CREATING A DIFFUSION LAYER ON THE NARROW SIDES OF THE MOLD OF CONTINUOUS CASTING MACHINE USING ALUMINUM THERMAL SPRAY COATINGS
https://doi.org/10.17073/0368-0797-2015-3-174-176
Abstract
To increase the service life of molds of CCM, there were created
diffusion layers on their worked narrow sides of copper M1 and
copper alloy MN2.5KoKrKh by sputtering of aluminum layer about
1.5 mm with subsequent diffusion annealing at T = 800 °C during
10 hours in an oxidizing atmosphere. It was found that on the copper surface of M1 it was observed hardening diffusion layer with thickness up to 1.5 mm, and of alloy MN2.5KoKrKh – 0.6 to 1.4 mm, that can be explained by the deterrence of diffusion process of contained alloying elements at subsequent thermal treatment. As the main indicators of the health of the diffusion layer authors used its thickness and microhardness. Du ring the analysis of the coated samples the feasibility of the application working on the narrow wall of the mold with aluminum thermal spray coating was established, followed by heat treatment in a protective atmosphere adjusted modes. The authors tested the mold of continuous casting machine with the assessment of the condition of the walls in the process of operation and changes in the quality of cast metal.
About the Authors
A. A. Gerasimova
National University of Science and Technology “MISIS” (MISIS) 4, Leninskii pr., Moscow, 119049, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor, Academic Secretary of the Chair “ITO”
A. G. Radyuk
National University of Science and Technology “MISIS” (MISIS) 4, Leninskii pr., Moscow, 119049, Russia
Russian Federation
Russian Federation
Sci. (Eng.), Professor of the Chair “Technology and Equipment for Pipe Production”
A. E. Titlyanov
National University of Science and Technology “MISIS” (MISIS) 4, Leninskii pr., Moscow, 119049, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Researcher of the Chair “Technology and Equipment for Pipe Production”
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Review
For citations:
Gerasimova A.A., Radyuk A.G., Titlyanov A.E. CREATING A DIFFUSION LAYER ON THE NARROW SIDES OF THE MOLD OF CONTINUOUS CASTING MACHINE USING ALUMINUM THERMAL SPRAY COATINGS. Izvestiya. Ferrous Metallurgy. 2015;58(3):174-176. (In Russ.) https://doi.org/10.17073/0368-0797-2015-3-174-176
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