Features of Plastic Deformation and Fracture of a Dispersion-Strengthened V–4Ti–4Cr–(C, N, O) Alloy at Different Temperatures

被引：0

作者：

I. A. Ditenberg

K. V. Grinyaev

A. N. Tyumentsev

I. V. Smirnov

V. M. Chernov

M. M. Potapenko

机构：

[1] Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences,

[2] V. D. Kuznetsov Siberian Physical Technical Institute at Tomsk State University,undefined

[3] National Research Tomsk State University,undefined

[4] A. A. Bochvar High-Technology Scientific Research Institute for Inorganic Materials,undefined

来源：

Russian Physics Journal | 2015年 / 58卷

关键词：

vanadium alloys; plastic deformation; scanning and transmission electron microscopy; microstructure; dispersion strengthening; grain boundaries; deformation localization; fracture;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Using the methods of transmission and scanning electron microscopy, the defect substructure of a V–4Ti–4Cr–(C, N, O) alloy dispersion strengthened with nanosized oxicarbonitride particles and the features of its fracture after deformation via active tensile loading at the temperatures 20 and 800°C are investigated. It is shown that the most representative features of deformation at the elevated temperature is primarily activation of grain-boundary mechanisms of deformation and fracture and secondly strain localization accompanied by crystal-lattice re-orientation. The reasons for these phenomena are discussed.

引用

页码：205 / 211

页数：6