Elastic moduli and thermal expansion coefficients of medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy
Abstract
Elastic moduli of a set of equiatomic alloys (CrFeCoNi, CrCoNi, CrFeNi, FeCoNi, MnCoNi, MnFeNi, and CoNi), which are medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy were determined as a function of temperature over the range 293 K–1000 K. Thermal expansion coefficients were determined for these alloys over the temperature range 100 K–673 K. All alloys were single-phase and had the face-centered cubic (FCC) crystal structure, except CrFeNi which is a two-phase alloy containing a small amount of body-centered cubic (BCC) precipitates in a FCC matrix. The temperature dependences of thermal expansion coefficients and elastic moduli obtained here are useful for quantifying fundamental aspects such as solid solution strengthening, and for structural analysis/design. Furthermore, using the above results, the yield strengths reported in literature for these alloys were normalized by their shear moduli to reveal the influence of shear modulus on solid solution strengthening.
- Authors:
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1632363
- Alternate Identifier(s):
- OSTI ID: 1456785
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Published Article
- Journal Name:
- Journal of Alloys and Compounds
- Additional Journal Information:
- Journal Name: Journal of Alloys and Compounds Journal Volume: 746 Journal Issue: C; Journal ID: ISSN 0925-8388
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; High entropy alloys; CoCrFeMnNi; Microstructure; Texture; Thermal expansion coefficient; Elastic constants
Citation Formats
Laplanche, G., Gadaud, P., Bärsch, C., Demtröder, K., Reinhart, C., Schreuer, J., and George, E. P. Elastic moduli and thermal expansion coefficients of medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy. Netherlands: N. p., 2018.
Web. doi:10.1016/j.jallcom.2018.02.251.
Laplanche, G., Gadaud, P., Bärsch, C., Demtröder, K., Reinhart, C., Schreuer, J., & George, E. P. Elastic moduli and thermal expansion coefficients of medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy. Netherlands. https://doi.org/10.1016/j.jallcom.2018.02.251
Laplanche, G., Gadaud, P., Bärsch, C., Demtröder, K., Reinhart, C., Schreuer, J., and George, E. P. Tue .
"Elastic moduli and thermal expansion coefficients of medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy". Netherlands. https://doi.org/10.1016/j.jallcom.2018.02.251.
@article{osti_1632363,
title = {Elastic moduli and thermal expansion coefficients of medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy},
author = {Laplanche, G. and Gadaud, P. and Bärsch, C. and Demtröder, K. and Reinhart, C. and Schreuer, J. and George, E. P.},
abstractNote = {Elastic moduli of a set of equiatomic alloys (CrFeCoNi, CrCoNi, CrFeNi, FeCoNi, MnCoNi, MnFeNi, and CoNi), which are medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy were determined as a function of temperature over the range 293 K–1000 K. Thermal expansion coefficients were determined for these alloys over the temperature range 100 K–673 K. All alloys were single-phase and had the face-centered cubic (FCC) crystal structure, except CrFeNi which is a two-phase alloy containing a small amount of body-centered cubic (BCC) precipitates in a FCC matrix. The temperature dependences of thermal expansion coefficients and elastic moduli obtained here are useful for quantifying fundamental aspects such as solid solution strengthening, and for structural analysis/design. Furthermore, using the above results, the yield strengths reported in literature for these alloys were normalized by their shear moduli to reveal the influence of shear modulus on solid solution strengthening.},
doi = {10.1016/j.jallcom.2018.02.251},
journal = {Journal of Alloys and Compounds},
number = C,
volume = 746,
place = {Netherlands},
year = {Tue May 01 00:00:00 EDT 2018},
month = {Tue May 01 00:00:00 EDT 2018}
}
https://doi.org/10.1016/j.jallcom.2018.02.251
Web of Science
Works referencing / citing this record:
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