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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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CuCrFeMnNi 고엔트로피 합금의 열처리에 따른 미세조직 및 기계적 물성 변화 연구
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송호섭, 송성호, 조재영, 송기안
Korean J. Met. Mater.
2023;61(6):449-457. Published online 2023 May 18
DOI:
https://doi.org/10.3365/KJMM.2023.61.6.449
Abstract
High entropy alloys (HEAs) are defined as a multi-element alloy including more than 4 elements with near equi-atomic percentage. In general, the configurational entropy of the HEAs is known to be sufficient to stabilize a single solid solution, such as body-centered cubic (BCC), face-centered cubic (FCC) and hexagonal-closed pack (HCP)......
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고비강도와 고연신을 가지는 다중변형기구 하이엔트로피 합금 개발
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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 Cr
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Web of Science 1
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CoCrFeMnNi 고엔트로피 합금에서 탄소 첨가 및 재결정열처리가 미세구조 및 기계적 특성에 미치는 영향
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고준영, 송재숙, 홍순익
Korean J. Met. Mater.
2018;56(1):26-33. Published online 2018 Jan 1
DOI:
https://doi.org/10.3365/KJMM.2018.56.1.26
Abstract
The effect of carbon addition on the cast and rolled microstructures of CoCrFeMnNi high entropy alloys were studied. Both as-cast CoCrFeMnNi and CoCrFeMnNiC0.1 alloys have a dendritic microstructure. Small carbide particles were observed at the inter-dendritic region in the as-cast CoCrFeMnNiC0.1 and elongated-grained structure with aligned carbides were developed at.....
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Crossref 5
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CoCrFeMnNi 고엔트로피합금 주조재의 미세조직 및 기계적 특성
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강민주, 원종우, 임가람, 박상협, 서성문, 나영상
Korean J. Met. Mater.
2017;55(10):732-738. Published online 2017 Sep 28
DOI:
https://doi.org/10.3365/KJMM.2017.55.10.732
Abstract
In this study, we made large-scale ingots of CoCrFeMnNi high entropy alloy by vacuum induction melting. The as-cast CoCrFeMnNi high entropy alloy contained a high proportion of columnar structures with a few equiaxed grains, and showed single phase fcc solid solutions without macro segregation and low interstitial levels. The tensile.....
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Crossref 4
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고엔트로피 합금강의 시효경화 및 재결정 연화현상
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최병학, 장현수, 김형섭, 문종언
Korean J. Met. Mater.
2017;55(10):684-688. Published online 2017 Sep 28
DOI:
https://doi.org/10.3365/KJMM.2017.55.10.684
Abstract
Age hardening and re-crystallization softening of a type of high entropy alloy, CoCrFeMnNi, was performed to investigate the relationship between microstructure and the property of mechanical hardness. Equiatomic CoCrFeMnNi was produced by casting followed by homogenizing, cold rolling and post heat treatments. TEM analysis revealed that the microstructure of the.....
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