The Open Mechanical Engineering Journal

2015, 9 : 1051-1056
Published online 2015 October 9. DOI: 10.2174/1874155X01509011051
Publisher ID: TOMEJ-9-1051

Friction and Wear Behaviors of Gear Steel under Coupling of Rolling and Sliding

Ding Ming
Xuzhou Institute of Technology, Xuzhou 221008, China.

ABSTRACT

In this paper, the gear material 20CrMnTi was selected as the research object. Friction and wear behavior was performed on the M2000 friction and abrasion tester. The friction and wear mechanisms of 20CrMnTi steel were discussed under coupling of rolling and sliding. The results show that damage of steel-steel couples under coupling of rolling and sliding is caused by the interaction of mechanical fatigue with dynamical phenomena of rolling and sliding friction. Lubrication directly determines the friction and wear behaviors. Under dry friction, the wear mechanisms of 20CrMnTi steel are mainly adhesive wear, abrasive wear, oxidation wear and fatigue pitting under dry friction. Under lubricating conditions, the wear mechanism of 20CrMnTi steel is mainly surface fatigue wear.

Keywords:

20CrMnTi, gear, friction and wear, rolling and sliding.