Titanium fire found in advanced aircraft engines has aroused a aide interes
t in the world. Influences of the interface on the burning behavior of tita
nium are important. The results reveal that the bunting product surface has
cracks and is porous, which cannot retard oxygen diffusion into the matrix
. The interface between the burning products and the matrices of C.P.Ti and
Ti-6-4 also has cracks and is porous. However, the interface between the b
urning products and the matrix of the Ti40 alloy is tenacious, which is in
the form of Cr2O3. This product can retard oxygen diffusion into the matrix
and reduces the burning velocity. Thereby the burn resistant mechanism of
suspending oxygen diffusion is proposed. (C) 1999 Elsevier Science S.A. All
rights reserved.