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Fractography as a tool to optimize joint design and the brazing process
|Jakob J. Kuebler , Vinzenz Bissig , Gurdial Blugan , Jolanta Janczak-Rusch|
Empa Materials Science and Technology (Empa), Überlandstrasse 129, Dübendorf 8600, Switzerland
A number of factors such as the brazing filler composition, brazing process parameters, gap thickness, properties of the joining partners, joint geometry, etc., can influence brazed joint performance. The complex relationships between these parameters make joint optimization a difficult task. The effects of some of these factors can be predicted, others have to be determined after processing and joint characterization. The fractographic analysis of joints provide important information on the failure origin and hence about the “weakest link” in the joint. The comparison of the crack path with the simulated stress distribution helps to distinguish between the processing oriented and design based failures.
Presentation: oral at E-MRS Fall Meeting 2005, Symposium H, by Jakob J. Kuebler
See On-line Journal of E-MRS Fall Meeting 2005
Submitted: 2005-05-31 11:22 Revised: 2009-06-07 00:44