Nanostructured titanium alloys and multicomponent bioactive films: Mechanical behavior at indentation

Three-dimensional movable cellular automata simulation of elastoplastic deformation and fracture of coatings in contact interaction with a rigid indenter

“…3b). The obtained results agree with the experimental data showing that indentation of a thin coating at high loads depends largely on the properties of its substrate [9,11,39,40]. The elastic stress distribution in the specimen (.ig.…”

“…The calculation results agree well with experimental data at a maximum indenter load of 2 mN [39,40]. The influence of the substrate on the Ph diagram was studied by simulation of indentation to a larger depth.…”

“….or this purpose, we used specimens with a total height of 2.5 and 5.0 µm and with a size of automata of 70 and 140 nm, respectively; the coating thickness was 1000 nm. .igure 5 shows Ph diagrams obtained in calculation and experiments [39,40]. The calculation and available experimental data agree well suggesting that the proposed model is good at describing the peculiarities of strain-induced behavior of the systems considered.…”

“…σ According to the data of [39,40], these parameters for the substrate were ρ = 4500 kg/m 3 , G = 41 GPa, K = 100 GPa, and y σ = 2 GPa, and for the coating, ρ = 4700 kg/m 3 , G = 76 GPa, K = 167 GPa, and y σ = 15 GPa. In experiments on nanoindentation and scratch testing, diamond indenters are normally used.…”

“…5. Indentation diagrams for the titanium specimen with a nanostructured coating: experiments [39,40] (1, 3); calculations (2, 4).…”