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Corrosion mechanism of HVOF thermal sprayed WC-CoCr coatings in acidic chloride media

Author
Picas, J.A.; Punset, M.; Rupérez de Gracia, E.; Menargues, S.; Martin, E.; Baile Puig, Maria Teresa
Type of activity
Presentation of work at congresses
Name of edition
8th Rencontres Internationales sur la Projection Thermique
Date of publication
2017
Presentation's date
2017-12-07
Abstract
HVOF thermal sprayed WC cermet coatings exhibit excellent abrasive and erosive wear resistance due to the presence of high volume fraction of WC particles bound by a tough cobalt or cobalt-chromium alloy binder. However, limited information is at present available on the corrosion response of these coatings in strong acidic environment. In the present study, the corrosion behaviour of the WC-CoCr coatings was investigated by electrochemical polarization technique in 0.1N hydrochloric (HCl) acid ...
Keywords
Coatings, Corrosion, HVOF, Thermal spray, WC-CoCr
Group of research
BBT - Biomaterials, Biomechanics and Tissue Engineering
CDAL - Light Alloys and Surface Treatment Design Centre
CRnE - Barcelona Research Center in Multiscale Science and Engineering

Participants