表面溫度和摩擦學特性的影響
(1. 西安交通大學 材料科學與工程學院，西安 710049；
2. 河南科技大學 材料科學與工程學院，洛陽 471003)
摘 要:
關鍵字: 鉻青銅/黃銅配副；電流密度；表面溫度；摩擦學特性
tribology behavior of chromium bronze/brass couple
QIU Ming2, NIU Yong-ping2, HOU Ming2
（1. School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China;
2. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China）
Abstract:By using self-made pin-disk tester, the surface temperature of pins were measured under different current densities by thermocouple. The effects of velocity and current density on the frictional wear behavior of chromium bronze/brass couple were investigated. The surface microstructure of brass pin was observed by SEM. The results show that the tribological behavior of the chromium bronze/brass and surface temperature of the brass greatly depends on the current density. The surface temperature of brass pin increases remarkably as the electrical current passes through the pins and disk. The increase of current results in an increase in surface temperature and mass loss of brass and decrease in friction coefficient of the couple. Current density exists better effect on the surface temperature at low velocity specially. Electrical arc corrosion exists on the worn surface; the mass wear of the brass pin is increased by electrical arc corrosion.
Key words: chromium bronze/brass couple; current density; surface temperature; tribology behavior
