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Trans Tech Publications, Materials Science Forum, (455-456), p. 880-884, 2004

DOI: 10.4028/www.scientific.net/msf.455-456.880

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Joining Ti-47Al-2Cr-2Nb with a Ti-Ni braze alloy

Journal article published in 2004 by Anibal Guedes, Ana Maria Pires Pinto, Manuel F. Vieira ORCID, Filomena Viana
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Ti-47Al-2Cr-2Nb was joined by diffusion brazing using a Ti-Ni clad-laminated filler alloy. Brazing was performed in the temperature range of 1000 to 1200ºC for 10 min. The microstructure and the chemical composition of the interfaces were studied by scanning electron microscopy (SEM) and by energy dispersive X-ray spectroscopy (EDS), respectively. The reaction between the γ-TiAl alloy and the liquid produced interfaces essentially composed of α2-Ti 3Al and TiNiAl intermetallics. When joints are brazed at 1150 and 1200ºC, the γ-TiAl phase is also detected at the interface.