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Direct Laser Deposition (DLD) of WC/Co cermets as wear-resistant coatings

thesis
posted on 22.02.2021, 08:25 by CHUN KIT SIT
This thesis presents the Additive Manufacturing (Direct Laser Deposition) of Tungsten Carbide (WC) cermets, a material that has long been used for wear applications. This alternative route of fabrication allows the expensive yet wear-resistant materials to be placed at locations where the wear resistance is required. This thesis illustrates the effects of different print parameters, presents the optimal parameters that result in a dense and successful deposition without Carbon loss or Cobalt binder evaporation, and examines the microstructure and wear mechanisms. With our unique microstructures, the wear performance of our WC coatings exceeds that of the commercial WC cermets by more than 1 order of magnitude.

History

Campus location

Australia

Principal supervisor

Christopher Ross Hutchinson

Year of Award

2021

Department, School or Centre

Materials Science and Engineering

Additional Institution or Organisation

mineAlloy - ARC Training Centre in Alloy Innovation for Mining Efficiency

Course

Master of Engineering Science (Research)

Degree Type

RESEARCH_MASTERS