Author/Authors :
Zhou, Xiaowei School of Material Science and Engineering - Jiangsu University of Science and Technology - Jiangsu , China , Zhu, Zhiyuan School of Material Science and Engineering - Jiangsu University of Science and Technology - Jiangsu , China , Ouyang, Chun School of Material Science and Engineering - Jiangsu University of Science and Technology - Jiangsu , China , Qiao, Yanxin School of Material Science and Engineering - Jiangsu University of Science and Technology - Jiangsu , China
Abstract :
The microstructure and wear resistance of Stellite 6 alloy hardfacing layer at two different temperatures (room temperature and300∘C) were investigated by plasma arc surfacing processes on Q235 Steel. Tribological test was conducted to characterize the wearproperty. The microstructure of Stellite 6 alloy coating mainly consists of𝛼-Co and (Cr, Fe)7C3phases. The friction coefficient ofStellite 6 alloys fluctuates slightly under different loads at 300∘C. The oxide layer is formed on the coating surface and serves as aspecial lubricant during the wear test. Abrasive wear is the dominant mechanism at room temperature, and microploughing andplasticity are the key wear mechanisms at 300∘C.
