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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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강도조합에 따른 TWB 핫스탬핑 부품의 미세구조 및 충돌성능 비교 분석
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이창욱, 황연정, 허욱, 유병길, 유지홍, 김태정, 윤광민
Korean J. Met. Mater.
2022;60(11):801-810. Published online 2022 Oct 31
DOI:
https://doi.org/10.3365/KJMM.2022.60.11.801
Abstract
Hot stamping technology has been steadily developed because it provides both excellent formability and high strength. With the development of TWB hot stamping technology, it is now possible to freely apply the required strength and thickness in the right place. In this study, the microstructure and collision performance of TWB.....
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Web of Science 1
Crossref 2
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Korean J. Met. Mater.
2021;59(1):61-66. Published online 2021 Jan 5
DOI:
https://doi.org/10.3365/KJMM.2021.59.1.61
Abstract
The Charpy impact test is used to identify the transition between ductility and brittleness. The percentages of ductile and brittle fractures in steel can be evaluated based on each fracture area, which is presently determined by an analyzer with the naked eye. This method may lead to subjective judgement, and.....
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Web of Science 3
Crossref 4
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소형펀치 파단에너지 천이곡선을 활용한 원자로용기강의 천이온도 평가
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이태경, 홍석민, 김종민, 김민철, 장재일
Korean J. Met. Mater.
2020;58(8):522-532. Published online 2020 Jul 27
DOI:
https://doi.org/10.3365/KJMM.2020.58.8.522
Abstract
The small punch (SP) test is one of the small specimen test techniques, and standardization of the SP test method for evaluating the mechanical properties of metallic materials is in progress. In this study, the impact transition temperature of reactor pressure vessel steels (RPV) in nuclear power plants was estimated.....
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항복강도 390 MPa급 가공열처리강 대입열용접 열영향부 충격인성 및 연화현상
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방국수, 안영호, 정홍철
Korean J. Met. Mater.
2018;56(11):796-804. Published online 2018 Nov 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.11.796
Abstract
The Charpy impact toughness of the heat affected zone (HAZ) of electro gas welded 390 MPa yield strength grade steel, manufactured by a thermo mechanically controlled process, was investigated. The effects of added Nb on the toughness of the steel and the factors influencing scatter in toughness are discussed in.....
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Crossref 1
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