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Vol.48, No.4, 289 ~ 297, 2010
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| Title |
| Effect of the Heat Input on the Tensile Properties in Arc Brazing of Ferritic Stainless Steel using Cu-Si Insert Alloy |
| 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 |
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| Abstract |
| 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. |
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| Key Words |
| ferritic stainless steel, brazing, mechanical property, tensile test |
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