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Comparative microstructural and corrosion development of VCrNiCoFeCu equiatomic multicomponent alloy produced by induction melting and spark plasma sintering

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, , Citation É Fazakas et al 2018 IOP Conf. Ser.: Mater. Sci. Eng. 329 012016 DOI 10.1088/1757-899X/329/1/012016

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1 Bay Zoltán Nonprofit Ltd. for Applied Research, Engineering Division, Budapest, Hungary

2 Institute of Materials Physics, Eötvös University, Budapest H-1117, Pázmány P. stny 1/A

3 Materials Science Group, Dalarna University, 791 88 Falun, Sweden

4 Applied Materials Physics, Department of Materials Science and Engineering, Royal Institute of Technology,Stockholm SE-100 44, Sweden

5 Transilvania University of Brasov, Bulevardul Eroilor 29, Braşov 500036

6 National University of Science and Technology «MISIS», Leninsky prosp., 4, Moscow, 119049, Russia

7 Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, H-1525 Budapest, P.O. Box 49, Hungary

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1757-899X/329/1/012016

Abstract

The present study focuses on the corrosion behavior of a single-phase FCC high entropy alloy (VCrNiCoFeCu) casted by two different methods: induction melting and spark plasma sintering. The corrosion resistance has been evaluated using immersion tests in 3.5% NaCl solution, the potentiodynamic polarization measurements and the results are compared how is dependent the corrosion rate as a function of the production methods. Our results show that induction melted sample is stable in salty environment. On the other hand, based on the changes of polarization curves, there must be an evolution of oxide films on the SPSed sample until reaching the stable oxide layer.

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10.1088/1757-899X/329/1/012016