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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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GTAW로 용접한 초내식성 오스테나이트계 스테인리스강 (UNS S31254) 열영향부의 내식성에 미치는 Ni계 용가재의 영향
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박진성, 조동민, 홍승갑, 윤태호, 김성진
Korean J. Met. Mater.
2023;61(6):404-413. Published online 2023 May 18
DOI:
https://doi.org/10.3365/KJMM.2023.61.6.404
Abstract
The effect of Ni-based fillers on corrosion resistance of welded super austenitic stainless steel (SASS) was examined. The use of Ni-based fillers for gas tungsten arc welded SASS leads to the formation of fine Cr-Mo enriched phase in its weld unmixed zone, which makes it more susceptible to the localized.....
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집속이온빔 가공 처리된 오스테나이트 스테인리스강의 표면 손상층 제어 방법
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진형하, 류이슬
Korean J. Met. Mater.
2023;61(2):137-143. Published online 2023 Jan 27
DOI:
https://doi.org/10.3365/KJMM.2023.61.2.137
Abstract
There is substantial concern about the phase change to artificial ferrite or martensite in commercial austenitic stainless steels during intense focused-ion-beam milling. In this work, severe Ga ion milling to prepare microscale samples was found to produce thin transformed layers on the surface of austenitic stainless steel. The surface BCC.....
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슈퍼 오스테나이트계 스테인리스강 (UNS S31254)의 용접 및 용접 후 열처리 상태에서의 부식거동
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조동민, 박진성, 정원기, 홍승갑, 김성진
Korean J. Met. Mater.
2021;59(6):374-383. Published online 2021 May 26
DOI:
https://doi.org/10.3365/KJMM.2021.59.6.374
Abstract
The corrosion behaviors of a combined weld (plasma, gas tungsten arc) joint in a super austenitic stainless steel pipe were investigated using a range of experimental and analytical methods. To ensure superior corrosion resistance, a Ni-based super alloy (Inconel 625) was employed as the welding material only in the gas.....
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Web of Science 3
Crossref 2
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오스테나이트 스테인리스강 튜브의 응력부식균열 민감도에 영향을 미치는 미세조직 및 잔류응력 비교
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이호중, 오승진, 김홍덕
Korean J. Met. Mater.
2019;57(1):51-59. Published online 2018 Dec 14
DOI:
https://doi.org/10.3365/KJMM.2019.57.1.51
Abstract
Three 304L austenitic stainless steel feedwater heater (FWH) tubes used in pressurized water reactors (PWRs) were investigated in this study. By comparing metallurgical differences, such as microstructural features, micro-hardness, and circumferential residual stress of the failed and non-failed FWH tubes by stress corrosion cracking (SCC), factors which could affect SCC.....
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Web of Science 5
Crossref 5
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냉간압연 된 304 오스테나이트 스테인리스강의 열처리에 의한 기계적 특성 평가
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박민하, 김광윤, 장재호, 김형찬, 문형석, 전종배, 남대근, 손근용, 김병준
Korean J. Met. Mater.
2018;56(7):490-498. Published online 2018 Jul 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.7.490
Abstract
Austenitic stainless steels are widely used in a variety of industries, such as power plants, aerospace, automotive, construction and electronics, due to their excellent mechanical properties including ductility, toughness and corrosion resistance. For application in various industries, many parts and products require plastic processes such as cold rolling, cold forging.....
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Crossref 4
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오스테나이트계 스테인리스강 용접부 델타-페라이트의 열화에 따른 미세조직 변화가 기계적 물성 및 부식 특성에 미치는 영향
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박상규, 이호중, 이종현
Korean J. Met. Mater.
2018;56(4):296-303. Published online 2018 Apr 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.4.296
Abstract
347 austenitic stainless steel weld (ASSW) was thermally aged at 343, 400 and 450 °C up to 20,000 h in this study. Effects of thermal aging induced microstructure evolution on the mechanical properties and corrosion resistance of delta-ferrite in the 347 ASSW were qualitatively and quantitatively assessed by high resolution.....
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쾌삭 303계 스테인레스강의 열간성형성에 미치는 균질화처리, Mn/S 비 및 델타-페라이트의 영향
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정재영
Korean J. Met. Mater.
2017;55(12):880-887. Published online 2017 Dec 4
DOI:
https://doi.org/10.3365/KJMM.2017.55.12.880
Abstract
To improve the hot-workability of free-machining austenitic stainless steel, we studied the effects of homogenization treatment, Mn/S ratio and the retained δ-ferrite on the hot-workability of 303 austenitic stainless steels. The reduction of area was measured as a function of homogenization temperature in the range of 1160-1250 ℃ and 1-50.....
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Crossref 1
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STS304의 후열처리에 따른 용접부 미세조직과 기계적 특성 평가
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장대한, 김광윤, 김형찬, 전종배, 남대근, 손근용, 김병준
Korean J. Met. Mater.
2017;55(9):664-670. Published online 2017 Aug 30
DOI:
https://doi.org/10.3365/KJMM.2017.55.9.664
Abstract
Austenitic stainless steels have excellent mechanical property and corrosion resistance, and are for these reasons used in demanding applications such as power plant, nuclear reactor and off-shore plant. Especially, austenitic stainless steel 304 (STS304) is mainly used as a pipe material in nuclear power plants. Submerged arc welding (SAW) is.....
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Crossref 7
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