Reconditioning of continuous casting machine rollers by laser cladding

The article presents the results of research of structures, compositions and tribological characteristics of coatings for continuous casting machine rollers. The coatings under research were obtained by methods of arc and laser cladding. The experiments were carried out on cylindrical samples of ste...

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Bibliographic Details
Published in:Journal of physics. Conference series 2020-11, Vol.1679 (4), p.42047
Main Authors: Makarov, A V, Kudryashov, A E, Nevezhin, S V, Gerasimov, A S, Vladimirov, A A
Format: Article
Language:English
Subjects:
Alloy powders
Alloying
Chromium
Coatings
Coefficient of friction
Continuous casting
Continuous casting machines
Continuous rolling
Ferrous alloys
Flux cored wires
Laser beam cladding
Lasers
Metallurgy
Molybdenum
Physics
Reconditioning
Rollers
Tribology
Wear rate
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Summary:The article presents the results of research of structures, compositions and tribological characteristics of coatings for continuous casting machine rollers. The coatings under research were obtained by methods of arc and laser cladding. The experiments were carried out on cylindrical samples of steel 20Cr13. A flux cored wire PP-Np-25Cr5VMoSi was taken as a material for cladding by the arc method. Sparingly alloyed iron-based powder Fe-Co-Cr-Mo was chosen as the material for laser cladding. The estimation of coating properties was carried out by the method of structural and phase analysis. Friction coefficients and wear rates for each cladding material were determined. The article offers an explanation of the differences in the properties of the coatings, which is based on the analysis of their formation conditions, as well as an assessment of the effectiveness of laser cladding in reconditioning of metallurgical equipment parts.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1679/4/042047