Formation and role of tribo-oxides in elevated-temperature wear
1. School of Materials Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China; 2. School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
Abstract：Dry sliding wear tests of 3Cr3Mo2V cast steel and 3Cr13 steel were performed at 200 ℃ and 400 ℃ on a pin-on-disk wear tester. The results show that tribo-oxides present marked influence on wear behavior and mechanism. The wear-reduced effect of tribo-oxides depends on content and substrate. For tempered troostite and martensite of 3Cr3Mo2V cast steel, a small amount of tribo-oxides can entirely avoid metal adhering metal to form oxidative mild wear at 200 ℃. However, for tempered sorbite, oxidative wear is prevailed due to the accelerating delamintion of tribo-oxides caused by plastic deformation in soft matrix. High Cr-content in 3Cr13 steel impedes the formation of tribo-oxides. Adhesive wear is predominant wear mechanism at 200 ℃, while oxidative wear is predominated at 400 ℃ because of thermal softening of matrix. The wear loss of tempered troosite is the lowest, while the tempered sorbite is the highest.
杨子润1, 王树奇2, 孙瑜1, 庞绍平1. 摩擦氧化物在钢的高温磨损中的形成和作用[J]. 江苏大学学报（自然科学版）, 2013, 34(6): 709-714.
Yang Zirun1, Wang Shuqi2, Sun Yu1, Pang Shaoping1. Formation and role of tribo-oxides in elevated-temperature wear[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2013, 34(6): 709-714.
2013, Vol. 34 
