Microplasmaspark alloying with ultrasonic surface modifying

Abstract

The analysis of the physical processes in microplasmaspark material processing based on the effects of the electrodischarge plasma and mechanical impact with a varying intensity (MPA, MPA + UM, UM + MPA + UM) was carried out. The impossibility of a universal theory’s construction describing the peculiarities of the above processes and being grounded on the basic principles of solid state physics was ascertained due to the given analysis. A new integrated approach valid both for the description of each of the described combined processing variants and for their comparative analysis is proposed, and it seems applicable for their parametric optimization. This approach for the physical interpretation of the experimental data set is based on the assumption that, during the transition from one mode of the cathode processing to another (from MPA to MPA + UM and to UM + MPA + UM), the initial structure state of the processed surface (that of the anode) undergoes an integral change that determines the structurization peculiarities at the subsequent alloying. The high correlation of the resilience properties, the resistance forces, the oscillation system’s inertance, and the maximum values of the mechanical energy with the resultant properties of the coatings formed at various energies and mechanical impact intensities during the alloying has been noted.