Influence of strain amount on stabilization of ω-phase in pure Ti by severe plastic deformation under high-pressure torsion

被引：6

作者：

Todaka, Y. ^{[1
]}

Azuma, H. ^{[1
]}

Ohnishi, Y. ^{[1
]}

Suzuki, H. ^{[2
]}

Umemoto, M. ^{[1
]}

机构：

[1] Toyohashi Univ Technol, Dept Prod Syst Engn, Tempaku Ku, Hibarigaoka 1-1, Aichi 4418580, Japan

[2] Japan Atom Energy Agcy, Quantum Beam Sci Diretorate, Naka, Ibaraki 3191195, Japan

来源：

15TH INTERNATIONAL CONFERENCE ON THE STRENGTH OF MATERIALS (ICSMA-15) | 2010年 / 240卷

关键词：

TITANIUM;

D O I：

10.1088/1742-6596/240/1/012113

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In pure Ti, the influence of shear deformation on the alpha to omega transformation and the development of texture in the omega-phase under high-pressure torsion (HPT) straining were investigated by means of X-ray and neutron diffractions. The fraction of omega-phase increased with strain in the omega-phase state. Bulk submicrocrystalline omega-Ti was fabricated by HPT-straining under the compressive pressure P = 5 GPa with the equivalent strain. epsilon(eq) > 110 at the rotation speed of 3.3 x 10(-3) rev. per sec. (0.2 rev. per min.) at room temperature. The texture of omega-phase evolved by HPT-straining with the prismatic planes parallel to the shear direction of HPT-straining and the basal planes perpendicular to it.

引用

页数：4

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