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Title: The influence of silver on the structure and mechanical properties of (TiAl)-based intermetallics
Authors: Vieira, M. T. 
Trindade, B. 
Ramos, A. S. 
Fernandes, J. V. 
Vieira, M. F. 
Keywords: Sputtering; Titanium aluminides; Phase transitions; Mechanical properties
Issue Date: 1999
Citation: Thin Solid Films. 343-344:(1999) 43-46
Abstract: The influence of silver on the structure and mechanical properties of sputter-deposited Ti-Al-Ag films with an aluminium content close to 48 at.% and 0 < at.% Ag < 3 was investigated. A new tensile test procedure has been developed to evaluate the ductility of the films. The results show that the as-deposited films are metastable formed, essentially, by an extended [alpha]-Ti solid solution. Annealing at 600°PC gives rise to the formation of [gamma]-TiAl intermetallic compound. Silver does not lead to structural modifications of the TiAl system nor influences significantly its ductility. However, a hardness increase of the as-deposited films with silver contents up to 1.6 at.% is observed.
DOI: 10.1016/S0040-6090(99)00042-5
Rights: openAccess
Appears in Collections:FCTUC Eng.Mecânica - Artigos em Revistas Internacionais

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