학술논문
Simultaneous increase in the strength, plasticity, and corrosion resistance of an ultrafine-grained Ti–4Al–2V pseudo-alpha-titanium alloy
Document Type
Original Paper
Author
Source
Technical Physics Letters. May 2017 43(5):466-469
Subject
Language
English
ISSN
1063-7850
1090-6533
1090-6533
Abstract
The influence of severe plastic deformation on the structural-phase state of grain boundaries in a Ti–4Al–2V (commercial PT3V grade) pseudo-alpha-titanium alloy has been studied. It is established that increase in the strength, plasticity, and corrosion resistance of this alloy is related to the formation of an ultrafine- grained structure. In particular, it is shown that an increase in the resistance to hot-salt intergranular corrosion is due to diffusion-controlled redistribution of aluminum and vanadium atoms at the grain boundaries of titanium formed during thermal severe plastic deformation.