Exceptional hardness in multiprincipal element alloys via hierarchical oxygen heterogeneities

David C. Beaudry; Michael J. Waters; Gianna M. Valentino; Daniel L. Foley; Elaf Anber; Yevgeny Rakita; Charlie J. Brandenburg; Jean Philippe Couzinié; Loïc Perrière; Toshihiro Aoki; Keith E. Knipling; Patrick G. Callahan; Benjamin W.Y. Redemann; Tyrel M. McQueen; Elizabeth J. Opila; James M. Rondinelli; Mitra L. Taheri

doi:10.1126/sciadv.ado9697

Exceptional hardness in multiprincipal element alloys via hierarchical oxygen heterogeneities

David C. Beaudry, Michael J. Waters, Gianna M. Valentino, Daniel L. Foley, Elaf Anber, Yevgeny Rakita, Charlie J. Brandenburg, Jean Philippe Couzinié, Loïc Perrière, Toshihiro Aoki, Keith E. Knipling, Patrick G. Callahan, Benjamin W.Y. Redemann, Tyrel M. McQueen, Elizabeth J. Opila, James M. Rondinelli, Mitra L. Taheri

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

Abstract

Refractory multiprincipal element alloys (RMPEAs) are potential successors to incumbent high-temperature structural alloys, although efforts to improve oxidation resistance with large additions of passivating elements have led to embrittlement. RMPEAs containing group IV and V elements have a balance of properties including moderate ductility, low density, and the necessary formability. We find that oxidation of group IV-V RMPEAs induces hierarchical heterogeneities, ranging from nanoscale interstitial complexes to tertiary phases. This microstructural hierarchy considerably enhances hardness without indentation cracking, with values ranging between 12.1 and 22.6 GPa from the oxide-adjacent metal to the surface oxides, a 3.7 to 6.8× increase over the interstitial-free alloy. Our fundamental understanding of the oxygen influence on phase formation informs future alloy design to enhance oxidation resistance and obtain exceptional hardness while preserving plasticity.

Original language	English
Article number	eado9697
Journal	Science advances
Volume	10
Issue number	38
DOIs	https://doi.org/10.1126/sciadv.ado9697
State	Published - 20 Sep 2024
Externally published	Yes

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Beaudry, D. C., Waters, M. J., Valentino, G. M., Foley, D. L., Anber, E., Rakita, Y., Brandenburg, C. J., Couzinié, J. P., Perrière, L., Aoki, T., Knipling, K. E., Callahan, P. G., Redemann, B. W. Y., McQueen, T. M., Opila, E. J., Rondinelli, J. M., & Taheri, M. L. (2024). Exceptional hardness in multiprincipal element alloys via hierarchical oxygen heterogeneities. Science advances, 10(38), Article eado9697. https://doi.org/10.1126/sciadv.ado9697

@article{8fd5ed3155e84809a680f8923581dc14,

title = "Exceptional hardness in multiprincipal element alloys via hierarchical oxygen heterogeneities",

abstract = "Refractory multiprincipal element alloys (RMPEAs) are potential successors to incumbent high-temperature structural alloys, although efforts to improve oxidation resistance with large additions of passivating elements have led to embrittlement. RMPEAs containing group IV and V elements have a balance of properties including moderate ductility, low density, and the necessary formability. We find that oxidation of group IV-V RMPEAs induces hierarchical heterogeneities, ranging from nanoscale interstitial complexes to tertiary phases. This microstructural hierarchy considerably enhances hardness without indentation cracking, with values ranging between 12.1 and 22.6 GPa from the oxide-adjacent metal to the surface oxides, a 3.7 to 6.8× increase over the interstitial-free alloy. Our fundamental understanding of the oxygen influence on phase formation informs future alloy design to enhance oxidation resistance and obtain exceptional hardness while preserving plasticity.",

