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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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Development of Light-Weight TRIP/TWIP FCC High Entropy Alloy with High Specific Strength and Large Ductility
고비강도와 고연신을 가지는 다중변형기구 하이엔트로피 합금 개발
Kook Noh Yoon, Hyun Seok Oh, Je In Lee, Eun Soo Park윤국노, 오현석, 이제인, 박은수
Korean J. Met. Mater.
2021;59(12):857-869. Published online 2021 Nov 19
DOI:
https://doi.org/10.3365/KJMM.2021.59.12.857
Abstract
In this study we developed a novel (TRIP+TWIP) high entropy alloy (HEA) with high specific strength and large ductility. First, by controlling the atomic constitution of the 3d transition metals (Cr, Mn, Fe, Co, and Ni), we designed a light-weight TRIP-assisted dual-phase HEA with a non-equiatomic composition of Cr
22
Mn
6
Fe
40
Co
26
Ni
6
, which.....
More
Web of Science 1
Crossref 1
Development of Rare-Earth Element Based High Entropy Bulk Metallic Glasses
희토류 원소계 고엔트로피 벌크 비정질 합금 개발
Jinyeon Kim, Hyun Seok Oh, Jinwoo Kim, Eun Soo Park김진연, 오현석, 김진우, 박은수
Korean J. Met. Mater.
2018;56(1):14-25. Published online 2018 Jan 1
DOI:
https://doi.org/10.3365/KJMM.2018.56.1.14
Abstract
High entropy alloys (HEAs) are a relatively new class of metallic materials. HEAs lead to high mixing entropy and the formation of a simple solid solution rather than intermediate phases. This might be explained by the fact that the configurational entropy outweighs the enthalpy of formation of intermetallic compounds. Meanwhile,.....
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Crossref 1
Effect of Configurational Entropy of Mixing on Thermophysical Properties in Single Phase FCC Solid Solutions with Multi-Principal Elements
혼합엔트로피 제어에 따른 단일 FCC 고용체 합금의 물성변화 분석
Je In Lee, Hyun Seok Oh, Jun Hyuk Kim, Eun Soo Park이제인, 오현석, 김준혁, 박은수
Korean J. Met. Mater.
2017;55(1):1-9. Published online 2017 Jan 5
DOI:
https://doi.org/10.3365/KJMM.2017.55.1.1
Abstract
In the present study, we systematically investigated the effect of entropy of mixing (Δ
S
mix
) on the mechanical and thermal properties of single phase FCC solid solutions with multi-principal elements. An increase in Δ
S
mix
led to an increase in micro-hardness and a decrease in thermal conductivity (κ) due to severe lattice.....
More
Crossref 8
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