TY - JOUR
T1 - Tribological properties of in situ Fe3Al-20 wt% Al 2O3 composites
AU - Bai, Yaping
AU - Xing, Jiandong
AU - Liu, Zhen
AU - Wu, Haoliang
AU - Ma, Shengqiang
AU - Huang, Qian
AU - Gao, Yimin
PY - 2013/1
Y1 - 2013/1
N2 - The tribological properties of Fe3Al-20 wt% Al2O 3 composites, prepared by means of mechanical alloying and plasmaactivated sintering, were investigated under air atmosphere against GCr15 bearing steels from room temperature to 500 °C. It was found that the friction coefficient of the composites (at 200 °C/350 °C) decreased with increasing temperature and the value was lower than that of Fe3Al alloys at the same temperature, and the friction coefficient increased again at 500 °C. Moreover, the wear rates of all the pins and discs were low at the medium/high temperatures. The dominant wear mechanism of the composites is microplowing and a little oxidation wear at room temperature. However, at elevated temperatures, oxidation wear and a little microplowing are found to be the main wear mechanism. There is also spalling induced by microfracture at 500 °C. The in situ Fe3Al-20 wt% Al2O3 composites have excellent wear resistance at a wide temperature range.
AB - The tribological properties of Fe3Al-20 wt% Al2O 3 composites, prepared by means of mechanical alloying and plasmaactivated sintering, were investigated under air atmosphere against GCr15 bearing steels from room temperature to 500 °C. It was found that the friction coefficient of the composites (at 200 °C/350 °C) decreased with increasing temperature and the value was lower than that of Fe3Al alloys at the same temperature, and the friction coefficient increased again at 500 °C. Moreover, the wear rates of all the pins and discs were low at the medium/high temperatures. The dominant wear mechanism of the composites is microplowing and a little oxidation wear at room temperature. However, at elevated temperatures, oxidation wear and a little microplowing are found to be the main wear mechanism. There is also spalling induced by microfracture at 500 °C. The in situ Fe3Al-20 wt% Al2O3 composites have excellent wear resistance at a wide temperature range.
KW - In situ FeAl-20 wt% AlO composites
KW - Wear mechanism
KW - Wide temperature range
UR - https://www.scopus.com/pages/publications/84875723351
U2 - 10.1177/1350650112455773
DO - 10.1177/1350650112455773
M3 - 文章
AN - SCOPUS:84875723351
SN - 1350-6501
VL - 227
SP - 67
EP - 78
JO - Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
JF - Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
IS - 1
ER -