to the specimen of 5.1 vol.% carbide without lubrication condition. However the order of quality of rolling fatigue property under a well oil lubricated condition of the specimen, from best to the worst is:the specimen without carbide, the specimen with 5.1 vol.% carbide and with 1.9 vol.% carbide. The carbide is easy to be the rolling fatigue crack source as it is a hard phase in matrix of the steel. Then the specimen without carbide shows the best rolling fatigue property. The pits are formed on the surface of the sample after the carbides are fallen off, which increase the adhesive force between the lubricating oil and the surface of specimen. This is beneficial to increasing the oil film thickness during the process of test. Therefore, the rolling contact fatigue life of the specimen is improved.
[1] 单珺,郑春雷,张福成,等. GCr15SiAlMo贝氏体轴承钢球化退火工艺研究[J]. 机械工程学报,2015,51(4):47-54. SHAN Jun,ZHENG Chunlei,ZHANG Fucheng,et al. Study on spheroidizing annealing of GCr15SiAlMo bainitic bearing steels[J]. Journal of Mechanical Engineering,2015,51(4):47-54.
[2] ZHU Mingliang,XUAN Fuzhen. Fatigue crack initiation potential from defects in terms of local stress analysis[J]. Chinese Journal of Mechanical Engineering,2014,27(3):496-503.
[3] 王煦,娄德成,高占军,等. Zr基大块非晶合金制备轴承滚动体的应用研究[J].燕山大学学报,2005,29(2):169-173. WANG Xu,LOU Decheng,GAO Zhanjun,et al. Application of Zr-based bulk metallic glass for bearing rollers[J].Journal of Yanshan University,2005,29(2):169-173.
[4] 赵佳莉,杨志南,张福成. 70Si3Mn钢中无碳化物贝氏体组织及其性能研究[J]. 燕山大学学报,2015,39(3):199-205. ZHAO Jiali,YANG Zhinan,ZHANG Fucheng. Study on carbide-free bainite microstructure and mechanical properties of 70Si3Mn steel[J]. Journal of Yanshan University,2015,39(3):199-205.
[5] 张福成,杨志南,康杰. 铁路辙叉用贝氏体钢研究进展[J]. 燕山大学学报,2013,37(1):1-6. ZHANG Fucheng,YANG Zhinan,KANG Jie. Research progress of bainitic steel used for railway crossing[J]. Journal of Yanshan University,2013,37(1):1-6.
[6] BHADESHIA H. Steels for bearings[J]. Progress in Materials Science,2012,57(2):268-435.
[7] 邵尔玉,王长生,郑世安,等. 表层残余奥氏体和碳化物提高渗碳齿轮接触疲劳强度的研究和应用[J]. 金属热处理学报,1989,10(1):31-43. SHAO Eryu,WANG Changsheng,ZHENG Shian,et al. Study on improving rolling contact fatigue strength for carburizing gears with retained austenite and carbide in their case and its application[J]. Transactions of Materials and Heat Treatment,1989,10(1):31-43.
[8] CUI Huawei,CUI Xiufang,WANG Haidou,et al. Effects of service condition on rolling contact fatigue failure mechanism and lifetime of thermal spray coatings-a review[J]. Chinese Journal of Mechanical Engineering,2015,28(1):132-139.
[9] 史修江,王黎钦. 基于拟动力学的航空发动机主轴滚子轴承热弹流润滑分析[J]. 机械工程学报,2016,52(3):86-92. SHI Xiujiang,WANG Liqin. TEHL analysis of aero-engine mainshaft roller bearing based on quasi-dynamics[J]. Journal of Mechanical Engineering,2016,52(3):86-92.
[10] ANDREASON S,LUND T B,Ball-bearing endurance testing considering Elastohydro-dynamic lubrication[J]. Inst. Mech. Eng.,1972,636:138-141.
[11] BOWER A F. The influence of crack face friction and trapped fluid on surface initiated rolling contact fatigue cracks[J]. J. Tribol. Trans. ASME,1988,110(4):704-711.
[12] 但锐,张明,郑春雷,等. 氢对贝氏体辙叉钢摩擦磨损行为的影响[J]. 机械工程学报,2012,48(20):33-36. DAN Rui,ZHANG Ming,ZHENG Chunlei,et al. Effects of hydrogen on wear behavior of bainitic steel used for crossing[J]. Journal of Mechanical Engineering,2012,48(20):33-36.
[13] 王燕霜,袁倩倩,曹佳伟,等. 特大型双排四点接触球轴承承载能力的研究[J]. 机械工程学报,2014,50(9):65-70. WANG Yanshuang,YUAN Qianqian,CAO Jiawei,et al. Research on static load-carrying capacity of large size double row four-point contact ball bearings[J]. Journal of Mechanical Engineering,2014,50(9):65-70.
[14] 中华人民共和国国家发展和改革委员会. JB/T 10510-2005滚动轴承材料接触疲劳试验方法[S]. 北京:中国标准出版社,2005. National Development and Reform Commission of the People's Republic of China. JB/T 10510-2005 Test method of material of rolling bearings contact fatigue[S]. Beijing:Standard Press of China,2005.
[15] 赵永翔,梁红琴. 基于两参数Weibull分布的概率疲劳S-N曲线模型[J]. 机械工程学报,2015,51(20):208-212. ZHAO Yongxiang,LIANG Hongqin. Modeling of the probabilistic fatigue S-N curves using the two parameter Weibull distribution[J]. Journal of Mechanical Engineering,2015,51(20):208-212.
[16] BORMETTI E,DONZELLA G,MAZZU A. Surface and subsurface crack s in rolling contact fatigue of hardened components[J]. Tribology Trans,2002,45(3):274-283.
[17] NELIAS D,DUMOUNT M L,CHAMPIOT F,et al. Role of inclusions,surface roughness and operating conditions on rolling contact fatigue[J]. J. Tribology,Tran. ASM E,1999,121:240-251.
[18] RINGSBERG J W,BERGKVIST A. On propagation of short rolling contact fatigue cracks[J]. Fatigue and Fracture of Engineering Materials and Structures,2003,26(10):969-983.
[19] DIKSHIT V A,CLAYTON P,STEELE R K,et al. A simple material model for water-lubricated rolling contact fatigue of eutectoid steels[J]. Lubrication Engineering,1992,48(7):606-614.
[20] 关健,王家序,韩彦峰,等. 谐波减速器柔性轴承混合润滑分析[J]. 摩擦学学报,2016,36(2):153-160. GUAN Jian,WANG Jiaxu,HAN Yanfeng,et al. Analysis on mixes lubrication of harmonic reducer flexible bearing[J]. Tribology,2016,36(2):153-160.