Formation of the structure and properties of β-type titanium alloy upon thermomechanical treatment

被引：0

作者：

O. P. Shaboldo

Ya. M. Vitorskii

V. V. Sagaradze

N. L. Pecherkina

M. A. Skotnikova

机构：

[1] Central Research Institute of Materials,Mikheev Institute of Metal Physics, Ural Branch

[2] Russian Academy of Sciences,undefined

[3] Peter the Great St. Petersburg Polytechnic University,undefined

来源：

Physics of Metals and Metallography | 2017年 / 118卷

关键词：

β-type titanium alloy; cold deformation; aging; α phase; electron microscopy; mechanical properties; strengthening;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The rapid quenching of β-type titanium alloy from 800°C and cold deformation by drawing (ε = 24%) leads to the formation of a cellular-banded structure with a cell size of 200 × 400 nm and high density of dislocations (~5 × 1014 m–2). During subsequent aging at 450°C, the decomposition of the β-phase occurs with a heterogeneous precipitation (at dislocations) of plates of the α phase with a thickness of 10–30 nm and length of 50–100 nm. The small size and high density of α crystals (5 × 1021 m–3) provide a substantial increase in the strength characteristics of the alloy.

引用

页码：75 / 80

页数：5

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