author = "Beaudry, {David C.} and Waters, {Michael J.} and Valentino, {Gianna M.} and Foley, {Daniel L.} and Elaf Anber and Yevgeny Rakita and Brandenburg, {Charlie J.} and Couzini{\'e}, {Jean Philippe} and Lo{\"i}c Perri{\`e}re and Toshihiro Aoki and Knipling, {Keith E.} and Callahan, {Patrick G.} and Redemann, {Benjamin W.Y.} and McQueen, {Tyrel M.} and Opila, {Elizabeth J.} and Rondinelli, {James M.} and Taheri, {Mitra L.}",

note = "Publisher Copyright: {\textcopyright} 2024 th Authors, some rights reserved;",

year = "2024",

month = sep,

day = "20",

doi = "10.1126/sciadv.ado9697",

language = "English",

volume = "10",

journal = "Science advances",

issn = "2375-2548",

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Beaudry, DC, Waters, MJ, Valentino, GM, Foley, DL, Anber, E, Rakita, Y, Brandenburg, CJ, Couzinié, JP, Perrière, L, Aoki, T, Knipling, KE, Callahan, PG, Redemann, BWY, McQueen, TM, Opila, EJ, Rondinelli, JM & Taheri, ML 2024, 'Exceptional hardness in multiprincipal element alloys via hierarchical oxygen heterogeneities', Science advances, vol. 10, no. 38, eado9697. https://doi.org/10.1126/sciadv.ado9697

TY - JOUR

T1 - Exceptional hardness in multiprincipal element alloys via hierarchical oxygen heterogeneities

AU - Beaudry, David C.

AU - Waters, Michael J.

AU - Valentino, Gianna M.

AU - Foley, Daniel L.

AU - Anber, Elaf

AU - Rakita, Yevgeny

AU - Brandenburg, Charlie J.

AU - Couzinié, Jean Philippe

AU - Perrière, Loïc

AU - Aoki, Toshihiro

AU - Knipling, Keith E.

AU - Callahan, Patrick G.

AU - Redemann, Benjamin W.Y.

AU - McQueen, Tyrel M.

AU - Opila, Elizabeth J.

AU - Rondinelli, James M.

AU - Taheri, Mitra L.

PY - 2024/9/20

Y1 - 2024/9/20

N2 - Refractory multiprincipal element alloys (RMPEAs) are potential successors to incumbent high-temperature structural alloys, although efforts to improve oxidation resistance with large additions of passivating elements have led to embrittlement. RMPEAs containing group IV and V elements have a balance of properties including moderate ductility, low density, and the necessary formability. We find that oxidation of group IV-V RMPEAs induces hierarchical heterogeneities, ranging from nanoscale interstitial complexes to tertiary phases. This microstructural hierarchy considerably enhances hardness without indentation cracking, with values ranging between 12.1 and 22.6 GPa from the oxide-adjacent metal to the surface oxides, a 3.7 to 6.8× increase over the interstitial-free alloy. Our fundamental understanding of the oxygen influence on phase formation informs future alloy design to enhance oxidation resistance and obtain exceptional hardness while preserving plasticity.

AB - Refractory multiprincipal element alloys (RMPEAs) are potential successors to incumbent high-temperature structural alloys, although efforts to improve oxidation resistance with large additions of passivating elements have led to embrittlement. RMPEAs containing group IV and V elements have a balance of properties including moderate ductility, low density, and the necessary formability. We find that oxidation of group IV-V RMPEAs induces hierarchical heterogeneities, ranging from nanoscale interstitial complexes to tertiary phases. This microstructural hierarchy considerably enhances hardness without indentation cracking, with values ranging between 12.1 and 22.6 GPa from the oxide-adjacent metal to the surface oxides, a 3.7 to 6.8× increase over the interstitial-free alloy. Our fundamental understanding of the oxygen influence on phase formation informs future alloy design to enhance oxidation resistance and obtain exceptional hardness while preserving plasticity.

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DO - 10.1126/sciadv.ado9697

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AN - SCOPUS:85204512359

SN - 2375-2548

VL - 10

JO - Science advances

JF - Science advances

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M1 - eado9697

ER -

Exceptional hardness in multiprincipal element alloys via hierarchical oxygen heterogeneities

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