Surface coating effects on contact stress and wear: an approach of surface engineering design and modelling.
The present paper is a dedication to Professor Tom Bell, a distinguished scientist and engineer, for his great contributions and achievements in surface engineering design and modelling. An initial attempt has been made in surface engineered system design through combining the authors’ previous achievements in understanding surface engineering system contact mechanics. The approach is taken mainly from modelling the contact behaviour of multi layer surface coated system with real rough surface profiles in terms of contact stress and deformation and both boundary and finite element methods have been employed to understand the system contact behaviour. Experimental investigations had also been carried out on the performance of surface engineered gears (steel and titanium). For steel gears, tests had been carried out on the untreated, TiN coated, plasma nitrided and duplex treated under dry running conditions and it had been shown that the duplex system is the best in wear resistance among the others. For titanium gears, experimental tests had been carried out on untreated and thermal oxidized (TO) titanium against steel gears and the TO treated showed a significant wear improvement compared to that for the untreated. Finally, possible further investigations have been also proposed.
Citation : Mao, K. et al. (2010) Surface coating effects on contact stress and wear: an approach of surface engineering design and modelling. Surface Engineering, 26 (1-2), pp.142-148
ISSN : 0267-0844
Research Group : Emerging Technologies Research Centre
Research Institute : Institute of Engineering Sciences (IES)
Peer Reviewed : Yes