Влияние температур ы интенсивной пластической деформации на механические свойства высокоэнтропийного сплава CoCrFeNiMn

Autor(en)

Yuriy O. Shapovalov, Elena D. Tabachnikova, Mikhail A. Tikhonovsky, A.V. Levenets , Michael Zehetbauer, Erhard Schafler

Abstrakt

In this work, we studied the low-temperature plasticity, elastic and dissipative characteristics, as well as the microstructural
evolution of the Fe 40 Mn 40 Co 10 Cr 10 high-entropy alloy in a wide temperature range of 300 - 0.5 K. The temperature dependences of
yield strength, strain hardening, strength and ductility, as well as acoustic absorption and dynamic Young's modulus are obtained. It
was found that the structure of Fe 40 Mn 40 Co 10 Cr 10 alloy in the initial state is single-phase with fcc lattice, and in the deformed state at
low temperatures it becomes two-phase due to the deformation-induced phase transition. In addition, EBSD analysis of the alloy
structure revealed a change in grain morphology and the appearance of twin dislocations after plastic deformation at all investigated

Organisation(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

National Science Center Kharkiv Institute of Physics and Technology (KIPT), National Academy of Sciences of Ukraine (NASU)

Journal

Вісник Харківського національного університету імені В. Н. Каразіна Серія : Фізика = Kharkov University bulletin

Band

32

Seiten

59-64

Anzahl der Seiten

6

ISSN

2222-5617

DOI

https://doi.org/10.26565/2222-5617-2020-32-07

Publikationsdatum

07-2020

ÖFOS 2012

103018 Materialphysik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/54f5ce4a-dbd6-4b93-9b06-7e6ee24a74a3