期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2018.08.079
关键词
High entropy alloys; Nano-grains; Nano-twins; High-pressure torsion; Ultra-high tensile strength
类别
资金
- Future Materials Discovery Project through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT [NRF-2016M3D1A1023383]
- Korea Research Fellowship program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2017H1D3A1A01013666]
A nanocrystalline CoCrNi alloy of similar to 50 nm grain size with the ultra-high ultimate tensile strength of similar to 2.2 GPa and fracture strain of similar to 9% was fabricated using high-pressure torsion. The presence of high density of nano-twins, stacking faults, dislocations, and nano-grains is attributed to the superior mechanical properties.
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