K. Venkateswarlu et al., Effect of hot rolling and heat treatment of Al-STi-1B master alloy on the grain refining efficiency of aluminium, MAT SCI E A, 301(2), 2001, pp. 180-186
The influence of hot rolling and annealing of Al-5Ti-1B master alloy on its
grain refining efficiency has been studied in detail. Both hot rolling and
annealing improve the grain refining efficiency of the master alloy. Rolli
ng results in the fracture of TiAl3 particles. The amount of deformation re
quired for achieving good grain refinement decreases with increase in rolli
ng temperature. Grain refining efficiency of the master alloy also increase
s with increase in annealing temperature. The improved grain refining effic
iency of the master alloy on annealing is attributed to the increased fract
ion of TiAl3 and the possible formation of(Ti,Al)B-2. (C) 2001 Elsevier Sci
ence B.V. All rights reserved.