Inhomogeneous Precipitation of the α-Phase in Ti15Mo Alloy Deformed by ECAP

被引：2

作者：

Bartha, Kristina ^{[1
]}

Terynkova, Anna ^{[1
]}

Strasky, Josef ^{[1
]}

Minarik, Peter ^{[1
]}

Vesely, Jozef ^{[1
]}

Polyakova, Veronika ^{[2
]}

Semenova, Irina ^{[2
]}

Janecek, Milos ^{[1
]}

机构：

[1] Charles Univ Prague, Dept Phys Mat, Ke Karlovu 5, Prague 12116, Czech Republic

[2] UFA State Aviat Tech Univ, Inst Phys Adv Mat, K Marx St 12, Ufa 450000, Russia

来源：

THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS | 2018年 / 941卷

关键词：

metastable beta titanium alloy; severe plastic deformation; alpha-phase precipitation; phase transformations; TITANIUM;

D O I：

10.4028/www.scientific.net/MSF.941.1183

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A metastable beta-titanium alloy, Ti15Mo was subjected to equal channel angular pressing (ECAP). The resulting microstructure of the material is inhomogeneous consisting of micrometer size beta-grains with deformed bands containing ultra-fine beta-grains. The ECAP-deformed sample was subjected to thermal treatment in order to elucidate the difference in morphology of the alpha-phase precipitation in deformed and non-deformed materials. The alpha-phase formation is accelerated in areas with higher concentration of lattice defects. The detail investigation by transmission electron microscopy revealed equixed alpha-phase formation in deformed bands. In the transition area between deformed band and beta-matrix grain boundary alpha-phase forms while in the interior of the beta-grains the alpha-phase precipitation is suppressed.

引用

页码：1183 / 1188

页数：6

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