The Influence of Chromium Content on the Structural and Mechanical Properties of AlCrxFeCoNi High Entropy Alloys

Many high entropy alloy systems have been exploited in the past decade and among them AlCrFeCoNi alloy is widely studied. The structural and mechanical properties of AlCrxFeCoNi alloy was studied in this paper for different content of chromium (atomic ratio, x= 0.2 to 2.0 at. %). In this study, ten...

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Published inInternational journal of engineering research in Africa (Print) Vol. 37; pp. 23 - 28
Main Authors Geantă, Victor, Cotruț, Cosmin Mihai, Istrate, Bogdan, Ciocoiu, Robert, Vrânceanu, Maria-Diana, Voiculescu, Ionelia
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 06.08.2018
Subjects
Alloy systems
Alloys
Chemical composition
Chromium
Crystallites
Entropy
High entropy alloys
Mechanical properties
Microhardness
Organic chemistry
Raw materials
Chromium Behavior
High Entropy Alloys
Microstructure
Microhardness
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Summary:Many high entropy alloy systems have been exploited in the past decade and among them AlCrFeCoNi alloy is widely studied. The structural and mechanical properties of AlCrxFeCoNi alloy was studied in this paper for different content of chromium (atomic ratio, x= 0.2 to 2.0 at. %). In this study, ten samples having different chemical composition were prepared from raw materials using RAV equipment, type MRF ABJ 900. The microstructure features, crystallite sizes and microhardness depends on chemical composition of the alloy. The microhardness values for AlCrxFeCoNi (x = 0.2 to 2 at. %) increases from 389.6 to 562.6 HV0.1. The maximum value of microhardness for the high entropy alloy AlCrxFeCoNi (x = 1), has been obtained for 20.55 wt% Cr and has the value 562.6 HV0.1.
ISSN:1663-3571
1663-4144
1663-4144
DOI:10.4028/www.scientific.net/JERA.37.23