Alloying elements strongly segregate at ledges in the crept microstructure
of Ti48.55Al47Cr2Nb1Ta0.8-W0.2B0.15Si0.3 alloy. The amount of segregation i
s related to the stress concentration and distorted lattice caused by the a
pplied stress. The segregation can stabilize alpha (2) phase and improve cr
eep resistance. (C) 2001 Acta Materialia Inc. Elsevier Science Ltd. All rig
hts reserved.