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Improving the Corrosion Resistance of AISI 316L Steel for Semiconductor Piping by Controlled Delta-Ferrite Content
Young Woo Seo, Chan Yang Kim, Bo Kyung Seo, Won Sub Chung
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..... More

                        
Effects of Si and Sn Contents and Heat-Treatment Temperature on the Corrosion Behavior of AISI 439 Ferrite Stainless Steel
Chan Yang Kim, Do hyung Kim, Won sub Chung
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..... More

                        
Electrochemical Corrosion Resistance and Electrical Conductivity of Three-Dimensionally Interconnected Graphene-Reinforced Cu Composites
Xue Li, Ateeq Ahmed, Byung-Sang Choi
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..... More

                           Cited By 1
Study on a Superhydrophobic Stainless Steel (SUS 304) Surface to Enhance Corrosion Resistance
내식성 향상을 위한 기능성 초발수 스테인리스 스틸 (SUS 304) 표면 연구
Youngju Park, Chanyoung Jeong
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..... More

                           Cited By 2
Corrosion Characteristics of Plasma Electrolytic Oxidation Treated AZ31 Magnesium Alloy with an Increase of the Coating Thickness
AZ31 마그네슘 합금의 플라즈마전해 산화막 두께 성장에 따른 내식특성
Boeun Choi, Wonsub Chung, Yonghwan Kim
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..... More

                           Cited By 1
Optimization of Electrochemical Variables of Pulse-Reverse Electroplating in Trivalent Chromium Bath to Enhance the Corrosion Resistance of Chromium Film
3가 크롬 도금욕에서 펄스 도금의 전기화학적 변수 최적화를 통한 크롬 도금막의 내식성 향상 연구
Chaewon Lim, Dongwook Lim, Bonil Ku, Sang Eun Shim, Sung-Hyeon Baeck
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..... More

                        
Effect of Added Magneisum on the Coating Properties of Galvanized Steel Sheets
용융아연 도금특성에 미치는 Mg 미량첨가 영향
Moon-Hi Hong, Deok-Gu Kang, Doo-Jin Paik, Hyeon-Seok Hwang, Sung-ho Park
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..... More

         Cited By 4
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