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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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CM247LC 초내열합금 터빈 블레이드 용접 열영향부의 액화균열 발생 거동 및 민감도 평가
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정예선, 김경민, 이의종, 이형수, 서성문, 천은준
Korean J. Met. Mater.
2020;58(12):875-886. Published online 2020 Dec 4
DOI:
https://doi.org/10.3365/KJMM.2020.58.12.875
Abstract
In this study, the weldability of the as-cast CM247LC superalloy for turbine blade applications was metallurgically evaluated in terms of its hot cracking behavior and susceptibility. For this purpose, a real blade was manufactured using a directional solidification casting process, and gas tungsten arc welding was performed at the tip.....
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열처리 및 HIP 공정을 이용한 가스터빈 고온부품 재생시 미세조직 및 기계적 특성 변화
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장성용, 오기용
Korean J. Met. Mater.
2019;57(7):468-474. Published online 2019 Jun 5
DOI:
https://doi.org/10.3365/KJMM.2019.57.7.468
Abstract
The evolution of microstructure and mechanical characteristics during the rejuvenation of a hot gas pass component of a gas turbine was investigated with an actual service-exposed bucket in a power plant. Heat treatment and hot isostatic pressing processes were conducted to rejuvenate a hot gas pass component of a F.....
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