| 气体渗氮对中碳车轴钢超长寿命疲劳性能的影响 |
| |
| 引用本文： | 鲁连涛,张继旺,崔国栋,沈训梁,张卫华.气体渗氮对中碳车轴钢超长寿命疲劳性能的影响[J].北京科技大学学报,2011,33(6):709-714. |
| |
| 作者姓名： | 鲁连涛 张继旺 崔国栋 沈训梁 张卫华 |
| |
| 作者单位： | 1. 西南交通大学牵引动力国家重点实验室,成都,610031
2. 西南交通大学材料科学与工程学院,成都,610031 |
| |
| 基金项目： | 国家重点基础研究发展规划资助项目(No.2007C714705); 国家重点实验室自主研究课题(No.2009TPL_T04); 中央高校基本科研业务费专项资金资助项目(No.SWJTU09CX060) |
| |
| 摘 要： | 研究了气体渗氮在材料表面层由表及里逐次形成的氧化物层、氮化物层及N固溶层对中碳车轴钢超长寿命旋转弯曲疲劳性能的影响.与未处理试样相比,带有氧化物层、去除氧化物层及去除氮化物层的渗氮试样的疲劳强度逐级提高.去除氧化物层和去除氮化物层的试样在超长寿命区分别发生次表面和内部破坏.通过断口观察和断裂分析,阐明了渗氮处理材料的表面层对超长寿命疲劳性能的影响.
|
| 关 键 词： | 碳钢 渗氮 疲劳性能 疲劳强度 表面层 |
Effect of gas nitriding on the fatigue properties of medium carbon railway axle steel in a very high cycle regime |
| |
| LU Lian-tao,ZHANG Ji-wang,CUI Guo-dong,SHEN Xun-liang,ZHANG Wei-hua.Effect of gas nitriding on the fatigue properties of medium carbon railway axle steel in a very high cycle regime[J].Journal of University of Science and Technology Beijing,2011,33(6):709-714. |
| |
| Authors: | LU Lian-tao ZHANG Ji-wang CUI Guo-dong SHEN Xun-liang ZHANG Wei-hua |
| |
| Institution: | LU Lian-tao1) Wingdingsj,ZHANG Ji-wang1),CUI Guo-dong2),SHEN Xun-liang1),ZHANG Wei-hua1)1) State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China2) School of Material Science and Engineering,China |
| |
| Abstract: | After gas nitriding three layers are formed on the surface of medium carbon railway axle steel from the exterior to interior,they are oxide layer,nitride layer and N-diffusion layer respectively.The effect of the three surface layers on the rotary bending fatigue properties of the steel was investigated in a very high cycle regime.Compared with the fatigue strength of untreated specimens,the strengths of nitrided specimens with the oxide layer,the specimens from which the oxide layer was removed and the spe... |
| |
| Keywords: | carbon steel nitriding fatigue properties fatigue strength surface layers |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
