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Cu-Si계삽입금속을사용한페라이트계스테인리스강의아크브레이징에서인장성질에미치는입열량의영향
김명복 ( Myung Bok Kim ),김상주 ( Sang Ju Kim ),이봉근 ( Bong Keun Lee ),원신건 ( Xin Jian Yuan ),윤병현 ( Byoung Hyun Yoon ),우인수 ( In Su Woo ),강정윤 ( Chung Yun Kang ) 대한금속재료학회 ( 구 대한금속학회 ) 2010 대한금속·재료학회지 Vol.48 No.4
The effects of heat input and different microstructureswere investigated on the tensile-shear properties of an arc-brazed joint of theferritic stainless steel 429EM using a Cu-Si insert alloy. The brazing speed was fixed at 800 mm/min whilethe brazing current varied from 80 to l20A. For abrazing current lower than l00A, fracturing occurred at the joint root in the direction perpendicular to the tensile load. As the brazing current increased to l20A, fracturing occurred at the base metal or the joint root. The joint and the base metal had very similaryield and tensile load values. However, the amount of elongation was decreased considerably compared towhen the base metal was used. The fracturingbegan at the triple point of the root part and was classified into three types. The difference in the tensile-shear properties was closely related tothe three fracturetypes.