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.
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页码：205 / 211
页数：6
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