The friction coefficient evolution of a MoS2/WC multi-layer coating system during sliding wear

10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes

Chan, T.Y.^1 ; Hu, Y.^1 ; Gharbi, Mohammad M^2 ; Politis, D.J.^1 ; Wang, L.^1

Department of Mechanical Engineering, Imperial College London, London

SW7 2AZ, United Kingdom^1

Schuler Pressen GmbH, Bahnhofstrasse 41, Goppingen

73033, Germany^2

关键词: Coated substrates;    Coating surface;    Friction coefficients;    Molybdenum disulphide;    Multi-layer-coating;    Pin on disc tribometer;    Sliding distances;    Wear mechanisms;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/734/3/032081/pdf
DOI  :  10.1088/1742-6596/734/3/032081

来源: IOP

【 摘 要 】

This paper discusses the evolution of friction coefficient for the multi-layered Molybdenum Disulphide (MoS2) and WC coated substrate during sliding against Aluminium AA 6082 material. A soft MoS2coating was prepared over a hard WC coated G3500 cast iron tool substrate and underwent friction test using a pin-on-disc tribometer. The lifetime of the coating was reduced with increasing load while the Aluminium debris accumulated on the WC hard coating surfaces, accelerated the breakdown of the coatings. The lifetime of the coating was represented by the friction coefficient and the sliding distance before MoS2coating breakdown and was found to be affected by the load applied and the wear mechanism.