| 40Cr冲蚀与空蚀交互磨损试验研究 |
| |
| 引用本文： | 庞佑霞,刘厚才,朱宗铭,梁亮.40Cr冲蚀与空蚀交互磨损试验研究[J].润滑与密封,2011(8). |
| |
| 作者姓名： | 庞佑霞 刘厚才 朱宗铭 梁亮 |
| |
| 作者单位： | 长沙学院机电工程系;湖南科技大学机电工程学院; |
| |
| 基金项目： | 国家自然科学基金面上项目(50975032); 湖南省教育厅重点资助项目(10A009) |
| |
| 摘 要： | 对40Cr进行模拟化工泵叶轮流道内工况条件下的冲蚀与空蚀交互磨损试验,分析40Cr材料的抗交互磨损性能和冲蚀与空蚀交互磨损试件表面磨痕。结果表明:40Cr的冲蚀与空蚀交互磨损失重曲线分为孕育期、上升期、衰减期和稳定期。在孕育期中,材料失重量很小;在上升期中,材料的冲蚀与空蚀交互磨损失重量增加。40Cr材料的交互磨损特性是以微切削、犁削和脆性剥落为主,同时存在针眼和剥落坑。40Cr试样表面的冲蚀沟槽和空蚀坑主要沿水流线速度矢量的方向,但也存在一些与线速度成一定夹角的摩擦痕迹或沟槽,说明影响冲蚀与空蚀交互磨损的因素不仅是水流速度,还与沙粒运动轨迹、水流方向及冲蚀角度等有关。
|
| 关 键 词： | 冲蚀与空蚀 交互磨损 犁削 脆性剥落 影响因素 |
Experimental Study of Interactive Erosion and Cavitation Wears of 40Cr |
| |
| Pang Youxia Liu Houcai Zhu Zongming Liang Liang.Experimental Study of Interactive Erosion and Cavitation Wears of 40Cr[J].Lubrication Engineering,2011(8). |
| |
| Authors: | Pang Youxia Liu Houcai Zhu Zongming Liang Liang |
| |
| Affiliation: | Pang Youxia1 Liu Houcai2 Zhu Zongming1 Liang Liang1(1.Department of Mechanical and Electrical Engineering,Changsha University,Changsha Hunan 410003,China,2.College of Electromechanical Engineering,Hunan University of Science and Technology,Xiangtan Hunan 411201,China) |
| |
| Abstract: | The interactive erosion and cavitation wear experiments on 40Cr were performed with simulating the working conditions in the flow channel of chemical pump impellers.The anti-interactive wear performance of 40Cr and the surface wear scars of interactive wear specimens were analyzed.The results show the interactive erosion and cavitation wear weight loss curve of 40Cr is divided into the incubation period,the rising period,the decline period and the stable period.In the incubation period,the weight loss of ma... |
| |
| Keywords: | erosion and cavitation interactive wear ploughing brittle spalling influencing factors |
| 本文献已被 CNKI 等数据库收录！ |
|
