Microstructural Evolution and Ultrasonic Nondestructive Evaluation During Creep-Fatigue of 9Cr Ferritic Heat-Resisting Steel (페라이트기 9Cr 내열강의 크리프-피로손상에 따른 미세조직 및 초음파 비파괴평가)
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- Korean Journal of Materials Research
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- v.17 no.8
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- pp.425-432
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- 2007