Study of the Functional Characteristics of TiNi Coatings by the Computer-Aided Simulation Using Parallel Computing

The architecture and functionality of a program system that implements the paradigm of parallel execution of SIMD-tasks, in which a certain class of coatings with different parameter sets of particles sprayed onto the surface of technical products are simulated, is considered. Each SIMD-task uses a copy of the same computing module, which implements the computational foundations of a previously created software package for simulation the layered structure of a gas-thermal coating and calculating its functional characteristics. The program system allows you to run a series of computational experiments with the least amount of time due to the parallel running of SIMD-tasks for simulation a class of functional coatings, taking into account various spraying modes, and save electronic reports with illustrative research material in archival storage. The paper presents the results of simulation a class of coatings made of titanium nickelide (TiNi), taking into account various sets of “key physical parameters” (KPPs) of particles, characterizing different modes of coating spraying. In addition, based on the simulation results, an analysis was carried out of the variability of the coatings functional characteristics (porosity and adhesive strength of coatings, surface roughness of coatings) when varying the KPP-values in certain ranges. As a result of analyzing the simulation results of TiNi coatings and calculating their functional characteristics, optimal modes for the stable spraying of TiNi coatings on two types of substrates (on a Steel45 substrate and on a titanium substrate) were established.