Journal
SCRIPTA MATERIALIA
Volume 210, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2021.114462
Keywords
Order-disorder phenomena; CALPHAD; Ductility; Differential scanning calorimetry (DSC); High entropy alloys
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Funding
- Ohio State University (OSU)
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This paper investigated an important order-disorder transition in the lightweight AlCrTiV high entropy alloy system. It is found that increasing Ti content in the alloys can lower the transition temperature, reduce ordering, and introduce ductility. The new Al10Cr10Ti70V10 alloy exhibits measurable tensile elongation and excellent strengths, showing promise for lightweight applications.
This paper investigated an important order-disorder transition in lightweight AlCrTiV high entropy alloy system using CALculation of Phase Diagram (CALPHAD) modeling, differential scanning calorimetry (DSC) measurement, transmission electron microscopy (TEM) characterization and mechanical testing. It is found that increasing Ti content in AlCrTiV alloys can lower the order-disorder transition temperature, reduce ordering and introduces ductility to the alloys. The new Al10Cr10Ti70V10 alloy shows a measurable tensile elongation (1.1%) and excellent strengths (877 MPa yield strength and 889 MPa ultimate tensile strength), promising lightweight applications. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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