journal article·2015-03

Structure and mechanical properties of a light-weight AlNbTiV high entropy alloy

N.D. Stepanov, D.G. Shaysultanov, G.A. Salishchev, M.A. Tikhonovsky

Materials Letters· Volume 142
Publisher page

Abstract

Abstract The crystal structure, microstructure, density, microhardness and mechanical properties of new AlNbTiV high entropy alloy were examined. The alloy had coarse-grained single bcc phase structure with density of 5.59 g cm−3 and hardness of 4315–4394 MPa. The compressive yield strength of the alloy gradually decreased from 1020 MPa at room temperature to 685 MPa at 800 °C, and then dropped to 158 MPa at 1000 °C. Specific yield strength of the alloy was found to be comparable with strength of multiphase refractory high entropy alloys. Effect of chemical composition on mechanical properties and potential ways to optimize composition are discussed.
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Research context

OpenAlex topics: High Entropy Alloys Studies · High-Temperature Coating Behaviors · Metal and Thin Film Mechanics

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References (16)

Show source-provided references
1. Microstructures and properties of high-entropy alloys10.1016/j.pmatsci.2013.10.001 ↗
2. Refractory high-entropy alloys10.1016/j.intermet.2010.05.014 ↗
3. Mechanical properties of Nb25Mo25Ta25W25 and V20Nb20Mo20Ta20W20 refractory high entropy alloys10.1016/j.intermet.2011.01.004 ↗
4. Microstructure and elevated temperature properties of a refractory TaNbHfZrTi alloy10.1007/s10853-012-6260-2 ↗
5. Low-density, refractory multi-principal element alloys of the Cr–Nb–Ti–V–Zr system: microstructure and phase analysis10.1016/j.actamat.2012.11.032 ↗
6. Mechanical properties of low-density, refractory multi-principal element alloys of the Cr–Nb–Ti–V–Zr system10.1016/j.msea.2012.12.018 ↗
7. Microstructure and properties of aluminum-containing refractory high-entropy alloys10.1007/s11837-014-1066-0 ↗
8. Effect of aluminum on the microstructure and properties of two refractory high-entropy alloys10.1016/j.actamat.2014.01.029 ↗
9. Prediction of high-entropy stabilized solid-solution in multi-component alloys10.1016/j.matchemphys.2011.11.021 ↗
10. Microstructure of a near-equimolar refractory high-entropy alloy10.1016/j.matlet.2014.04.062 ↗
11. Effect of valence electron concentration on stability of fcc or bcc phase in high entropy alloys10.1063/1.3587228 ↗
12. Microstructure and properties of a refractory NbCrMo0.5Ta0.5TiZr alloy10.1016/j.msea.2011.09.033 ↗
13. New structure in refractory high-entropy alloys10.1016/j.matlet.2014.06.064 ↗
14. A refractory Hf25Nb25Ti25Zr25 high-entropy alloy with excellent structural stability and tensile properties10.1016/j.matlet.2014.05.134 ↗
15. Search for high entropy alloys in the X-NbTaTiZr systems (X=Al,Cr,V,Sn)10.1016/j.jallcom.2014.09.145 ↗
16. Mixing enthalpy of liquid phase calculated by Miedema’s scheme and approximated with sub-regular solution model for assessing forming ability of amorphous and glassy alloys10.1016/j.intermet.2010.06.003 ↗