Study of the Structure of Wear-Resistant Coatings Obtained under Different Technological Modes of the Arc Metallization

DOI

10.2991/aviaent-19.2019.8How to use a DOI?

Keywords

wire arc metallization, cored wire, wear-resistant coating, modification, powder wire, structure, corundum

Abstract

Arc metallization of the cored wires is one of the modern surface engineering technologies assuring high quality surface layers. The wire arc spraying process is widely used for protection of metal against corrosion and for restoration of worn parts of machines and mechanisms. The present study used a cored wire development IPNPN with additives of corundum. Wear resistant coatings of about 300 ?m thickness were prepared through arc metallization of the flux-cored wires onto steel substrate. Technological modes of arc metallization such as current strength and arc voltage have a significant influence on the formation of coatings. The structure of coatings obtained at the current strength of 220-250, 250-280 and 280-300 A was studied. The microstructure of the coatings was characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). The structure of the metallized layer is characterized by a non-uniform layered structure. The distribution and number of reinforcing phases significantly affect the wear resistance, hardness and strength of the treated surface of machine parts and mechanisms. The study of the structure of the wear-resistant coating and the influence of technological modes of arc metallization on its formation will help in the further development of this method of surface treatment of parts and machines.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - M.Z. Borisova
AU  - N.F. Struchkov
AU  - G.G. Vinokurov
PY  - 2019/11
DA  - 2019/11
TI  - Study of the Structure of Wear-Resistant Coatings Obtained under Different Technological Modes of the Arc Metallization
BT  - Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)
PB  - Atlantis Press
SP  - 40
EP  - 44
SN  - 2352-5401
UR  - https://doi.org/10.2991/aviaent-19.2019.8
DO  - 10.2991/aviaent-19.2019.8
ID  - Borisova2019/11
ER  -