(TMS, 2000) Rae, C. M. F; Karunaratne, M. S. A; Small, C. J; Broomfield, R. W; Jones, C. N; Reed, R. C
The kinetics, morphology and composition of the formation of
TCP phases in an experimental alloy containing no tungsten is
studied. At high temperature P phase forms after 20 h, whereas
below 950°C the phases p and R occur. At lower temperatures a
polycrystalline form of cr phase is observed which is meta-stable
but acts as a nucleation site for the other phases. The phase
occurrence and compositions are compared with a thermodynamic
model using a rhenium-containing database, and reasonable
agreement is found for the P, R and cs phases. However the model
underestimates the stability of the p phase.
