| Dry Friction Characteristics of Ti-6Al-4V Alloy under High Sliding Velocity |
| |
| 作者姓名： | QIU Ming ZHANG Yongzhen ZHU Jun YANG Jianheng |
| |
| 作者单位： | [1]School of Mechatronic Engineering, Henan University of Science and Technology, Luoyang 471003, China [2]Theory of Lubrication and Bearing Institute, Xi＇an Jiaotong University, Xi＇an 710049, China [3]School of Material Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China |
| |
| 摘 要： | Tribological behaviours of Ti-6Al-4V alloy pins sliding against GCr15 steel discs over a range of contact pressures （0.33-1.33 MPa） and sliding velocities （30-70 m/s） were investigated using a pin-on-disc tribometer under unlubricated conditions. The wear mechanisms and the wear transition were analyzed based on examinations of worn surfaces using SEM, EDS and XRD. When the velocity increases, the friction coefficient and the wear rate of the Ti-6Al-4V alloy show typical transition features, namely, the critical values of sliding velocities for 0.33 and 0.67 MPa are 60 and 40 m/s, respectively. The experimental results reveal that the tribological behaviours of Ti-6Al-4V alloys are controlled by the thermal-mechanical effects, which connects with the friction heat and hard particles of the pairs. A tribolayer containing mainly Ti oxides and V oxides is formed on the worn surface of Ti-6Al-4V alloy.
|
| 关 键 词： | 钛合金 干滑剂 摩擦性能 接触温度 磨损机理 |
| 收稿时间： | 2006-05-20 |
| 修稿时间： | 2007-04-14 |
Dry friction characteristics of Ti-6Al-4V alloy under high sliding velocity |
| |
| QIU Ming ZHANG Yongzhen ZHU Jun YANG Jianheng.Dry Friction Characteristics of Ti-6Al-4V Alloy under High Sliding Velocity[J].Journal of Wuhan University of Technology. Materials Science Edition,2007,22(4):582-585. |
| |
| Authors: | Qiu Ming Zhang Yongzhen Zhu Jun Yang Jianheng |
| |
| Affiliation: | (1) School of Mechatronic Engineering, Henan University of Science and Technology, Luoyang, 471003, China;(2) Theory of Lubrication and Bearing Institute, Xi’an Jiaotong University, Xi’an, 710049, China;(3) School of Material Science and Engineering, Henan University of Science and Technology, Luoyang, 471003, China |
| |
| Abstract: | Tribological behaviours of Ti-6Al-4V alloy pins sliding against GCr15 steel discs over a range of contact pressures(0.33-1.33 MPa)and sliding velocities(30-70 m/s)were investigated using a pin-on-disc tribometer under unlubricated conditions.The wear mechanisms and the wear transition were analyzed based on examinations of worn surfaces using SEM,EDS and XRD.When the velocity increases,the friction coefficient and the wear rate of the Ti-6Al-4V alloy show typical transition features,namely,the critical values of sliding velocities for 0.33 and 0.67 MPa are 60 and 40 m/s,respectively.The experimental results reveal that the tribological behaviours of Ti-6Al-4V alloys are controlled by the thermal-mechanical effects,which connects with the friction heat and hard particles of the pairs.A tribolayer containing mainly Ti oxides and V oxides is formed on the worn surface of Ti-6Al-4V alloy. |
| |
| Keywords: | Ti alloy dry sliding friction behavior contact temperature wear mechanism |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
|
