Correlation Of Microstructure, Mechanical Properties And Corrosion Behavior In A Ni34Co28Cr28Al10 Multi-Principal Element Alloy With Outstanding Corrosion Resistance
Abstract
Microstructure, mechanical properties and corrosion behavior of a Ni34Co28Cr28Al10 multi-principal element alloy (MPEA) were investigated at different states. The as-cast and aged samples exhibited a primary face-cubic centered (FCC) phase and some B2 phase, wherein the FCC phase contained L12 precipitates and the B2 phase contained body-cubic centered (BCC) precipitates. The homogenized sample displayed a single FCC phase. The as-cast sample exhibited the best combination of mechanical properties and corrosion resistance, resulting from multiple strengthening mechanisms, and Al-rich L12 and B2 precipitates which could suppress the transfer of Al atoms to surface leading to increased Cr content in passive film.
Recommended Citation
S. Liu et al., "Correlation Of Microstructure, Mechanical Properties And Corrosion Behavior In A Ni34Co28Cr28Al10 Multi-Principal Element Alloy With Outstanding Corrosion Resistance," Corrosion Science, vol. 228, article no. 111835, Elsevier, Mar 2024.
The definitive version is available at https://doi.org/10.1016/j.corsci.2024.111835
Department(s)
Materials Science and Engineering
Keywords and Phrases
Corrosion behavior; Mechanical properties; Microstructural evolution; Multi-principal element alloy; Passive film
International Standard Serial Number (ISSN)
0010-938X
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Elsevier, All rights reserved.
Publication Date
01 Mar 2024
Comments
National Natural Science Foundation of China, Grant 2021QN02C766