The Aging Response of a Metastable β Ti Alloy, BTi-6554
In this study the effects of different aging heat treatments on the properties and microstructure of a high strength, high toughness metastable β Ti, BTi-6554 (Ti-6Cr-5Mo-5V-4Al), have been compared. An initial β phase solution treatment was followed by aging at moderate temperatures in the α/β dual phase zone by either step aging directly from the solution treatment temperature or by quenching to room temperature prior to the aging heat treatment. The differing heat treatment methods have significant effects on the microstructure and mechanical properties.
Hajo Dieringa, Norbert Hort and Karl Ulrich Kainer
Y. Q. Wang et al., "The Aging Response of a Metastable β Ti Alloy, BTi-6554", Materials Science Forum, Vol. 690, pp. 29-32, 2011