Mechanically derived short-range order and its impact on the multi-principal-element alloys

Jae Bok Seol; Won Seok Ko; Seok Su Sohn; Min Young Na; Hye Jung Chang; Yoon Uk Heo; Jung Gi Kim; Hyokyung Sung; Zhiming Li; Elena Pereloma; Hyoung Seop Kim

doi:10.1038/s41467-022-34470-8

Mechanically derived short-range order and its impact on the multi-principal-element alloys

Jae Bok Seol, Won Seok Ko, Seok Su Sohn, Min Young Na, Hye Jung Chang, Yoon Uk Heo, Jung Gi Kim, Hyokyung Sung, Zhiming Li, Elena Pereloma, Hyoung Seop Kim

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Chemical short-range order in disordered solid solutions often emerges with specific heat treatments. Unlike thermally activated ordering, mechanically derived short-range order (MSRO) in a multi-principal-element Fe₄₀Mn₄₀Cr₁₀Co₁₀ (at%) alloy originates from tensile deformation at 77 K, and its degree/extent can be tailored by adjusting the loading rates under quasistatic conditions. The mechanical response and multi-length-scale characterisation pointed to the minor contribution of MSRO formation to yield strength, mechanical twinning, and deformation-induced displacive transformation. Scanning and high-resolution transmission electron microscopy and the anlaysis of electron diffraction patterns revealed the microstructural features responsible for MSRO and the dependence of the ordering degree/extent on the applied strain rates. Here, we show that underpinned by molecular dynamics, MSRO in the alloys with low stacking-fault energies forms when loaded at 77 K, and these systems that offer different perspectives on the process of strain-induced ordering transition are driven by crystalline lattice defects (dislocations and stacking faults).

Original language	English
Article number	6766
Journal	Nature communications
Volume	13
Issue number	1
DOIs	https://doi.org/10.1038/s41467-022-34470-8
Publication status	Published - 2022 Dec

Bibliographical note

Funding Information:
J.B.S. acknowledges financial support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (NRF−2021R1A2C4002622), funded by the Korea government (MSIT) (NRF−2022R1A5A1030054), and by Technology Innovation Program (Alchemist Project, 1415180672, Al-based supercritical materials discovery) funded by the Ministry of Trade, Industry & Energy, Korea. W.S.K. is financially supported by the Future Material Discovery Program of the Korea (No. 2019M3D1A1079214). S.S.S. is supported by the National Research Foundation of Korea (NRF−2020R1C1C1003554) and by the Korea Institute for Advancement of Technology (KIAT) grant funded by the Korean Government (MOTIE, P0002019, The Competency Development Program for Industry Specialist). M.Y.N., and H.J.C. are supported by the Ministry of Trade, Industry, and Energy (MOTIE) of Korea through the project No. N0002598 supervised by the Korea Institute for Advancement of Technology (KIAT). Z.L. acknowledges financial support from the Natural Science Foundation of Hunan Province in China (Grant No. 2021JJ10056). H.S.K. acknowledges financial support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF−2022R1A5A1030054).

Publisher Copyright:
© 2022, The Author(s).

ASJC Scopus subject areas

Physics and Astronomy(all)
Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)

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10.1038/s41467-022-34470-8

Cite this

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title = "Mechanically derived short-range order and its impact on the multi-principal-element alloys",

abstract = "Chemical short-range order in disordered solid solutions often emerges with specific heat treatments. Unlike thermally activated ordering, mechanically derived short-range order (MSRO) in a multi-principal-element Fe40Mn40Cr10Co10 (at%) alloy originates from tensile deformation at 77 K, and its degree/extent can be tailored by adjusting the loading rates under quasistatic conditions. The mechanical response and multi-length-scale characterisation pointed to the minor contribution of MSRO formation to yield strength, mechanical twinning, and deformation-induced displacive transformation. Scanning and high-resolution transmission electron microscopy and the anlaysis of electron diffraction patterns revealed the microstructural features responsible for MSRO and the dependence of the ordering degree/extent on the applied strain rates. Here, we show that underpinned by molecular dynamics, MSRO in the alloys with low stacking-fault energies forms when loaded at 77 K, and these systems that offer different perspectives on the process of strain-induced ordering transition are driven by crystalline lattice defects (dislocations and stacking faults).",

author = "Seol, {Jae Bok} and Ko, {Won Seok} and Sohn, {Seok Su} and Na, {Min Young} and Chang, {Hye Jung} and Heo, {Yoon Uk} and Kim, {Jung Gi} and Hyokyung Sung and Zhiming Li and Elena Pereloma and Kim, {Hyoung Seop}",

