12/16/2023 0 Comments High entropy alloysA listing of these entries makes up a material record. Each member is characterized by a set of attributes which includes: alloy composition, phase content, density, hardness (Vickers), type of mechanical test (tension or compression), yield strength, ultimate strength, elongation, and Young's modulus. Each family is expanded in classes (a class is a unique combination of principal elements), and each class contains members having variations in principal element concentrations. 1) which includes four different families: 3d transition metal (3d TM), refractory metal (RHEAs and RCCAs), light metal family, and bronzes and brasses HEAs/CCAs. The database has a tree-like classification ( Fig. The data are stored in a database and tabulated in the present article.Ģ. Experimental design, materials and methods Thus, this data article is a compilation of the density and mechanical properties of CCAs published in the literature since 2004, allowing the performance indices for lighter, stronger and stiffer structures to be evaluated for different loading conditions. The relative merits of these new alloys depend on combinations of properties specific to the applications and loading conditions. CCAs can have single-phase or multi-phase microstructure.Ī detailed comparison of CCAs with competing commercial alloys is crucial to identify the most attractive alloys for structural applications and guide future studies. CCAs encompass all alloys, including HEAs, with three or more principal components. HEAs are defined as alloys with 5 or more principal elements that have concentrations between 5 and 35 atom percent, promoting the formation of single-phase-disordered solid solutions presumably stabilized by the configurational entropy of mixing. High entropy alloys (HEAs) and complex concentrated alloys (CCAs) represent a new branch of the metallic alloy tree.
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