Properties of Cold Spray Coatings for Restoration of Worn-Out Contact Wires
Source abstract
Abstract
The influence of Cu-Al2O3-Zn powder mixtures for cold spraying on the properties of the coatings is studied. The coatings were deposited to restore worn-out copper contact wires, which were used as a substrate. The main parameters, such as adhesion, specific electrical conductivity, hardness, and wear resistance, were examined. The content of Al2O3 in the mixture varied from 30% to 60%, and the content of Zn, from 0% to 20%. The results obtained indicate that the 60Cu-40Al2O3 coating was the most adhesive and showed the best conductivity, while 40% Cu-50% Al2O3-10% Zn was found to be the most wear-resistant. The optimum spraying temperature was 500 °C.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · Electrical Contact Performance and Analysis · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of High-Efficiency Machining, Moscow State Technological University (MSUT STANKIN), Vadkovsky Per. 1, Vadkovsky Lane 3a, 127055 Moscow, Russia
LLC «TransTriboLogic», Skolkovo Innovation Center, Bulvar Bolshoy 42 Build. 1, Office 337, 121205 Moscow, Russia
Joint Stock Company Railway Research Institute, Moscow State Technological University (MSUT STANKIN), 3rd Mytischinskaya Street 10, 107996 Moscow, Russia
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