Effect of Long-Term Operation on Structural-Phase State of Hypereutectoid Rail Steel

被引：0

作者：

Popova, N. A. ^{[1
]}

Gromov, V. E. ^{[2
]}

Ivanov, Yu. F. ^{[3
]}

Porfiryev, M. A. ^{[2
]}

Nikonenko, E. L. ^{[1
]}

Shlyarova, Yu. A. ^{[2
]}

机构：

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

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

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

来源：

INORGANIC MATERIALS-APPLIED RESEARCH | 2024年 / 15卷 / 04期

关键词：

rail steel; phase composition; dislocation substructure; dislocation density; internal stresses; curvature and torsion of the crystal lattice; PEARLITIC STEELS; MICROSTRUCTURE; SURFACE; DAMAGE; LAYER;

D O I：

10.1134/S2075113324700473

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For rails of increased wear resistance and contact endurance of the DH400RK category made of E-0.9C-Cr-V-Fe hypereutectoid steel, after a tonnage of 187 million tons, the fine structure in the railhead along the central axis at distances of 0, 2, and 10 mm was analyzed using transmission electron microscopy for the four morphological components of pearlite from the rolling surface. The nonmonotonic change in scalar and excess dislocation density, fragment size, cementite particles, and internal long-range stress fields in the railhead section was analyzed.

引用

页码：968 / 977

页数：10

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