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| 三牙轮钻头材料Ni65的冲蚀磨损机制研究 | |
| 引用本文： | 庞佑霞,陆由南,刘厚才,宋全胜.三牙轮钻头材料Ni65的冲蚀磨损机制研究[J].润滑与密封,2006(5):100-102. |
| 作者姓名： | 庞佑霞 陆由南 刘厚才 宋全胜 |
| 作者单位： | 1. 长沙学院机电工程系,湖南长沙,410000 2. 湖南科技大学机电工程学院,湖南湘潭,411201 3. 江钻股份有限公司,湖北武汉,430223 |
| 摘 要： | 针对三牙轮钻头流道内实际工况,研究了钻头材料N i65和对比材料N i67和N i60 35%WC的冲蚀磨损特性。结果表明:N i65和N i67的冲蚀磨损阶段分为跑合期和稳定期,N i65磨损机制主要是微切削,而N i67的磨损机制主要是疲劳损伤和微切削;而N i60 30%WC的冲蚀磨损阶段为跑合期与周期性的稳定磨损和严重磨损期,其磨损机制主要是硬质点的脱落和疲劳点蚀。在试验过程中均伴有空蚀磨损。 |
| 关 键 词： | 三牙轮钻头 冲蚀磨损 |
| 文章编号： | 0254-0150(2006)5-100-3 |
| 收稿时间： | 2005-07-11 |
| 修稿时间： | 2005年7月11日 |
Study on the Erosion Mechanism of the Tricone Bit's Material Ni65 |
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| Pang Youxia,Lu Younan,Liu Houcai,Song Quansheng.Study on the Erosion Mechanism of the Tricone Bit''''s Material Ni65[J].Lubrication Engineering,2006(5):100-102. | |
| Authors: | Pang Youxia Lu Younan Liu Houcai Song Quansheng |
| Abstract: | The erosion wear characteristics of Ni65 and contrastive materials Ni67 and Ni60 35%WC were studied according to the actual working conditions in the sprue of tricone bit.The results show that the erosion process of Ni65 and Ni67 is divided into running-in and stationary periods,while the erosion process of Ni60 35%WC is divided into running-in and recurrent stationary wear and severity wear periods.The main wear mechanism of Ni65,Ni67 and Ni60 35%WC is respectively micromachining,fatigue damage and micromachining,hard spots broking off and fatigue pitting.Cavitation wear is existed in the experiments. |
| Keywords: | Ni65 |
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