Phase structures of gas atomized equiatomic CrFeNiMn high entropy alloy powder

0534542 - FZÚ 2021 RIV NL eng J - Článek v odborném periodiku
Lehtonen, J. - Ge, Y. - Ciftci, N. - Heczko, Oleg - Uhlenwinkel, V. - Hannula, S.-P.
Phase structures of gas atomized equiatomic CrFeNiMn high entropy alloy powder.
Journal of Alloys and Compounds. Roč. 827, Jun (2020), s. 1-7, č. článku 154142. ISSN 0925-8388. E-ISSN 1873-4669
Institucionální podpora: RVO:68378271
Klíčová slova: gas atomization * high entropy alloy * mechanical properties * magnetic properties * powder metallurgy * microstructure
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 5.316, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.jallcom.2020.154142

In powder technologies such as sintering, 3-D printing, and thermal spraying, the characteristics of the powders are of uttermost importance. This holds for composition as well as for phase and grain structure. In this work, we characterize argon gas atomized Cr25.2Fe24.8Ni25.5Mn24.5 high entropy alloy powder, which is a material of high interest for applications requiring high strength and radiation resistance. The microstructure of gas atomized particles at different class sizes is characterized and the powder properties are determined by nanoindentation and magnetic measurements. The atomized particles have a smooth spherical shape with a fine surface pattern. The composition and phase structure as well as hardness and magnetic properties are particle size dependent, i.e., depend on cooling rate during atomization.
Trvalý link: http://hdl.handle.net/11104/0312724