Посилання:Superplastic behavior of ultrafine-grained Ti−6Al−4V ELI alloy produced by severe plastic deformation / I.P. Semenova, L.R. Saitova, G.I. Raab, R.Z. Valiev // Физика и техника высоких давлений. — 2006. — Т. 16, № 4. — С. 84-89. — Бібліогр.: 13 назв. — англ.
Підтримка:This work was supported by the Ministry of Education in the framework of contract № 02.445.11.7326 and the International Science and Technology Centre (Moscow) under project 3208р.
This paper reports the results of investigation of mechanical behavior of the ultrafinegrained (UFG) Ti-6Al-4V alloy processed by equal-channel angular pressing (ECAP) and extrusion at temperatures in a range of 500−800°C. The UFG alloy reveals superplastic behavior at relatively low temperatures down to 600°C (elongation 240%). The features of microstructure change of the UFG alloy under superplastic straining conditions that contribute to additional strengthening of the alloy are shown.