High-strength state of ultrafine-grained martensitic steel produced by high pressure torsion

被引：4
|
作者：
Karavaeva, M. V. [1 ]
Nikitina, M. A. [1 ]
Ganeev, A. V. [1 ]
Islamgaliev, R. K. [1 ]
机构：
[1] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, 12 K Marx Str, Ufa 450008, Russia
来源：
4TH INTERNATIONAL CONFERENCE RECENT TRENDS IN STRUCTURAL MATERIALS | 2017年 / 179卷
基金：
俄罗斯科学基金会;
关键词：
MECHANICAL-PROPERTIES; CARBON-STEEL; MICROSTRUCTURE;
D O I：
10.1088/1757-899X/179/1/012037
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper presents the study results on the effect of severe plastic deformation (SPD) via high pressure torsion (HPT) on the structure and properties of martensitic steel. The contribution of different strengthening mechanisms in the strength of steel has been analyzed. It is shown that independently of the deformation temperature the main contribution in hardening belongs to grain boundaries (about 50 %), whereas the dislocation and solid solution components achieve 15 and 25 %, respectively.
引用
收藏
页数：9
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