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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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개량 Al-0.7Mn 합금의 미세조직, 부식 저항성 및 인장 특성
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황원구, 강태훈, 최호준, 신영철, 이승철, 이기안
Korean J. Met. Mater.
2024;62(11):886-896. Published online 2024 Nov 5
DOI:
https://doi.org/10.3365/KJMM.2024.62.11.886
Abstract
A modified alloy (Al-0.7Mn) was designed and fabricated with an increased Mn content up to 0.7wt.% and a controlled Fe content of 0.1wt.% and compared with the conventional Al3102 (Al-0.3Mn) alloy using the air-slip casting process. Both alloys were homogenized at 510°C for 10 hours and then air-cooled. The microstructure,.....
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고신뢰성 적층 세라믹 커패시터를 위한 침식방지형 주석도금액 개발
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구본일, 김준성, 손유진, 민경석, 백성현
Korean J. Met. Mater.
2024;62(3):180-189. Published online 2024 Mar 5
DOI:
https://doi.org/10.3365/KJMM.2024.62.3.180
Abstract
Capacitors not only store and release electricity but selectively conduct alternating current. Among the various types of capacitors, multi-layer ceramic capacitors (MLCCs) have been widely used in automotive, smartphone, and wearable devices because of their compact size and high capacitance capabilities. In this study, we have developed an electrolyte for.....
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Korean J. Met. Mater.
2022;60(1):46-52. Published online 2021 Dec 10
DOI:
https://doi.org/10.3365/KJMM.2022.60.1.46
Abstract
This study evaluated changes in delta-ferrite content depending on the preheating of AISI 316L stainless steel. We also determined the reasons for the variation in delta-ferrite content, which affects corrosion resistance. Changes in delta-ferrite content after preheating was confirmed using a Feritscope, and the microstructure was analyzed using optical microscopy.....
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Web of Science 7
Crossref 6
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Korean J. Met. Mater.
2022;60(1):26-34. Published online 2021 Dec 10
DOI:
https://doi.org/10.3365/KJMM.2022.60.1.26
Abstract
This study was conducted to evaluate the corrosion resistance and optimize the heat-treatment process of AISI 439 ferrite stainless steel silicon and tin alloys with reduced chromium. The microstructure of the specimens and deposition under each condition were analyzed. The production of oxide films was compared based on the thickness.....
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Korean J. Met. Mater.
2021;59(11):821-828. Published online 2021 Oct 28
DOI:
https://doi.org/10.3365/KJMM.2021.59.11.821
Abstract
A three-dimensionally interconnected graphene-reinforced Cu (3Di Gr-Cu) composite was synthesized using a simple two-step process technique which involves the mechanical compaction of micronsized Cu particles followed by chemical vapor deposition (CVD) at 995 ℃. The microstructural properties of pure Cu and the 3Di Gr-Cu composite were investigated by optical.....
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Web of Science 2
Crossref 2
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내식성 향상을 위한 기능성 초발수 스테인리스 스틸 (SUS 304) 표면 연구
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박영주, 정찬영
Korean J. Met. Mater.
2021;59(4):217-222. Published online 2021 Mar 24
DOI:
https://doi.org/10.3365/KJMM.2021.59.4.217
Abstract
Stainless steel is a metal with excellent workability, economy, and corrosion resistance, so it is used in various industrial applications including the marine, machinery, electronic parts, piping, power generation, and nuclear power fields. However, in contaminated environments such as marine and gas pipelines, stainless steel has problems, including surface aging.....
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Web of Science 5
Crossref 4
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AZ31 마그네슘 합금의 플라즈마전해 산화막 두께 성장에 따른 내식특성
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최보은, 정원섭, 김용환
Korean J. Met. Mater.
2020;58(2):87-96. Published online 2020 Jan 8
DOI:
https://doi.org/10.3365/KJMM.2020.58.2.87
Abstract
The growth of the PEO coating with processing time on an AZ31B magnesium alloy in a dilute alkaline electrolyte containing silicate and the corrosion characteristics according to its thickness were investigated. The oxide film grew a porous outer layer mainly consisting of silicate with the spark discharge phenomenon from the.....
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Web of Science 2
Crossref 2
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3가 크롬 도금욕에서 펄스 도금의 전기화학적 변수 최적화를 통한 크롬 도금막의 내식성 향상 연구
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임채원, 임동욱, 구본일, 심상은, 백성현
Korean J. Met. Mater.
2019;57(10):641-647. Published online 2019 Sep 6
DOI:
https://doi.org/10.3365/KJMM.2019.57.10.641
Abstract
Electroplating chromium films in a trivalent chromium bath has been extensively investigated as a replacement for the conventional hexavalent chromium bath. However, commercialization of the trivalent chromium method has been hindered because the resulting chromium films exhibit inferior mechanical properties compared to hexavalent chromium coated film. In this study, we.....
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Web of Science 2
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용융아연 도금특성에 미치는 Mg 미량첨가 영향
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홍문희, 강덕구, 백두진, 황현석, 박성호
Korean J. Met. Mater.
2016;54(10):723-731. Published online 2016 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2016.54.10.723
Abstract
The effect of a small amount of added Mg on the microstructure, Fe-Al inhibition layer, corrosion resistance and welding properties of hot-dip galvanized and galvannealed steel sheets were investigated. Both the microstructure and distribution of Mg were measured by scanning electron microscopy, transmission electron microscopy, glow discharge spectrometer and electron.....
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Crossref 4
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