PSI - Issue 20

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect StructuralIntegrity Procedia 00 (2018) 000 – 000 Available online at www.sciencedirect.com ScienceDirect StructuralIntegrity Procedia 00 (2018) 000 – 000

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ScienceDirect

Procedia Structural Integrity 20 (2019) 48–52

1st International Conference on Integrity and Lifetime in Extreme Environment (ILEE-2019) Evaluation of the content of corundum in the wear-resistant coating applied by wire arc metallization of a powder wire with fireproof additives Borisova M.Z. a, * , Struchkov N.F. a , Vinkurov G.G. a a V. P. Larionov Institute of the physical-technical problems of the North SB RAS, Yakutsk 677980, Russian Federation Abstract In this paper, the evalua tion of the content of corundum (α -Al 2 O 3 ) in the wear-resistant coating applied by wire arc metallization of a powder wire with fireproof additives has been carried out. One of the most promising high-energy methods of application of wear-resistant coatings is electric arc metallization wires, the use of the powder wires for the restoration of worn parts of equipment gives unparalleled flexibility in choice of coating material and in coatings with a variety of properties – high hardness and wear resistance, corrosion resistance, high heat resistance and heat resistance and etc. Coatings of about 300 μm thickness were prepared through high temperature fusing of a powder wires on steel substrate. Corundum particles were used as a strengthening additive, Al 2 O 3 particles exhibit high hardness, good wear resistance and thermal stability. The microstructure and morphology of the wear-resistant coatings were investigated. It is shown that the thickness of the deposited layers in the coating does not depend on the change in the magnitude of the current. The aim of this study was to investigate the influence of the arc metallization on the microstructure of the wire sprayed coatings. Meanwhile, the distribution of chemical elements in obtained coatings were investigated. In addition we found the dependence of the corundum content in the wire thermal sprayed coatings from current strength. 1st International Conference on Integrity and Lifetime in Extreme Environment (ILEE-2019) Evaluation of the content of corundum in the wear-resistant coating applied by wire arc metallization of a powder wire with fireproof additives Borisova M.Z. a, * , Struchkov N.F. a , Vinkurov G.G. a a V. P. Larionov Institute of the physical-technical problems of the North SB RAS, Yakutsk 677980, Russian Federation Abstract In this paper, the evalua tion of the content of corundum (α -Al 2 O 3 ) in th wear-resistant coating appli d by wire arc metallization of a powder wire with fireproof additives has been carri d out. One of the most promising high- nergy methods of application of wear-resista t coatings is electric arc metallization wires, the use of the powder wires for the restoration of worn p rts of equipm nt gives unparalleled flexibility in c oice of coating material and in coatings with a variety of properties – high hardness and wear resistance, corrosion resistance, high heat resistance and heat resistance and etc. Coatings of about 300 μm thickness were prepared through high temperature fusing of a powder ires on steel substrate. Corundum particles were used as strengthenin additive, Al 2 O 3 particles exhibit high hardness, good wear resistance and thermal stability. The microstructur and morphology of the wear-resistant coatings were investigated. It is s own that the thickness of the deposited layers in the coating does not depend on the change in the magnitude of th current. The aim of this study was to investigate the influence of the arc met llization on th microstructure of the wire spraye coatings. Meanwhile, the distribution of chemical elements in obtai ed c atings were investigated. In addition we found the dependence of the corundum content in the wire thermal sprayed coatings from current strength.

© 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers © 2019 The Author(s). Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers © 2019 The Author(s). Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers

Keywords: wire arc metallization; cored wire; wear-resistant coating; modification; powder wire; structure; corundum Keywords: wire arc metallization; cored wire; wear-resistant coating; modification; powder wire; structure; corundum

2452-3216 © 2019 The Author(s). Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers 2452 3216 © 2019 The Author(s). Publis ed by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers * Correspon ing author. Tel.: +7-914-271-2305; fax: +7-4112-336665. E-mail address: bormaria@yandex.ru * Corresponding author. Tel.: +7-914-271-2305; fax: +7-4112-336665. E-mail address: bormaria@yandex.ru

2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers 10.1016/j.prostr.2019.12.114