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V. GEANTĂ1, I. VOICULESCU1, R. ŞTEFĂNOIU1,* , D. SAVASTRU2, I. CSAKI1, D. PATROI3, L. LEONAT3
The multi-element materials with high entropy, generic called High Entropy Alloys - HEA, contains at least five metal elements, at concentrations between 5 and 35 atomic %. Recent researches in the field has shown that such materials have superior properties compared to traditional alloys (steel, super alloys etc.), and therefore, can be used in the top fields of the industry. High entropy alloys can be designed to have special characteristics such as high hardness combined with toughness and plasticity, which can be influenced by the chemical composition. The paper presents the results regarding the processing and characterization of high entropy multi-element materials from as cast AlCrFeCoNi class, for which were studied the influence of chemical composition on the mechanical and structural properties. It was found that by fast cooling of HEA, the breaking energy values are in the range 60 ... 72 J, while the microhardness varies in the range of 169…516 HV0.1, depending on the materials composition..
High entropy alloy, Microhardness, Toughness, Microstructure.
V. GEANTĂ, I. VOICULESCU, R. ŞTEFĂNOIU, D. SAVASTRU, I. CSAKI, D. PATROI, L. LEONAT, Processing and characterization of advanced multi-element high entropy materials from AlCrFeCoNi system, Optoelectronics and Advanced Materials - Rapid Communications, 7, 11-12, November-December 2013, pp.874-880 (2013).
Submitted at: Oct. 16, 2013
Accepted at: Nov. 7, 2013
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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