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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 Park
윤국노, 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 Cr22Mn6Fe40Co26Ni6, which..... More

                   Web of Science 1  Crossref 1
A Brief Review on the Ferroelectric Fluorite-Structured Nanolaminate
강유전성 플루오라이트 구조 기반 나노라미네이트 리뷰
Kun Yang, Ju Yong Park, Dong Hyun Lee, Se Hyun Kim, Geun Taek Yu, Geun Hyeong Park, Eun Been Lee, Je In Lee, Min Hyuk Park
양건, 박주용, 이동현, 김세현, 유근택, 박근형, 이은빈, 이제인, 박민혁
Korean J. Met. Mater. 2021;59(12):849-856.   Published online 2021 Nov 19
DOI: https://doi.org/10.3365/KJMM.2021.59.12.849

Abstract
Ferroelectricity can be induced in fluorite-structured oxides such as HfO2 and ZrO2, a feature of increasing interest in both academia and industry. Initially, most research focused on solid solution films, but recently, it has been suggested that nanolaminates with independent HfO2 and ZrO2 layers may show electrical and physical properties..... More

                
Development of Al-Based Metallic Glass Composites Containing Pb-Rich Crystalline 2nd Phase
결정질 Pb 제2상을 포함하는 Al 계 비정질 합금 개발
Wan Kim, Jinwoo Kim, Je In Lee, Eun Soo Park
김완, 김진우, 이제인, 박은수
Korean J. Met. Mater. 2020;58(2):77-86.   Published online 2020 Jan 8
DOI: https://doi.org/10.3365/KJMM.2020.58.2.77

Abstract
Liquid immiscible alloy systems present a unique opportunity for designing composites with sphere-dispersed and/or interconnected microstructures. Herein, we demonstrate that the addition of Pb in Al84TM10RE6 (TM=Ni,Co,Fe,Ti, RE=La,Ce,Nd,Gd,Y) metallic glasses can result in liquid-liquid phase separation in a liquid immiscibility gap and substantially solidifies into a Pb-rich crystalline phase and..... More

                   Web of Science 2  Crossref 2
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 Park
이제인, 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 (ΔSmix) on the mechanical and thermal properties of single phase FCC solid solutions with multi-principal elements. An increase in ΔSmix 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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