Formation Structural Phase Gradients in Rail Steel During Long-Term Operation

2nd International Symposium on Fundamental Aspects of Rare-earth Elements Mining and Separation and Modern Materials Engineering

材料科学;物理学

Ivanov, Yu F.^1,2,3 ; Morozov, K.V.^4 ; Peregudov, O.^4 ; Gromov, V.E.^4 ; Popova, N.A.^5,6 ; Nikonenko, E.N.^2,5

High Current Electronics Institute SB RAS, 2/3 Academicheskii Ave., Tomsk

654052, Russia^1

National Research Tomsk Polytechnic University, Lenin Ave. 30, Tomsk

634050, Russia^2

National Research Tomsk University, Lenin Ave. 36, Tomsk

634050, Russia^3

Siberian State Industrial University, Kirov Str. 42, Novokuznetsk

654007, Russia^4

Tomsk State University of Architecture and Building, Solyanaya Sq. 2, Tomsk

634003, Russia^5

Institute of Strength Physics and Materials Science SB RAS, 8/2 Akademicheskii Ave., Tomsk

634021, Russia^6

关键词: Original state;    Phase analysis;    Phase gradient;    Phase modification;    Rail steel;    Stress concentrators;    Structural elements;    Surface layer composition;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/112/1/012038/pdf
DOI  :  10.1088/1757-899X/112/1/012038

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The paper presents results of the structural and phase analysis of the surface layer composition in the type R65 rail steel in its original state and after long-term operation. It is shown that long-term operation of rail steel is accompanied by its structural and phase modification at a depth of not less than 2 mm. The structural elements are detected that can be stress concentrators.