|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Fundamental Aspects and Modeling Powder Metal Synthesis and Processing
||A Study of the Brazing Filler Pastes by Gas Atomized Cu-Fe Powders for Cu/STS Joints
||Won-Jung Choi, Sang-Hun Choi, Jae-Jin Sim, Won Ju, Basit Ali, Tae-hyuk Lee, Kyung-Mook Lim, Bum-Sung Kim, Taek-Soo Kim, Kyoung-Tae Park
|On-Site Speaker (Planned)
There are many applications using the joints between Cu and Fe base alloy such as electrodes, cooling plate, cast mold, chock liner and etc. Commercially, silver contained alloys have been widely selected for brazing the Cu/Fe joints with the various shapes including foil, sheet, powder and paste. In this study, Rapid solidified Cu-Fe powder by gas atomization was applied as the raw materials of high viscosity brazing paste. Although Fe-Cu system is well known immiscible alloy, inside of each powder featured homogeneously microstructure by the gas atomization, that fine Fe grain is well distributed in Cu matrix. From this characteristics, we expected that powder is used as source for the diffusion into its own metal and finally to fabricated one body of dissimilar materials. After brazing using the paste included Fe-Cu powders, it is evaluated that microstructure, ultrasonic scanning and mechanical properties as well as anti-corrosion ability also tested.