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Title: Corrosion resistance of WC hardmetals with different Co and Ni-based binders
Author: Pereira, P.
Rocha, A.M. Ferro
Sacramento, J.
Oliveira, F. J.
Senos, A. M. R.
Malheiros, L. F.
Bastos, Alexandre
Keywords: Hardmetals
Multicomponent binders
Mechanical properties
Polarization curves
Issue Date: Apr-2022
Publisher: Elsevier
Abstract: In this work, industrially relevant WC composites with alternative binders (Ni, CoNi, NiCr, CoCr, CoNiCr and NiCrMo) were produced and their corrosion resistance in 0.5 M NaCl was compared to conventional WC-Co system. The main objective is to develop hardmetals with higher corrosion resistance to extend the lifetime of tools and equipment, reducing the demand for new parts and maintenance, thus decreasing the total cost of the operation. The study includes different electrochemical techniques, namely corrosion potential monitoring, Electrochemical Impedance Spectroscopy (EIS) and polarization curves. The purpose is to evaluate the influence of each element on the corrosion resistance of the composites produced.
Peer review: yes
DOI: 10.1016/j.ijrmhm.2022.105799
ISSN: 0263-4368
Appears in Collections:CICECO - Artigos
DEMaC - Artigos
ESTGA - Artigos

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