摘要
在销—盘试验机上考察了干摩擦、水润滑及油润滑条件下Ti(CN)/45钢摩擦副的摩擦磨损性能。Ti(CN)陶瓷的磨损主要由粘着剥落和微断裂引起,水对Ti(CN)/45钢摩擦副的摩擦性能无明显改善,但能较明显地减小陶瓷的磨损。油润滑时,摩擦和磨损均得到了明显改善。水和油润滑介质的存在能有效地抑制金属在陶瓷表面的粘着转移,从而降低陶瓷磨损率。采用SEM,XPS,AES等对陶瓷磨痕的分析结果表明,摩擦面上Fe_2O_3的生成对粘着磨损起到了一定的改善作用。油(不含添加剂的液体石蜡)在极压条件下的减磨作用主要是由于其在陶瓷摩擦面上形成了较厚的碳膜(焦质,石墨复合膜)。
The friction and wear properties of Ti (CN) /1045steel rubbing pairs were investigated under dry and lubricated conditions by using a pin-on-disk trilometer. The selected speed range was 0. 8 to 3. 2m/s, the load range was 58. 8 to 235. 2N, Tap water and Liquid paraffin were used for lubrication respectively. The wear of Ti (CN) ceramic Under dry condition was caused' mainly by adhesion between the rubbing surfaces and microfracture of Ti (CN). With the load and speed increasing, the adhesion and diffusion between rubbing surfaces increased and resulted in Wear increasement. Because of the brittleness of ceramic, the microfracture wear of Ti (CN) increased rapidly when the load was raised to some high values. The lubricating and cooling effects of the lubricants could improve the friction and wear obviously. Compared with water, oil was much better in improving the tribological properties. The analysis results obtained from XPS, SEM and AES examinations showed that, ferrous oxide was produced on the wear scars which could reduce adhesion wear in some extent. The lubricating effects of the oil under serious boundary lubrication conditions were attributed to the formation of carbon films on the rubbing Surfaces.
出处
《现代技术陶瓷》
CAS
1996年第3期12-18,共7页
Advanced Ceramics
关键词
陶瓷
润滑剂
摩擦
磨损
粘度
Ceramic lubrication Tribochemistry Adhesive wear
