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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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열가소성 성형을 이용한 비정질 합금의 홀로그램 임프린팅 공정 최적화
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류욱하, 류채우, 김경준, 곽민경, 박은수
Korean J. Met. Mater.
2022;60(9):644-653. Published online 2022 Aug 30
DOI:
https://doi.org/10.3365/KJMM.2022.60.9.644
Abstract
The thermoplastic forming (TPF) process of metallic glass (MG) is a unique and powerful method that cannot be performed using conventional crystalline alloys. Because the mechanical and thermal properties of MGs are more favorable with smaller sample sizes, TPF is particularly useful for microscale and nanoscale part molding and micro-patterning......
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Web of Science 1
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방전플라즈마 소결법에 의해 제조된 Cu-Ni-Zr-Ti 비정질 기지 복합재료의 미세조직 및 기계적 특성
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신다운, 민 홍, 이진규
Korean J. Met. Mater.
2021;59(5):281-288. Published online 2021 Apr 6
DOI:
https://doi.org/10.3365/KJMM.2021.59.5.281
Abstract
In the present study, Cu
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Ni
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bulk metallic glass composites were developed by spark plasma sintering(SPS) using gas atomized Cu
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metallic glass powders and Ta powders. Metallic glass composites with Ta phase were fabricated by SPS. The successful consolidation of Cu
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metallic glass matrix composites with the Ta phase was achieved.....
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Web of Science 1
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결정질 Pb 제2상을 포함하는 Al 계 비정질 합금 개발
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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 Al
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(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.....
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Web of Science 2
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NdFeB 자석 스크랩을 이용한 Mg-Cu-Gd-Nd 비정질 합금의 제조 및 특성
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윤덕환, 민홍, 채홍준, 이진규
Korean J. Met. Mater.
2019;57(10):617-623. Published online 2019 Sep 6
DOI:
https://doi.org/10.3365/KJMM.2019.57.10.617
Abstract
In the present study, new Mg-based bulk metallic glasses have been developed in a Mg-Cu-GdNd based system using a Mg-Nd byproduct obtained from the recycling process of NdFeB magnet scrap through liquid metal extraction. The Mg-Cu-Gd-Nd bulk metallic glasses with a diameter of 2 mm are fabricated by injection casting.....
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희토류 원소계 고엔트로피 벌크 비정질 합금 개발
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김진연, 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
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비정질기지 복합재의 미세조직과 기계적 특성에 미치는 냉각속도의 영향
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박선용, 임가람, 나영상, 김승언, 최윤석
Korean J. Met. Mater.
2016;54(11):802-807. Published online 2016 Nov 5
DOI:
https://doi.org/10.3365/KJMM.2016.54.11.802
Abstract
In this paper, we demonstrate that the microstructure and mechanical properties in the Ti
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Cu
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Pd
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alloy can be tailored by controlling the cooling rate during solidification. A lower cooling rate increases the volume fraction of crystalline phase such as B2 but decreases the free volume of the glassy matrix. The increase.....
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