Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation

A heterostructuring strategy is an effective approach for abiding problems referred to as the strength-ductility trade-off. However, tailoring the heterostructure is an arduous problem. This work synthesized hierarchically heterogeneity by combining the eutectic high-entropy alloy (EHEA) and medium-...

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Main Authors: Sujung Son, Jungwan Lee, Peyman Asghari-Rad, Rae Eon Kim, Hyojin Park, Jae-il Jang, Wen Chen, Yoon-Uk Heo, Hyoung Seop Kim
Format: Article
Language:English
Published: Taylor & Francis Group 2023-11-01
Series:Materials Research Letters
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/21663831.2023.2258158
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author Sujung Son
Jungwan Lee
Peyman Asghari-Rad
Rae Eon Kim
Hyojin Park
Jae-il Jang
Wen Chen
Yoon-Uk Heo
Hyoung Seop Kim
author_facet Sujung Son
Jungwan Lee
Peyman Asghari-Rad
Rae Eon Kim
Hyojin Park
Jae-il Jang
Wen Chen
Yoon-Uk Heo
Hyoung Seop Kim
author_sort Sujung Son
collection DOAJ
description A heterostructuring strategy is an effective approach for abiding problems referred to as the strength-ductility trade-off. However, tailoring the heterostructure is an arduous problem. This work synthesized hierarchically heterogeneity by combining the eutectic high-entropy alloy (EHEA) and medium-entropy alloy powders through novel powder metallurgy-based severe plastic deformation (P-SPD). EHEA forms nano-scaled heterogeneity composed of FCC and B2, and the mixture of powder types forms micro-scale heterogeneity with hard and soft domains. This hierarchically heterogeneous microstructure leads to strong hetero-deformation-induced strengthening, achieving a yield strength of ∼1.5 GPa. The present P-SPD represents the feasibility of heterostructuring, aiding the development of HEAs.
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spelling doaj.art-0f3a506198104539b53d1a5c7ace46f12023-10-31T12:47:39ZengTaylor & Francis GroupMaterials Research Letters2166-38312023-11-01111191592410.1080/21663831.2023.2258158Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformationSujung Son0Jungwan Lee1Peyman Asghari-Rad2Rae Eon Kim3Hyojin Park4Jae-il Jang5Wen Chen6Yoon-Uk Heo7Hyoung Seop Kim8Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of KoreaDepartment of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of KoreaDepartment of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of KoreaGraduate Institute of Ferrous & Eco Materials Technology, Pohang University of Science and Technology (POSTECH), Pohang, Republic of KoreaDepartment of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of KoreaDivision of Materials Science and Engineering, Hanyang University, Seoul, Republic of KoreaDepartment of Mechanical and Industrial Engineering, University of Massachusetts, Amherst, MA, USAGraduate Institute of Ferrous & Eco Materials Technology, Pohang University of Science and Technology (POSTECH), Pohang, Republic of KoreaDepartment of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of KoreaA heterostructuring strategy is an effective approach for abiding problems referred to as the strength-ductility trade-off. However, tailoring the heterostructure is an arduous problem. This work synthesized hierarchically heterogeneity by combining the eutectic high-entropy alloy (EHEA) and medium-entropy alloy powders through novel powder metallurgy-based severe plastic deformation (P-SPD). EHEA forms nano-scaled heterogeneity composed of FCC and B2, and the mixture of powder types forms micro-scale heterogeneity with hard and soft domains. This hierarchically heterogeneous microstructure leads to strong hetero-deformation-induced strengthening, achieving a yield strength of ∼1.5 GPa. The present P-SPD represents the feasibility of heterostructuring, aiding the development of HEAs.https://www.tandfonline.com/doi/10.1080/21663831.2023.2258158High-entropy alloyshigh-pressure torsionmulti-materialsheterostructuresmechanical properties
spellingShingle Sujung Son
Jungwan Lee
Peyman Asghari-Rad
Rae Eon Kim
Hyojin Park
Jae-il Jang
Wen Chen
Yoon-Uk Heo
Hyoung Seop Kim
Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation
Materials Research Letters
High-entropy alloys
high-pressure torsion
multi-materials
heterostructures
mechanical properties
title Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation
title_full Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation
title_fullStr Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation
title_full_unstemmed Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation
title_short Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation
title_sort hierarchically heterogeneous microstructure and mechanical behavior of the multi materials prepared by powder severe plastic deformation
topic High-entropy alloys
high-pressure torsion
multi-materials
heterostructures
mechanical properties
url https://www.tandfonline.com/doi/10.1080/21663831.2023.2258158
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