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Effect of gaseous hydrogen embrittlement on the mechanical properties of additively manufactured CrMnFeCoNi high-entropy alloy strengthened by in-situ formed oxide

Authors
Kim, Young-Kyun; Suh, Jin-Yoo; Lee, Kee-Ahn
Issue Date
2020-10-07
Publisher
ELSEVIER SCIENCE SA
Citation
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.796
Abstract
Effect of gaseous hydrogen charging on the mechanical properties of additively-manufactured CrMnFeCoNi high-entropy alloy (HEA) strengthened by in-situ formed oxide was investigated. The results showed that SLM-built HEA exhibited yield strength of similar to 729.6 MPa and has an excellent hydrogen embrittlement resistance due to high-hydrogen solubility and easy deformation twin formation.
Keywords
MICROSTRUCTURE; BEHAVIOR; RESISTANCE; METALS; MICROSTRUCTURE; BEHAVIOR; RESISTANCE; METALS; High-entropy alloy; Hydrogen embrittlement; Selective laser melting; Nano-scale oxide; Tensile property
ISSN
0921-5093
URI
https://pubs.kist.re.kr/handle/201004/118001
DOI
10.1016/j.msea.2020.140039
Appears in Collections:
KIST Article > 2020
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