Low-Temperatures Physical-Mechanical Properties of the Medium-Entropy Alloy Co17.5Cr12.5Fe55Ni10Mo5
Yu. O. Semerenko1, E. D. Tabachnikova1, T. V. Hryhorova1, S. E. Shumilin1, Yu. O. Shapovalov1, H. S. Kim2, J. Moon2, H. Kwon2
1B.I. Verkin Institute for Low Temperature Physics and Engineering, NAS of Ukraine, 47 Nauky Ave., UA-61103 Kharkiv, Ukraine
2Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, KR-37673 Pohang, Gyeongbuk, Republic of Korea
Received: 31.01.2020; final version - 30.12.2020. Download: PDF
Mechanical and acoustical properties of the new medium-entropy alloy Co17,5Cr12,5Fe55Ni10Mo5 are studied for the first time in the low-temperature range. As shown, this alloy has a stable microstructure and rather high strength and plasticity. The high cryogenic strength of the investigated alloy, which is accompanied by a sufficiently high plasticity, allows considering this material as promising for cryogenic applications. The results obtained are important for the practical applications of high-entropy alloys at low temperatures.
Key words: medium-entropy alloy, strength, plasticity, acoustical absorption, dynamical elasticity modulus.
URL: http://mfint.imp.kiev.ua/en/abstract/v43/i02/0273.html
DOI: https://doi.org/10.15407/mfint.43.02.0273
PACS: 61.43.Gt, 62.20.D-, 62.20.F-, 62.25.-g, 62.40.+i
Citation: Yu. O. Semerenko, E. D. Tabachnikova, T. V. Hryhorova, S. E. Shumilin, Yu. O. Shapovalov, H. S. Kim, J. Moon, and H. Kwon, Low-Temperatures Physical-Mechanical Properties of the Medium-Entropy Alloy Co17.5Cr12.5Fe55Ni10Mo5, Metallofiz. Noveishie Tekhnol., 43, No. 2: 273—287 (2021) (in Ukrainian)