Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/1563

TitleThe Influence of the processing temperature on the microstructure of gamma-TiAl joints brazed with a Ti-15Cu-15Ni alloy
Author(s)Guedes, A.
Pinto, A. M. P.
Vieira, M. F.
Viana, Filomena
KeywordsTiAl
Joining
Diffusion Brazing
Interface
Issue date2003
PublisherTrans Tech Publications
JournalMaterials Science Forum
Citation"Materials science forums". ISSN 0255-5476. 426-432 (2003) 4159-4164.
Abstract(s)The joining of Ti-47Al-2Cr-2Nb (at.%) by diffusion brazing at 1000, 1050 and 1100ºC for 10 min, using a Ti-15Cu-15Ni (wt.%) braze alloy was investigated. The icrostructure and the chemical composition of the interfaces were studied by scanning electron microscopy (SEM) and by energy dispersive X-ray scans (EDS), respectively. The reaction between the gamma-TiAl alloy and the braze alloy led to the formation of layered interfaces, which should be essentially composed of alpha2-Ti3Al and of Ti-Ni-Cu-Al and Ti-Ni-Cu intermetallic compounds. Raising the brazing temperature increases the amount of Al rich intermetallic compounds (Ti-Ni-Cu-Al) and the extension of the interface. The increase of the thickness of the interface is primarily due to the growth of the reaction layer formed near the gamma-TiAl alloy.
TypeConference paper
URIhttp://hdl.handle.net/1822/1563
ISBN0878499199
DOI10.4028/www.scientific.net/MSF.426-432.4159
ISSN0255-5476
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CIICS - Artigos em revistas de circulação internacional com arbitragem científica
DEM - Artigos em revistas de circulação internacional com arbitragem científica

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