Probing the Respective Strengthening Mechanism of High-entropy (CoCrFeNi/CoCrFeNiMn) and Single-principle-element (Cu-4Al) Alloys

Liwen Fan; Jian Zhou; Xiaotian Fang; Yanfei Wang; Xiaolong Ma; Ming-Hung Tsai; Yuntian Zhu

doi:10.1016/j.jallcom.2023.172185

Probing the Respective Strengthening Mechanism of High-entropy (CoCrFeNi/CoCrFeNiMn) and Single-principle-element (Cu-4Al) Alloys

Liwen Fan, Jian Zhou^*, Xiaotian Fang^*, Yanfei Wang, Xiaolong Ma, Ming-Hung Tsai, Yuntian Zhu^*

^*Corresponding author for this work

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

7 Citations (Scopus)

Abstract

The strengthening mechanism of high-entropy alloys (CoCrFeNi/CoCrFeNiMn) is investigated and compared with a single-principle-element alloy (Cu-4Al) with similar stacking fault energy. Hall-Petch effect dominates the strain hardening of both alloys during progressive grain refinement to the ultrafine regime. Moreover, the high density of Lomer-Cottrell locks offers unique and extra hardening to ultrafine-grained high-entropy alloys. © 2023 Elsevier B.V.

Original language	English
Article number	172185
Journal	Journal of Alloys and Compounds
Volume	969
Online published	15 Sept 2023
DOIs	https://doi.org/10.1016/j.jallcom.2023.172185
Publication status	Published - 25 Dec 2023

Research Keywords

Deformation mechanism
High-entropy alloys
Lomer-Cottrell locks
Mechanical properties

RGC Funding Information

RGC-funded

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10.1016/j.jallcom.2023.172185

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@article{b7381546ce93499781bea0a800d33067,

title = "Probing the Respective Strengthening Mechanism of High-entropy (CoCrFeNi/CoCrFeNiMn) and Single-principle-element (Cu-4Al) Alloys",

abstract = "The strengthening mechanism of high-entropy alloys (CoCrFeNi/CoCrFeNiMn) is investigated and compared with a single-principle-element alloy (Cu-4Al) with similar stacking fault energy. Hall-Petch effect dominates the strain hardening of both alloys during progressive grain refinement to the ultrafine regime. Moreover, the high density of Lomer-Cottrell locks offers unique and extra hardening to ultrafine-grained high-entropy alloys. {\textcopyright} 2023 Elsevier B.V.",

keywords = "Deformation mechanism, High-entropy alloys, Lomer-Cottrell locks, Mechanical properties",

author = "Liwen Fan and Jian Zhou and Xiaotian Fang and Yanfei Wang and Xiaolong Ma and Ming-Hung Tsai and Yuntian Zhu",

year = "2023",

month = dec,

day = "25",

doi = "10.1016/j.jallcom.2023.172185",

language = "English",

volume = "969",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Probing the Respective Strengthening Mechanism of High-entropy (CoCrFeNi/CoCrFeNiMn) and Single-principle-element (Cu-4Al) Alloys

AU - Fan, Liwen

AU - Zhou, Jian

AU - Fang, Xiaotian

AU - Wang, Yanfei

AU - Ma, Xiaolong

AU - Tsai, Ming-Hung

AU - Zhu, Yuntian

PY - 2023/12/25

Y1 - 2023/12/25

N2 - The strengthening mechanism of high-entropy alloys (CoCrFeNi/CoCrFeNiMn) is investigated and compared with a single-principle-element alloy (Cu-4Al) with similar stacking fault energy. Hall-Petch effect dominates the strain hardening of both alloys during progressive grain refinement to the ultrafine regime. Moreover, the high density of Lomer-Cottrell locks offers unique and extra hardening to ultrafine-grained high-entropy alloys. © 2023 Elsevier B.V.

AB - The strengthening mechanism of high-entropy alloys (CoCrFeNi/CoCrFeNiMn) is investigated and compared with a single-principle-element alloy (Cu-4Al) with similar stacking fault energy. Hall-Petch effect dominates the strain hardening of both alloys during progressive grain refinement to the ultrafine regime. Moreover, the high density of Lomer-Cottrell locks offers unique and extra hardening to ultrafine-grained high-entropy alloys. © 2023 Elsevier B.V.

KW - Deformation mechanism

KW - High-entropy alloys

KW - Lomer-Cottrell locks

KW - Mechanical properties

UR - http://www.scopus.com/inward/record.url?scp=85173436261&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85173436261&origin=recordpage

U2 - 10.1016/j.jallcom.2023.172185

DO - 10.1016/j.jallcom.2023.172185

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

VL - 969

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 172185

ER -

Probing the Respective Strengthening Mechanism of High-entropy (CoCrFeNi/CoCrFeNiMn) and Single-principle-element (Cu-4Al) Alloys

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GRF: Ultrastrong Dual-phase Heterostructure Low C.rbon Steel Reinforced by Ultra Nano Lamellae

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Probing the Respective Strengthening Mechanism of High-entropy (CoCrFeNi/CoCrFeNiMn) and Single-principle-element (Cu-4Al) Alloys

Abstract

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

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GRF: Ultrastrong Dual-phase Heterostructure Low C.rbon Steel Reinforced by Ultra Nano Lamellae

Cite this