Abstract
The erosion of Ni baaed alloy substrate to the convection of the molten 54mas8%Ag-21ma88%Cu-25masB%Pd (BPd-6) brazing filler metal is numerically analyzed. During the brazing process using BPd-6 with organic binder, the binder is heated by radiation to form the slag floating on the molten brazing filler metal surface. The slag becomes the heat spot which might induce the Marangoni convection of the molten brazing filler metal. The numerical analysis of flow and temperature fields of the molten brazing filler metal reveals that the Marangoni convection occur on the case of the slag temperature of 1,050℃ and 1,010℃ on the 1,000℃ molten BPd-6. The flow is the well-up type around the slag. The substrate is considered to be eroded by the combination of the metallurgical dissolution and the Marangoni convection. The eroded pif s depth is quantitatively estimated from the total flux of the molten BPd-6 flown over the substrate surface is quantitatively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The Proceedings of the Materials and processing conference
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
