D. Upadhyaya et al., INTERFACIAL REACTIONS IN TI-6AL-4V SIGMA(SM-1240) FIBER METAL-MATRIX COMPOSITE/, Materials science and technology, 11(11), 1995, pp. 1156-1159
The effect of thermal exposure on the stability and effectiveness of c
arbon and TiBx coatings on sigma(SM 1240) fibre in a Ti-6Al-4V metal m
atrix composite was studied. The results suggest that extensive loss o
f carbon coating starts only after consumption of the TiBx layer and t
hat the heat treatment atmosphere has little effect on the carbon coat
ing loss. The activation energies for the formation of TiC in specimen
s heat treated in air and in vacuum are 241 and 257 kJ mol(-1) respect
ively. (C) The Institute of Materials.