Rev.Adv.Mater.Sci. (RAMS)
No 1/2, Vol. 43, 2015, pages 61-66

MICROSTRUCTURE AND TEXTURE HOMOGENEITY OF ECAP TITANIUM

Alexander Zhilyaev, Nikolay Parkhimovich, Georgy Raab, Vladimir Popov
and Valery Danilenko

Abstract

Microstructure and texture of commercially pure titanium subjected to eight passes by equal channel angular pressing via route Bc at temperature 450 °C have been thoroughly analyzed by transmission electron microscopy (TEM), X-ray diffraction and microhardness mapping in flow and top planes and cross section of the billet. Unlike previously published reports some inhomogeneity (i.e. non-equaxiality of grains) of fine structure has been detected by careful TEM inspection. Texture results have supported that during ECAP pressing at elevated temperature mostly pyramidal slip systems were active.

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