Formation of single-phased B2 multi-principal element intermetallics: From experiments to modeling

Weijiang Zhao; Hang Wang; Quanfeng He; Hu Li; Li Wang; Bin Liu; Yong Liu; Yong Yang

doi:10.1016/j.scriptamat.2024.116437

Formation of single-phased B2 multi-principal element intermetallics: From experiments to modeling

Weijiang Zhao
, Hang Wang
, Quanfeng He
, Hu Li
, Li Wang
, Bin Liu
, Yong Liu^*
, Yong Yang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

5 Citations (Scopus)

Abstract

In this study, a variety of Co-Ni-Ti-Zr alloys with various compositions were examined to identify potential single-phase B2 intermetallics. While classical theoretical models suggested that most compositions would present multiple phases or even amorphous phases, the equiatomic CoNiTiZr alloy revealed a stable single-phased B2 structure even under extended annealing at temperatures approaching its melting point. Notably, this alloy showcased desirable properties, such as a strong Elinvar effect and a high elastic strain limit. To aid in the design of B2 multi-principal elemental intermetallics (MPEIs), we proposed a pseudo-binary system model that counts for both chemical long-range order across two sublattices and random atom mixing within each sublattice. The outcome of this study is expected to accelerate the identification of valuable B2 MPEIs. © 2024 Acta Materialia Inc.

Original language	English
Article number	116437
Journal	Scripta Materialia
Volume	256
Online published	30 Oct 2024
DOIs	https://doi.org/10.1016/j.scriptamat.2024.116437
Publication status	Published - 1 Feb 2025

Funding

The research of YY is supported by university grants council (RGC), the Hong Kong government, through the general research fund (GRF) with the grant numbers of CityU 11201721 and CityU 11202924. The research of YL is supported by the National Natural Science Foundation of China [grant numbers U20A20236].

Research Keywords

Alloy design
B2 Intermetallics
High entropy effect
Multi-principal element intermetallics

RGC Funding Information

RGC-funded

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10.1016/j.scriptamat.2024.116437

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title = "Formation of single-phased B2 multi-principal element intermetallics: From experiments to modeling",

abstract = "In this study, a variety of Co-Ni-Ti-Zr alloys with various compositions were examined to identify potential single-phase B2 intermetallics. While classical theoretical models suggested that most compositions would present multiple phases or even amorphous phases, the equiatomic CoNiTiZr alloy revealed a stable single-phased B2 structure even under extended annealing at temperatures approaching its melting point. Notably, this alloy showcased desirable properties, such as a strong Elinvar effect and a high elastic strain limit. To aid in the design of B2 multi-principal elemental intermetallics (MPEIs), we proposed a pseudo-binary system model that counts for both chemical long-range order across two sublattices and random atom mixing within each sublattice. The outcome of this study is expected to accelerate the identification of valuable B2 MPEIs. {\textcopyright} 2024 Acta Materialia Inc.",

keywords = "Alloy design, B2 Intermetallics, High entropy effect, Multi-principal element intermetallics",

author = "Weijiang Zhao and Hang Wang and Quanfeng He and Hu Li and Li Wang and Bin Liu and Yong Liu and Yong Yang",

year = "2025",

month = feb,

day = "1",

doi = "10.1016/j.scriptamat.2024.116437",

language = "English",

volume = "256",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

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TY - JOUR

T1 - Formation of single-phased B2 multi-principal element intermetallics

T2 - From experiments to modeling

AU - Zhao, Weijiang

AU - Wang, Hang

AU - He, Quanfeng

AU - Li, Hu

AU - Wang, Li

AU - Liu, Bin

AU - Liu, Yong

AU - Yang, Yong

PY - 2025/2/1

Y1 - 2025/2/1

N2 - In this study, a variety of Co-Ni-Ti-Zr alloys with various compositions were examined to identify potential single-phase B2 intermetallics. While classical theoretical models suggested that most compositions would present multiple phases or even amorphous phases, the equiatomic CoNiTiZr alloy revealed a stable single-phased B2 structure even under extended annealing at temperatures approaching its melting point. Notably, this alloy showcased desirable properties, such as a strong Elinvar effect and a high elastic strain limit. To aid in the design of B2 multi-principal elemental intermetallics (MPEIs), we proposed a pseudo-binary system model that counts for both chemical long-range order across two sublattices and random atom mixing within each sublattice. The outcome of this study is expected to accelerate the identification of valuable B2 MPEIs. © 2024 Acta Materialia Inc.

AB - In this study, a variety of Co-Ni-Ti-Zr alloys with various compositions were examined to identify potential single-phase B2 intermetallics. While classical theoretical models suggested that most compositions would present multiple phases or even amorphous phases, the equiatomic CoNiTiZr alloy revealed a stable single-phased B2 structure even under extended annealing at temperatures approaching its melting point. Notably, this alloy showcased desirable properties, such as a strong Elinvar effect and a high elastic strain limit. To aid in the design of B2 multi-principal elemental intermetallics (MPEIs), we proposed a pseudo-binary system model that counts for both chemical long-range order across two sublattices and random atom mixing within each sublattice. The outcome of this study is expected to accelerate the identification of valuable B2 MPEIs. © 2024 Acta Materialia Inc.

KW - Alloy design

KW - B2 Intermetallics

KW - High entropy effect

KW - Multi-principal element intermetallics

UR - https://www.scopus.com/pages/publications/85207595160

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85207595160&origin=recordpage

U2 - 10.1016/j.scriptamat.2024.116437

DO - 10.1016/j.scriptamat.2024.116437

M3 - RGC 21 - Publication in refereed journal

SN - 1359-6462

VL - 256

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 116437

ER -

Formation of single-phased B2 multi-principal element intermetallics: From experiments to modeling

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GRF: Design of Strong-Yet-Plastic Distorted High Entropy Intermetallic Alloys with Superior High Temperature Performance

GRF: Development of Hysteresis Free Super-Elastic High Entropy Alloys: From Fundamental Understanding to Alloy Design

Cite this

Formation of single-phased B2 multi-principal element intermetallics: From experiments to modeling

Abstract

Funding

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

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Projects

GRF: Design of Strong-Yet-Plastic Distorted High Entropy Intermetallic Alloys with Superior High Temperature Performance

GRF: Development of Hysteresis Free Super-Elastic High Entropy Alloys: From Fundamental Understanding to Alloy Design

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