Strain Hardening of Rail Steel

被引：2

作者：

Porfir'ev, M. A. ^{[1
]}

Ivanov, Yu. F. ^{[2
]}

Popova, N. A. ^{[3
]}

Gromov, V. E. ^{[1
]}

Shlyarova, Yu. A. ^{[1
]}

机构：

[1] Siberian State Ind Univ, Novokuznetsk 654007, Russia

[2] Russian Acad Sci, Siberian Branch, Inst High Current Elect, Tomsk 634055, Russia

[3] Tomsk State Univ Architecture & Bldg, Tomsk 634003, Russia

来源：

RUSSIAN METALLURGY | 2023年 / 2023卷 / 04期

关键词：

strain curve; rail steel; structure; dislocation substructure; strengthening mechanisms; additive yield strength; electron microscopy; STRENGTHENING MECHANISMS; PEARLITIC STEEL; DEFORMATION;

D O I：

10.1134/S0036029523040195

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A quantitative analysis of the hardening mechanisms of rail steel under compressive conditions has been performed using the results of studying the evolution of structural-phase states and dislocation substructure in rail steel during uniaxial compression to a strain of 50%. The contributions to hardening caused by matrix lattice friction, a dislocation substructure, the presence of carbide particles, internal stress fields, and solid-solution and substructural hardening of the pearlite component are quantitatively estimated. The strength of rail steel is determined at various stages of compressive plastic deformation taking into account these estimates in accordance with the additivity principle. A comparative analysis of the experimental and theoretical strain curves sigma(epsilon) demonstrates their good agreement.

引用

页码：485 / 491

页数：7

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