Structure and Properties of Ag-Ni-N Coating Formed on Copper by Electroexplosive Spraying Combined with Pulsed Electron Beam Irradiation and Nitriding
Source abstract
Abstract
Combined methods of changing the material structure and properties are increasingly adopted for the modification of metals and alloys. Here we study the structure and properties of Ag-Ni-N coating formed on copper by electroexplosive spraying combined with pulsed electron beam irradiation and nitriding in low-pressure gas discharge plasma. It is shown that an 80-µm-thick coating has a 13% greater wear resistance, 3.5% lower friction coefficient, and 13% higher hardness as compared to copper. The main element of the coating is silver; nickel and copper are present in much smaller amounts. The coating and the substrate are separated by an 8-μm-thick transition layer enriched in nickel atoms. The coating is composed of solid solutions based on copper, nickel, and silver, as well as contains nickel, silver, and copper nitrides. The phase composition of the coating substantially depends on the energy density of the electron beam (at constant duration and number of beam pulses). The size of the crystallites forming the coating varies from 50 nm to several micrometers.
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Research context
OpenAlex topics: Metal and Thin Film Mechanics · Diamond and Carbon-based Materials Research · Ion-surface interactions and analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (21)
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