Paper Title:
Synthesis of Silver Free Eutectic Alloys for Be and Cu99.32Cr0.6Zr0.08 Brazing
  Abstract

Silver free Ti-43at.%Cu (Ti-Cu) eutectic alloy have been developed for the brazing of Be and Cu99.32Cr0.6Zr0.08 (CuCrZr). The structural and microstructural properties of the as obtained alloys were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDXS). The analysis have revealed that the Cu-Ti eutectic alloy have a fine and homogeneous eutectic structure with the phase composition corresponding to the Ti-Cu phase diagram. These observations are consistent with the thermal properties of the alloys determined by DTA-TG analysis. The role of Mn on the eutectic structure, as well on the wetability properties was also studied. The effect of Mn is to produce a less coarse eutectic structure and to decrease the wetability angle. The mechanical testing of CuCrZr/Ti-Cu/CuCrZr junctions have demonstrated that these alloys are suitable for the brazing of Be and CuCrZr. The shear strength of the CuCrZr/TiCuMn/ CuCrZr increases with Mn concentration reaching the value of about 280 MPa for 2at% Mn.

  Info
Periodical
Edited by
Ionel Chicinaş and Traian Canta
Pages
311-314
DOI
10.4028/www.scientific.net/AMR.23.311
Citation
T. Petrişor, B. V. Neamţu, A. Rufoloni, M. C. Rauca, L. Brânduşan, "Synthesis of Silver Free Eutectic Alloys for Be and Cu99.32Cr0.6Zr0.08 Brazing", Advanced Materials Research, Vol. 23, pp. 311-314, 2007
Online since
October 2007
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