Receiving Wear-Resistance Coverings Additives of Nanoparticles of Refractory Metals at a Laser Cladding

24th International Laser Physics Workshop

Murzakov, M.A.^1 ; Petrovskiy, V.N.^1 ; Bykovskiy, D.P.^1 ; Andreev, A.O.^1 ; Birukov, V.P.^2 ; Markushov, Y.V.^1

National Research Nuclear University MEPhI, Moscow, Russia^1

IMASH RAN, Moscow, Russia^2

关键词: Carbon steel substrates;    Commercial powders;    Deposited coatings;    Elemental compositions;    Laser cladding technology;    Nano powders;    Wear-resistant coating;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/691/1/012009/pdf
DOI  :  10.1088/1742-6596/691/1/012009

来源: IOP

【 摘 要 】

Laser cladding technology was used to conduct experiments on production of wear-resistant coatings with additive nanoparticles of refractory metals (WC, TaC). Mechanical testing of coating abrasion was made using Brinell-Howarth method. The obtained data was compared with wear- resistance of commercial powder containing WC. It was found that at a concentration 10-15% coating with nanopowder additives shows a dramatic increase in wear-resistance by 4-6 times as compared to carbon steel substrate. There were conducted metallurgical studies of coatings on inverse electron reflection. There was determined elemental composition of deposited coating and substrate, and microhardness measured. It was found that structure of deposited coating with nanoparticles is fine.