Evaluation of possibilities and perspectives of application of nanomaterial hard coatings

The paper is a review of the research on applications and testing of the nanomaterial hard coatings. The processing techniques for these materials and their main applications are presented first. The second part of the review is focused on the main objective of this work, which is numerical modelling of deformation of the nanomaterial hard coatings. Various approaches to this problem and main difficulties are discussed. Three main tests, which are used to identify the material parameters in the constitutive models, are described. The second part of the paper deals with the results of simulations performed by the Authors. Results of the finite element simulations of the nano-indentation test for multi-layer coating are presented and the predictive capabilities of the model are confirmed. The model will be further implemented into the inverse software for the considered tests.