Abstract
Effect of strain rate on the tensile behavior of two friction stir-processed dual-phase high entropy alloys was investigated. The dual-phase high entropy alloys have a high fraction of metastable f.c.c. phase. Engineering the f.c.c. phase metastability through alloy chemistry leads to different levels of transformation and impacts the retained f.c.c. phase after deformation. These metastable high entropy alloys show dominance of transformation-induced plasticity (TRIP) irrespective of strain rates, unlike the observations in TRIP steels.
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The authors gratefully acknowledge the support of the National Science Foundation through Grant #1435810. The authors also thank the Center for Advanced Research and Technology for providing access to the microscopy facilities at the University of North Texas.
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Manuscript submitted September 2, 2019.
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Liu, K., Nene, S.S., Frank, M. et al. Effect of Strain Rate on Deformation Response of Metastable High Entropy Alloys Upon Friction Stir Processing. Metall Mater Trans A 51, 5043–5048 (2020). https://doi.org/10.1007/s11661-020-05927-6
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DOI: https://doi.org/10.1007/s11661-020-05927-6