Structural-phase transformations and crystallographic texture in commercial Ti–6Al–4V alloy with globular morphology of α-phase grains: the rolling plane

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The commercial Ti–6Al–4V alloy was obtained in an almost single-phase state, formed by finely dispersed globular α-grains with an average size of 12 μm, using thermomechanical processing, including hot rolling. The microtexture and structure of the alloy were studied using X-ray diffractometry and transmission and scanning electron microscopy, including orientation microscopy. It is found that for α-grains the Burgers orientation relationships are satisfied, and twin orientations are ensured in the rolling plane. A significant scattering of the crystallographic orientations of α-grains relative to each other (up to 10°–15°) is established for each group of close Burgers orientations as a result of plastic deformation by rolling at high temperatures. Clusters of microtexture regions in the layered microstructure of grains and the formation mechanisms and mutual crystallographic misorientations of microtexture regions and grains in the alloy have been identified.

作者简介

V. Pushin

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Institute of Continuous Media Mechanics, Ural Branch, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: pushin@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108; Perm’, 614013

D. Rasposienko

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Email: pushin@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108

Yu. Gornostyrev

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Institute of Continuous Media Mechanics, Ural Branch, Russian Academy of Sciences

Email: pushin@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108; Perm’, 614013

N. Kuranova

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Email: pushin@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108

V. Makarov

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Email: pushin@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108

E. Marchenkova

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Email: pushin@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108

A. Svirid

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Email: pushin@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108

O. Naimark

Institute of Continuous Media Mechanics, Ural Branch, Russian Academy of Sciences

Email: pushin@imp.uran.ru
俄罗斯联邦, Perm’, 614013

A. Balakhnin

Institute of Continuous Media Mechanics, Ural Branch, Russian Academy of Sciences

Email: pushin@imp.uran.ru
俄罗斯联邦, Perm’, 614013

V. Oborin

Institute of Continuous Media Mechanics, Ural Branch, Russian Academy of Sciences

Email: pushin@imp.uran.ru
俄罗斯联邦, Perm’, 614013

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