| 含纳米金刚石粉润滑脂对钢球接触疲劳的影响 |
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| 引用本文： | 张锋,宋宝玉,曲建俊,刘维民. 含纳米金刚石粉润滑脂对钢球接触疲劳的影响[J]. 哈尔滨工业大学学报, 2005, 37(10): 1321-1323,1432 |
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| 作者姓名： | 张锋 宋宝玉 曲建俊 刘维民 |
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| 作者单位： | 哈尔滨工业大学,机电工程学院,黑龙江,哈尔滨,150001;中国科学院兰州化学物理研究所,固体润滑国家重点实验室,甘肃,兰州,730000 |
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| 基金项目： | 中国科学院兰州化学物理研究所固体润滑国家重点实验室开放基金资助项目（0303）;航天创新基金资助项目. |
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| 摘 要： | 利用自制的球-棒疲劳试验机，研究了纳米金刚石粉对钢球接触疲劳寿命的影响．借助于扫描电子显微镜和能谱仪，分析了纳米金刚石粉抗滚动接触疲劳的机理．结果表明：与基础脂相比，添加纳米金刚石粉后钢球的疲劳寿命都得到了改善．利用微粒吸附作用、渗入作用和极压抗磨性能，解释了纳米金刚石粉提高钢球接触疲劳寿命的原因．
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| 关 键 词： | 纳米微粒 金刚石粉 接触疲劳 钢球 |
| 文章编号： | 0367-6234（2005）10-1321-03 |
| 收稿时间： | 2004-06-29 |
| 修稿时间： | 2004-06-29 |
Research on anti-rolling-contact fatigue of steel ball and rod performances of grease containing nano diamond particles |
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| ZHANG Feng,SONG Bao-yu,QU Jian-jun,LIU Wei-min. Research on anti-rolling-contact fatigue of steel ball and rod performances of grease containing nano diamond particles[J]. Journal of Harbin Institute of Technology, 2005, 37(10): 1321-1323,1432 |
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| Authors: | ZHANG Feng SONG Bao-yu QU Jian-jun LIU Wei-min |
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| Abstract: | Effects of nano diamond particles on contact fatigue life of steel ball were evaluated on a self-made ball-rod contact fatigue tester. The anti-fatigue mechanisms of diamond additive were analyzed by means of SEM and DEA. It was shown that, when the biphase liquid lubrication contained diamond, contact fatigue life was improved compared with that of base grease. Nanoparticle adsorption action, nanoparticle infiltration action and extreme pressure and anti-friction performance, explained well why diamond increased the contact fatigue life of steel ball. |
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| Keywords: | nano particles diamond contact fatigue steel ball |
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