Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/36964
Title: | Corrosion behaviour of WC hardmetals with nickel - based binders |
Author: | Rocha, A.M. Ferro Bastos, A.C. Cardoso, J.P. Rodrigues, F. Fernandes, C.M. Soares, E. Sacramento, J. Senos, A.M.R. Ferreira, M.G.S. |
Keywords: | Hardmetals WC Metal matrix composites EIS |
Issue Date: | Feb-2019 |
Publisher: | Elsevier |
Abstract: | Cobalt is the standard binder in tungsten carbide (WC) hardmetals due to its compatibility with the WC phase, resulting in composites with exceptional hardness and wear resistance. However, their corrosion resistance is not satisfactory in many applications, leading to the early deterioration and failure of tools and equipment. In this work, the corrosion of WC hardmetals with three alternative binders (FeCoNi, NiCrCoMo and NiCrMo) is compared with a benchmark WC-Co composite, using electrochemical techniques such as open circuit potential (OCP) monitoring, polarisation curves and electrochemical impedance spectroscopy (EIS), assisted by scanning electron microscopy (SEM). |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/36964 |
DOI: | 10.1016/j.corsci.2018.11.015 |
ISSN: | 0010-938X |
Appears in Collections: | CICECO - Artigos DEMaC - Artigos ESTGA - Artigos |
Files in This Item:
File | Description | Size | Format | |
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CORROSION BEHAVIOUR OF W.pdf | 1.35 MB | Adobe PDF | View/Open |
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