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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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원전 내부구조물 오스테나이트 스테인리스강 용접부의 열시효 거동 및 열취화 활성화에너지 분석
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김유진, 김지수, 서주원, 김종민, 이수열, 홍석민
Korean J. Met. Mater.
2025;63(5):330-343. Published online 2025 May 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.5.330
Abstract
This study examines the thermal aging behavior and associated changes in mechanical properties of austenitic stainless steel welds (ASSW) used within reactor vessel internals (RVI). ASSW specimens were fabricated employing the Gas Tungsten Arc Welding (GTAW) technique, adhering to the welding procedure specifications for RVI, and were thermally aged at.....
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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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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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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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