Abstract
Infrared brazing Inconel 601 and 422 stainless steel using the 70Au-22Ni-8Pd braze alloy is performed in the experiment. The brazed joint is primarily comprised of Au-rich and Ni-rich phases, and there is no interfacial intermetallic compound observed in the joint. The (Ni,Fe)-rich phase is observed at the interface between 422SS and the braze alloy, and the Ni-rich phase is found at the interface between the braze alloy and IN601. With increasing the brazing temperature and/or time, the microstructures of the brazed joint is coarsened. For the infrared brazed joint at 1050∘C for 180 s shows the highest average shear strength of 362 MPa. In contrast, the shear strength of the infrared brazed joint is higher than that of the furnace brazed specimen due to coarsening of the microstructure in the furnace brazed joint.
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Yu, Y.K., Liaw, D.W. & Shiue, R.K. Infrared brazing Inconel 601 and 422 stainless steel using the 70Au-22Ni-8Pd braze alloy. J Mater Sci 40, 3445–3452 (2005). https://doi.org/10.1007/s10853-005-0446-9
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DOI: https://doi.org/10.1007/s10853-005-0446-9