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Alloy617과 12Cr강의 이종 용접과 기계적 특성 평가
윤재웅(Jaewoong Yoon),황정호(Jungho Hwang),이주화(Juhwa Lee),김태민(Taemin Kim),배동호(Dongho Bae) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
Currently, dependence on thermal power generation is quite high in the world wide. Accordingly, it caused the problem such as carbon dioxide and greenhouse gas emission. In order to reduce the problems, various studies have been conducted and increasing the efficiency of thermal power generation is one of them. It must be raised to main steam temperature to increase the power generation efficiency. In developed countries, it have studied the A-USC thermal power plant using the main steam temperature above 700℃. It is necessary to develop materials that satisfy the durability and reliability in extreme environments. Prior to application to the actual power plant system, fundamental research is needed such as welding procedure, mechanical properties. In this paper, dissimilar welding using major materials candidate, Alloy617 and 12Cr steel were performed, and weld metal was metallurgically analyzed and mechanically assessed.