Coarse-grained and ultrafine-grained titanium high-temperature creep

Abstract

The publication describes the study of durability in tensile creep of VT1-0 commercial titanium in its two states - coarse-grained and ultrafine-grained. It is shown that the best temperature for log-term testing is 350°С. At this temperature, the ultrafine-grained titanium structure remains stable both during free annealing and durability testing. The obtained data enable retrieving the difference in fracture initiation energies for titanium in its coarse-grained and ultrafine-grained states