Korean Journal of Metals and Materials

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Influence of Boron and Manganese on Hot Crack Resistance and Low Temperature Toughness of Flux Cored Arc Weld Metal for High Strength Carbon Steels
고강도 탄소강 FCA 용착금속의 고온균열 저항성과 저온 충격인성에 미치는 보론과 망간의 영향

Su-Kil Park, Young-Ho Cho, Chun-Ho Jee, Junghoon Lee, Seong-Moon Seo, Namhyun Kang
박수길, 조영호, 지춘호, 이정훈, 서성문, 강남현

Korean J. Met. Mater. 2019;57(1):28-37. Published online 2018 Dec 14
DOI: https://doi.org/10.3365/KJMM.2019.57.1.28

Abstract
The hot crack resistance and mechanical properties of flux cored arc (FCA) welds were investigated with three kinds of welding consumables having different boron (B) and manganese (Mn) contents for high strength carbon steel. The hot crack resistance, measured from self-restraint testing, strongly depended on the amount of B in..... More

Casting/Solidification/Heat Treatment

Solidification Segregation and Homogenization Behavior of 1Cr-1.25Mo-0.25V Steel Ingot
1Cr-1.25Mo-0.25V 강 잉곳의 응고편석 및 균질화 거동

Dong-Bae Kim, Young-Sang Na, Seong-Moon Seo, Je-Hyun Lee
김동배, 나영상, 서성문, 이재현

Korean J. Met. Mater. 2016;54(9):659-671. Published online 2016 Sep 5
DOI: https://doi.org/10.3365/KJMM.2016.54.9.659

Abstract
As a first step to optimizing the homogenization heat treatment following high temperature upset forging, the solidification segregation and the homogenization behaviors of solute elements were quantitatively analyzed for 1Cr-1.25Mo-0.25V steel ingot by electron probe micro-analysis (EPMA). The random sampling approach, which was designed to generate continuous compositional profiles of..... More

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