J. Mater. Sci. Technol. ›› 2013, Vol. 29 ›› Issue (3): 283-286.DOI: 10.1016/j.jmst.2013.01.010

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Infrared Brazing Zirconium using Two Silver Based Foils

Cheng-Han Lee, Ren-Kae Shiue   

  1. Department of Materials Science and Engineering, National Taiwan University, Taipei 106, China
  • Received:2011-11-26 Revised:2012-01-11 Online:2013-03-30 Published:2013-03-19
  • Contact: Ren-Kae Shiue

Abstract:

Ag-based brazing foils, BAg-8 (72Age28Cu in wt%) and Ticusil® (68.8Age26.7Cue4.5Ti in wt%) were selected to braze Zr. Interfacial AgCu4Zr, CuZr2 reaction layers and Ag-rich matrix dominate BAg-8 brazed joint, and fractograph after shear test shows ductile dimple fracture with plastic sliding marks. Ticusil® joint brazed at 910 oC for 300 s is comprised of Cu9Zr11 and AgZr intermetallics, and fractograph after shear test displays brittle cleavage fracture.

Key words: Brazing, Zirconium, Microstructural evolution