Author:
Wang Weihua,Xie Faqin,Wu Xiangqing,Zhu Zheng,Wang Shaoqing,Lv Tao
Abstract
In order to increase the surface hardness and wear-resistance property of sled track slippers, a Ni80Al20-MoS2 composite coating was fabricated on the surface of a stainless steel 0Cr18Ni9Ti sled track slipper via atmospheric spray and hot dipping. The microstructure, composition and surface hardness of coatings under different spraying powers were characterized and measured. The wear-resistant properties of the slipper substrate and the coating were also checked. The results showed that the higher the spraying power was, the greater the smoothness, density and hardness was of the Ni80Al20 coating, while the thickness initially increased and then decreased. When the spraying power was 18 kW, the thickness was 342.5 μm, the surface hardness was 304.1 Hv0.2, and the coating was composed of Ni, Al, Ni3Al, NiAl and a little Al2O3. The friction coefficient of the slipper substrate against GCr15 balls at room temperature in air was 0.7, while the coated substrate with MoS2 lubrication film was 0.3 and the volume wear rate declined by 1/5. The friction coefficient of the Ni80Al20 coating was 0.5 and the Ni80Al20-MoS2 composite coating was 0.15, while the volume wear rate declined by 1/4 and 1/3.
Subject
Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces
Reference24 articles.
1. An evaluation of high velocity wear
2. Evaluation of Flow and Failure Properties of Treated 4130 Steel
3. Finite Element Simulation Methods for Dry Sliding Wearhttps://pdfs.semanticscholar.org/6363/d1d178f628b5bcf181997afd02552a69d0b7.pdf
4. A Finite Element Study of Sliding Friction between Rough Surfaceshttps://ecommons.udayton.edu/cgi/viewcontent.cgi?article=2855&context=graduate_theses
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献