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Joining alumina to inconel 600 and UMCo-50 superalloys using an Sn10Ag4Ti active filler metal

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Abstract

Alumina ceramics were brazed to Inconel 600 and UMCo-50 superalloys at 900 °C for 10 min using an Sn10Ag4Ti active filler metal. The brazing filler showed good wettability on alumina and superalloys. The flexural strengths were 69 and 57 MPa for alumina/Inconel 600 and alumina/UMCo-50 joints, respectively. In both cases, the brazed specimens fractured along the Sn10Ag4Ti/superalloy interfaces after four-point bending tests. Electron probe microanalysis (EPMA) elemental mapping revealed that the Ni of Inconel 600 and the Co of UMCo-50 dissolved into Sn10Ag4Ti filler metal, which serves to reinforce the weak Sn10Ag4Ti matrix.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan

    S. Y. Chang, Y. T. Hung & T. H. Chuang

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  1. S. Y. Chang
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  2. Y. T. Hung
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  3. T. H. Chuang
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Chang, S.Y., Hung, Y.T. & Chuang, T.H. Joining alumina to inconel 600 and UMCo-50 superalloys using an Sn10Ag4Ti active filler metal. J. of Materi Eng and Perform 12, 123–127 (2003). https://doi.org/10.1361/105994903770343240

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  • DOI: https://doi.org/10.1361/105994903770343240

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