Corrosion and tribocorrosion behaviour of WC/C coating on beryllium-copper mould alloy

Abstract

In this study, WC/C coating was applied on beryllium (Be)-copper (Cu) mould alloy by arc physical vapor deposition (PVD) as a corrosion and wear protection barrier against alumina ball in a 3.5 wt% NaCl solu- tion. Tribocorrosion tests were carried out in a triboelectrochemical cell using a ball-on-plate tribometer integrated with a potentiostat for electrochemical control. The results showed a clear improvement of wear resistance on the WC/C coating without reducing the corrosion behavior in a 3.5 wt% NaCl solution. (C) 2020 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of The Third International Conference on Materials and Environmental Science.