Chromium carbide modified C/C and Ti6Al4V were successfully joined using a TiCuZrNi brazing alloy in powder form. The braze/composite interface and the mechanical strength of C/C-Ti6Al4V joints were evaluated. The apparent shear strength of chromium carbide modified C/C joined to Ti6Al4V, measured by single lap test in compression, was 52 ± 6 MPa, which was highest among that without chromium carbide modification (15 ± 2 MPa) and the intrinsic C/C shear strength. The fractography of joints without chromium carbide modification indicated that failure mainly occurred at the TiC layer formed at the composite/ braze interface while the joints with chromium carbide modification failed within the C/C.

In-situ TiC particle reinforced TiCuZrNi brazing alloy for joining C/C composites to Ti6Al4V / Song, Xinrui; Li, Hejun; Casalegno, Valentina; Salvo, Milena; Ferraris, Monica; Zeng, Xierong. - In: INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY. - ISSN 1546-542X. - 15:(2018), pp. 611-618. [10.1111/ijac.12863]

In-situ TiC particle reinforced TiCuZrNi brazing alloy for joining C/C composites to Ti6Al4V

Casalegno, Valentina;Salvo, Milena;Ferraris, Monica;
2018

Abstract

Chromium carbide modified C/C and Ti6Al4V were successfully joined using a TiCuZrNi brazing alloy in powder form. The braze/composite interface and the mechanical strength of C/C-Ti6Al4V joints were evaluated. The apparent shear strength of chromium carbide modified C/C joined to Ti6Al4V, measured by single lap test in compression, was 52 ± 6 MPa, which was highest among that without chromium carbide modification (15 ± 2 MPa) and the intrinsic C/C shear strength. The fractography of joints without chromium carbide modification indicated that failure mainly occurred at the TiC layer formed at the composite/ braze interface while the joints with chromium carbide modification failed within the C/C.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2697368
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