Evolution of the defective structure during long-term loading of ultrafine-grained titanium VT1-0 obtained by intensive plastic deformation

For high-strength titanium VT1-0, the ultrafine-grained structure of which was obtained by mechanical-thermal treatment using methods helical and longitudinal rolling followed annealing to relieve stress first kind. The effect long-term loading in creep mode at elevated temperature on size shape grains has been studied. A similar study previously carried out for recrystallized coarse-grained transferred from state isothermal annealing. Based data work previous results authors, factors affecting mechanical stability (durability) metals under severe plastic deformation were analyzed. Keywords: creep, durability, nanopores, metals, titanium, recrystallization.