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

Francesco Maresca1,2*, Chanho Lee3,4, Rui Feng3,5, Yi Chou6, Tamas Ungar7, Michael Widom8, Jonathan Poplawsky9, Yi-Chia Chou6, Peter Liaw3, William Curtin2*

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

* Corresponding authors emails: f.maresca@rug.nl, william.curtin@epfl.ch
DOI10.24435/materialscloud:fs-27 [version v1]

Publication date: Apr 28, 2021

How to cite this record

Francesco Maresca, Chanho Lee, Rui Feng, Yi Chou, Tamas Ungar, Michael Widom, Jonathan Poplawsky, Yi-Chia Chou, Peter Liaw, William Curtin, Prediction of yield strength in refractory body-centered-cubic High Entropy Alloys, Materials Cloud Archive 2021.65 (2021), doi: 10.24435/materialscloud:fs-27.

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.

Materials Cloud sections using this data

No Explore or Discover sections associated with this archive record.

Files

File name Size Description
README.txt
MD5md5:11768af31cf229be37f6d05fccf7893d
1.5 KiB README file. To generate the database, MATLAB R2020a was used.
DATA_10mln_STRENGTHS.mat
MD5md5:da7c045a9aaf5e3497d1bc1234cf0639
842.1 MiB Database including T=1000C yield strength and specific yield strength predictions for over 10 million BCC high entropy alloys
Data_strengthT.zip
MD5md5:03e93b887db950a68f54fbd09abfd8de
170.3 MiB Data_strengthT array in compressed CSV format
Data_strengthweightT.zip
MD5md5:0cfc959d6b6122c6dea829d0be0c172d
172.6 MiB Data_strengthweightT array in compressed CSV format

License

Files and data are licensed under the terms of the following license: Creative Commons Attribution 4.0 International.
Metadata, except for email addresses, are licensed under the Creative Commons Attribution Share-Alike 4.0 International license.

External references

Preprint (Preprint where the data is discussed)
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

Keywords

High entropy alloys Solute strengthening High temperature strength ERC EPFL

Version history:

2021.65 (version v1) [This version] Apr 28, 2021 DOI10.24435/materialscloud:fs-27