materialscloud:2021.65
Published April 28, 2021 | Version v1
Dataset Open

Prediction of yield strength in refractory body-centered-cubic High Entropy Alloys

Creators

  • 1. Engineering and Technology Institute (ENTEG), Faculty of Science and Engineering, University of Groningen, Groningen, 9474AG, Netherlands
  • 2. Laboratory for Multiscale Mechanics Modeling, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
  • 3. Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN 37996-2100, USA
  • 4. Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
  • 5. Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
  • 6. Department of Electrophysics, National Chiao Tung University, Hsinchu, 30010, Taiwan
  • 7. Department of Materials Physics, Eötvös University, Budapest, P.O. Box 32, H-1518, Hungary
  • 8. Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA
  • 9. Center for Nano-phase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA

* Contact person

Description

Energy efficiency is motivating the search for new high-temperature metals. Some new body-centered-cubic random multicomponent "high entropy alloys (HEAs)" based on refractory elements (Cr-Mo-Nb-Ta-V-W-Hf-Ti-Zr) possess exceptional strengths at high temperatures but the physical origins of this outstanding behavior are not known. Here, by using a recent mechanistic theory, we have computed the high-temperature (T=1300K) yield strength based on solute strengthening of over 10 million alloys within the whole Al-Cr-Mo-Nb-Ta-V-W-Hf-Ti-Zr alloy family. Also the yield strength/density has been computed. This database enables the efficient search of new alloys with exceptional high-temperature strength.

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References

Preprint (Preprint where the data is discussed)
F. Maresca, C. Lee, R. Feng, Y. Chou, T. Ungar, M. Widom, K. An, J. Poplawsky, Y.-C. Chou, P. Liaw., W. Curtin, arXiv:2008.11671 (2020)

Journal reference (Paper in which the theory is described)
F. Maresca, W. Curtin, Acta Mater. 182, 235-249 (2020), doi: 10.1016/j.actamat.2019.10.015