| NiCrBSi超音速火焰喷涂层在不同温度下的磨损行为 |
| |
| 引用本文： | 陈立佳,赵力东,王旭,周正,郭星晔,贺定勇.NiCrBSi超音速火焰喷涂层在不同温度下的磨损行为[J].焊接学报,2021,42(5):65-70. |
| |
| 作者姓名： | 陈立佳 赵力东 王旭 周正 郭星晔 贺定勇 |
| |
| 作者单位： | 广东省科学院智能制造研究所,广东省现代控制技术重点实验室,广州,510070;北京工业大学,北京,100124 |
| |
| 基金项目： | 广东省科学院建设国内一流研究机构行动专项资金项目(2021GDASYL-20210103092)；广东省科学院专项资金项目(2016GDASRC-0105)；广东省科学院实施创新驱动发展能力建设专项(2017GDASCX-0115，2018GDASCX-0115). |
| |
| 摘 要： | 采用超音速火焰喷涂在铸铁表面制备了NiCrBSi喷涂涂层,以研究其在不同温度下的摩擦磨损行为.?采用pin-on-disc试验设备在室温和300?℃下对NiCrBSi涂层进行了摩擦磨损试验,分析了温度对NiCrBSi涂层摩擦系数和磨损率的影响规律;采用XRD和SEM对NiCrBSi喷涂态涂层进行了微观组织结构分析;通过...
|
| 关 键 词： | 超音速火焰喷涂 微观组织结构 摩擦行为 磨损机制 |
| 收稿时间： | 2020-09-23 |
Wear behavior of NiCrBSi coatings produced by HVOF |
| |
| Affiliation: | 1.Institute of Intelligent Manufacturing, Guangdong Academy of Sciences, Guangzhou, 510070，China2.Beijing University of Technology, Beijing, 100124, China |
| |
| Abstract: | A NiCrBSi coating was produced on the surface of cast iron by high-velocity-oxygen-fuel spraying to investigate the wear behavior at different temperatures. The wear behavior was evaluated by pin-on-disc tester at room temperature and 300 ℃. The effect of temperature on friction coefficient and wear rate was analyzed. The phase and microstructure of the coating were analyzed by XRD and SEM. The worn surface and cross section of NiCrBSi coating were observed by SEM. The results showed that NiCrBSi coating was dense and exhibited typical lamellar structure. The coating was composed of γ-Ni, Cr7C3, Ni3B and CrB. The porosity was 1.11% and the hardness was 742 HV0.1±24 HV0.1. At room temperature, stick-slip phenomenon was observed. With the increase of temperature, the friction coefficient of NiCrBSi coating decreases, but the wear rate increases and the wear resistance decreases. The wear was mainly caused by abrasive wear and fatigue wear at both temperatures. With the increase of temperature, abrasive wear becomes more and more serious. |
| |
| Keywords: | |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《焊接学报》浏览原始摘要信息 |
|
点击此处可从《焊接学报》下载全文 |
|