note = "Funding Information: J.B.S. acknowledges financial support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (NRF−2021R1A2C4002622), funded by the Korea government (MSIT) (NRF−2022R1A5A1030054), and by Technology Innovation Program (Alchemist Project, 1415180672, Al-based supercritical materials discovery) funded by the Ministry of Trade, Industry & Energy, Korea. W.S.K. is financially supported by the Future Material Discovery Program of the Korea (No. 2019M3D1A1079214). S.S.S. is supported by the National Research Foundation of Korea (NRF−2020R1C1C1003554) and by the Korea Institute for Advancement of Technology (KIAT) grant funded by the Korean Government (MOTIE, P0002019, The Competency Development Program for Industry Specialist). M.Y.N., and H.J.C. are supported by the Ministry of Trade, Industry, and Energy (MOTIE) of Korea through the project No. N0002598 supervised by the Korea Institute for Advancement of Technology (KIAT). Z.L. acknowledges financial support from the Natural Science Foundation of Hunan Province in China (Grant No. 2021JJ10056). H.S.K. acknowledges financial support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF−2022R1A5A1030054). Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

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doi = "10.1038/s41467-022-34470-8",

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AU - Ko, Won Seok

AU - Sohn, Seok Su

AU - Na, Min Young

AU - Chang, Hye Jung

AU - Heo, Yoon Uk

AU - Kim, Jung Gi

AU - Sung, Hyokyung

AU - Li, Zhiming

AU - Pereloma, Elena

AU - Kim, Hyoung Seop

N1 - Funding Information: J.B.S. acknowledges financial support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (NRF−2021R1A2C4002622), funded by the Korea government (MSIT) (NRF−2022R1A5A1030054), and by Technology Innovation Program (Alchemist Project, 1415180672, Al-based supercritical materials discovery) funded by the Ministry of Trade, Industry & Energy, Korea. W.S.K. is financially supported by the Future Material Discovery Program of the Korea (No. 2019M3D1A1079214). S.S.S. is supported by the National Research Foundation of Korea (NRF−2020R1C1C1003554) and by the Korea Institute for Advancement of Technology (KIAT) grant funded by the Korean Government (MOTIE, P0002019, The Competency Development Program for Industry Specialist). M.Y.N., and H.J.C. are supported by the Ministry of Trade, Industry, and Energy (MOTIE) of Korea through the project No. N0002598 supervised by the Korea Institute for Advancement of Technology (KIAT). Z.L. acknowledges financial support from the Natural Science Foundation of Hunan Province in China (Grant No. 2021JJ10056). H.S.K. acknowledges financial support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF−2022R1A5A1030054). Publisher Copyright: © 2022, The Author(s).

PY - 2022/12

Y1 - 2022/12

N2 - Chemical short-range order in disordered solid solutions often emerges with specific heat treatments. Unlike thermally activated ordering, mechanically derived short-range order (MSRO) in a multi-principal-element Fe40Mn40Cr10Co10 (at%) alloy originates from tensile deformation at 77 K, and its degree/extent can be tailored by adjusting the loading rates under quasistatic conditions. The mechanical response and multi-length-scale characterisation pointed to the minor contribution of MSRO formation to yield strength, mechanical twinning, and deformation-induced displacive transformation. Scanning and high-resolution transmission electron microscopy and the anlaysis of electron diffraction patterns revealed the microstructural features responsible for MSRO and the dependence of the ordering degree/extent on the applied strain rates. Here, we show that underpinned by molecular dynamics, MSRO in the alloys with low stacking-fault energies forms when loaded at 77 K, and these systems that offer different perspectives on the process of strain-induced ordering transition are driven by crystalline lattice defects (dislocations and stacking faults).

AB - Chemical short-range order in disordered solid solutions often emerges with specific heat treatments. Unlike thermally activated ordering, mechanically derived short-range order (MSRO) in a multi-principal-element Fe40Mn40Cr10Co10 (at%) alloy originates from tensile deformation at 77 K, and its degree/extent can be tailored by adjusting the loading rates under quasistatic conditions. The mechanical response and multi-length-scale characterisation pointed to the minor contribution of MSRO formation to yield strength, mechanical twinning, and deformation-induced displacive transformation. Scanning and high-resolution transmission electron microscopy and the anlaysis of electron diffraction patterns revealed the microstructural features responsible for MSRO and the dependence of the ordering degree/extent on the applied strain rates. Here, we show that underpinned by molecular dynamics, MSRO in the alloys with low stacking-fault energies forms when loaded at 77 K, and these systems that offer different perspectives on the process of strain-induced ordering transition are driven by crystalline lattice defects (dislocations and stacking faults).

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Mechanically derived short-range order and its impact on the multi-principal-element alloys

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