Corrosion behavior of an equiatomic CoCrFeMnNi high-entropy alloy compared with 304 stainless steel in sulfuric acid solution
- 1. Max-Planck Institut für Eisenforschung, Max-Planck Str. 1, D-40237 Düsseldorf (Germany)
Description
Highlights: • Corrosion behaviour of CoCrFeMnNi high-entropy alloy (HEA) was investigated. • No selective dissolution occurs on HEA surface during the passivation process. • Passive film of the HEA is enriched in Fe and Mn but depleted in Cr. • Extensive formation of mixed metal hydroxides in the passive film was revealed. - Abstract: The corrosion resistance and passive film properties of an equiatomic CoCrFeMnNi high-entropy alloy (HEA) compared with 304L stainless steel in 0.1 M H2SO4 solution were investigated. The in-situ element-resolved corrosion analysis shows that selective dissolution of elements in the HEA is not evident compared to a 304 L stainless steel during passivation. The passive film formed on the HEA is enriched in Fe and Mn but depleted in Cr. The low content of Cr and the extensive formation of metal hydroxide in the passive film are responsible for the lower anti-corrosion performance of the HEA.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.corsci.2018.02.031Additional details
Identifiers
- DOI
- 10.1016/j.corsci.2018.02.031;
- PII
- S0010938X17310491;
Publishing Information
- Journal Title
- Corrosion Science
- Journal Volume
- 134
- Journal Page Range
- p. 131-139
- ISSN
- 0010-938X
- CODEN
- CRRSAA
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 50047355
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALLOY SYSTEMS; CHROMIUM COMPOUNDS; COBALT COMPOUNDS; CORROSION; CORROSION RESISTANCE; DISSOLUTION; ENTROPY; FILMS; HYDROXIDES; IRON COMPOUNDS; MANGANESE COMPOUNDS; NICKEL COMPOUNDS; PASSIVATION; STAINLESS STEEL-304; STAINLESS STEEL-304L; SURFACES; X-RAY PHOTOELECTRON SPECTROSCOPY
- Descriptors DEC
- ALLOYS; AUSTENITIC STEELS; CARBON ADDITIONS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CORROSION RESISTANT ALLOYS; ELECTRON SPECTROSCOPY; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; HYDROGEN COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; LOW CARBON-HIGH ALLOY STEELS; MATERIALS; NICKEL ALLOYS; OXYGEN COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; PHYSICAL PROPERTIES; SPECTROSCOPY; STAINLESS STEELS; STEEL-CR19NI10; STEEL-CR19NI10-L; STEELS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.