Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 789, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2020.139587
Keywords
High-entropy alloy; Nitrogen; Ultrafine grain; Strength; Ductility
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Funding
- National Natural Science Foundation of China [U1960203, 51774074, 51434004, U1435205]
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We reported a nitrogen-containing CoCrFeMnNi high-entropy alloy (HEA) with ultrafine-grained structure. Nitrogen addition significantly enhanced the yield strength and retained high ductility, due to the increase of lattice frictional forces and the maintaining planar slip and twinning, providing an accessible way to ameliorate mechanical properties of HEAs.
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