Microstructural and Mechanical Characteristics of Non-Equiatomic High Entropy Alloy FeMnCoCr Prepared by Spark Plasma Sintering

In this study, a non-equiatomic high entropy alloy was fabricated using the spark plasma sintering method, and its microstructural features and mechanical properties were investigated. The chemical composition of FeMnCoCr was determined by using the entropy calculation related to the design of high...

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Main Authors: Namhyuk Seo, Junhyub Jeon, Seunggyu Choi, Young Hoon Moon, In-Jin Shon, Seok-Jae Lee
Format: Article
Language:English
Published: Polish Academy of Sciences 2020-07-01
Series:Archives of Metallurgy and Materials
Subjects:
Online Access:https://journals.pan.pl/Content/116372/PDF/AMM-2020-3-05-Seok-Jae-Lee.pdf
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author Namhyuk Seo
Junhyub Jeon
Seunggyu Choi
Young Hoon Moon
In-Jin Shon
Seok-Jae Lee
author_facet Namhyuk Seo
Junhyub Jeon
Seunggyu Choi
Young Hoon Moon
In-Jin Shon
Seok-Jae Lee
author_sort Namhyuk Seo
collection DOAJ
description In this study, a non-equiatomic high entropy alloy was fabricated using the spark plasma sintering method, and its microstructural features and mechanical properties were investigated. The chemical composition of FeMnCoCr was determined by using the entropy calculation related to the design of high entropy alloys. A bulk sample with the same composition was also prepared using the conventional metallurgical processes of casting and hot rolling. The microstructures of the samples fabricated by these different processes were compared by microscope observation, and a quantitative phase analysis was carried out using FE-SEM. Hardness measurement was used to evaluate mechanical properties. Particular attention was paid to microstructural changes due to heat treatment, which was analyzed by considering how austenite stability is affected by grain refinement.
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spelling doaj.art-d5c9c416b6f446a7a0239212ddb55ab62022-12-22T03:41:51ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092020-07-01vol. 65No 310051009https://doi.org/10.24425/amm.2020.133207Microstructural and Mechanical Characteristics of Non-Equiatomic High Entropy Alloy FeMnCoCr Prepared by Spark Plasma SinteringNamhyuk SeoJunhyub JeonSeunggyu ChoiYoung Hoon MoonIn-Jin ShonSeok-Jae Leehttps://orcid.org/0000-0003-2463-8706In this study, a non-equiatomic high entropy alloy was fabricated using the spark plasma sintering method, and its microstructural features and mechanical properties were investigated. The chemical composition of FeMnCoCr was determined by using the entropy calculation related to the design of high entropy alloys. A bulk sample with the same composition was also prepared using the conventional metallurgical processes of casting and hot rolling. The microstructures of the samples fabricated by these different processes were compared by microscope observation, and a quantitative phase analysis was carried out using FE-SEM. Hardness measurement was used to evaluate mechanical properties. Particular attention was paid to microstructural changes due to heat treatment, which was analyzed by considering how austenite stability is affected by grain refinement.https://journals.pan.pl/Content/116372/PDF/AMM-2020-3-05-Seok-Jae-Lee.pdfnon-equiatomic high entropy alloysphase stabilityheat treatmentmicro-structural characteristics
spellingShingle Namhyuk Seo
Junhyub Jeon
Seunggyu Choi
Young Hoon Moon
In-Jin Shon
Seok-Jae Lee
Microstructural and Mechanical Characteristics of Non-Equiatomic High Entropy Alloy FeMnCoCr Prepared by Spark Plasma Sintering
Archives of Metallurgy and Materials
non-equiatomic high entropy alloys
phase stability
heat treatment
micro-structural characteristics
title Microstructural and Mechanical Characteristics of Non-Equiatomic High Entropy Alloy FeMnCoCr Prepared by Spark Plasma Sintering
title_full Microstructural and Mechanical Characteristics of Non-Equiatomic High Entropy Alloy FeMnCoCr Prepared by Spark Plasma Sintering
title_fullStr Microstructural and Mechanical Characteristics of Non-Equiatomic High Entropy Alloy FeMnCoCr Prepared by Spark Plasma Sintering
title_full_unstemmed Microstructural and Mechanical Characteristics of Non-Equiatomic High Entropy Alloy FeMnCoCr Prepared by Spark Plasma Sintering
title_short Microstructural and Mechanical Characteristics of Non-Equiatomic High Entropy Alloy FeMnCoCr Prepared by Spark Plasma Sintering
title_sort microstructural and mechanical characteristics of non equiatomic high entropy alloy femncocr prepared by spark plasma sintering
topic non-equiatomic high entropy alloys
phase stability
heat treatment
micro-structural characteristics
url https://journals.pan.pl/Content/116372/PDF/AMM-2020-3-05-Seok-Jae-Lee.pdf
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