A novel light-weight refractory high-entropy alloy with high specific strength and intrinsic deformability

X. W. Liu; Z. C. Bai; X. F. Ding; J. Q. Yao; L. Wang; Y. Q. Su; Z. T. Fan; J. J. Guo

doi:10.1016/j.matlet.2020.129255

A novel light-weight refractory high-entropy alloy with high specific strength and intrinsic deformability

X. W. Liu
, Z. C. Bai
, X. F. Ding
, J. Q. Yao
, L. Wang
, Y. Q. Su^*
, Z. T. Fan
, J. J. Guo

^*Corresponding author for this work

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

66 Citations (Scopus)

Abstract

AlNb₂TiV, a novel, light-weight, refractory high-entropy alloy (RHEA), with high specific strength and excellent room-temperature deformability is identified. As cast, it has a dendritic microstructure with an ordered B2 phase, low density (~6.19 g/cm³), excellent specific yield strength (167 MPa*cm³/g) and deformability (strain >1.0 in compression). Slip occurs by glide of 1/2〈1 1 1〉 dislocations. Based on previous work, the Ti/Nb ratio of our RHEA falls in the optimal range for easy dislocation motion and good deformability.

Original language	English
Article number	129255
Journal	Materials Letters
Volume	287
DOIs	https://doi.org/10.1016/j.matlet.2020.129255
Publication status	Published - 15 Mar 2021
Externally published	Yes

Keywords

Deformability
Microstructure
Refractory high-entropy alloy
Solidification
Specific strength

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10.1016/j.matlet.2020.129255

Cite this

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title = "A novel light-weight refractory high-entropy alloy with high specific strength and intrinsic deformability",

abstract = "AlNb2TiV, a novel, light-weight, refractory high-entropy alloy (RHEA), with high specific strength and excellent room-temperature deformability is identified. As cast, it has a dendritic microstructure with an ordered B2 phase, low density (\textasciitilde{}6.19 g/cm3), excellent specific yield strength (167 MPa*cm3/g) and deformability (strain >1.0 in compression). Slip occurs by glide of 1/2〈1 1 1〉 dislocations. Based on previous work, the Ti/Nb ratio of our RHEA falls in the optimal range for easy dislocation motion and good deformability.",

keywords = "Deformability, Microstructure, Refractory high-entropy alloy, Solidification, Specific strength",

author = "Liu, \{X. W.\} and Bai, \{Z. C.\} and Ding, \{X. F.\} and Yao, \{J. Q.\} and L. Wang and Su, \{Y. Q.\} and Fan, \{Z. T.\} and Guo, \{J. J.\}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2021",

month = mar,

day = "15",

doi = "10.1016/j.matlet.2020.129255",

language = "English",

volume = "287",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A novel light-weight refractory high-entropy alloy with high specific strength and intrinsic deformability

AU - Liu, X. W.

AU - Bai, Z. C.

AU - Ding, X. F.

AU - Yao, J. Q.

AU - Wang, L.

AU - Su, Y. Q.

AU - Fan, Z. T.

AU - Guo, J. J.

PY - 2021/3/15

Y1 - 2021/3/15

N2 - AlNb2TiV, a novel, light-weight, refractory high-entropy alloy (RHEA), with high specific strength and excellent room-temperature deformability is identified. As cast, it has a dendritic microstructure with an ordered B2 phase, low density (~6.19 g/cm3), excellent specific yield strength (167 MPa*cm3/g) and deformability (strain >1.0 in compression). Slip occurs by glide of 1/2〈1 1 1〉 dislocations. Based on previous work, the Ti/Nb ratio of our RHEA falls in the optimal range for easy dislocation motion and good deformability.

AB - AlNb2TiV, a novel, light-weight, refractory high-entropy alloy (RHEA), with high specific strength and excellent room-temperature deformability is identified. As cast, it has a dendritic microstructure with an ordered B2 phase, low density (~6.19 g/cm3), excellent specific yield strength (167 MPa*cm3/g) and deformability (strain >1.0 in compression). Slip occurs by glide of 1/2〈1 1 1〉 dislocations. Based on previous work, the Ti/Nb ratio of our RHEA falls in the optimal range for easy dislocation motion and good deformability.

KW - Deformability

KW - Microstructure

KW - Refractory high-entropy alloy

KW - Solidification

KW - Specific strength

UR - https://www.scopus.com/pages/publications/85098783111

U2 - 10.1016/j.matlet.2020.129255

DO - 10.1016/j.matlet.2020.129255

M3 - Article

AN - SCOPUS:85098783111

SN - 0167-577X

VL - 287

JO - Materials Letters

JF - Materials Letters

M1 - 129255

ER -

A novel light-weight refractory high-entropy alloy with high specific strength and intrinsic deformability

Abstract

Keywords

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