Identification of a soft matrix-hard inclusion material by indentation

A new procedure for identifying the mechanical behavior of individual phases within a bi-material (matrix-particles) is presented. The case AlSi10Mg (large globularized Si-rich particles surrounded by an α-Al phase) processed additive manufacturing and post-treated taken as typical example. Grids nano-indentation tests are performed at different locations on nanocomposite using Berkovich indenter show impact hard inclusions experimental curves. elastoplastic properties matrix identified based lowest load–indentation depth Several representative finite element (FE) models demonstrate influence response. capacity FE model to predict indentation curve cube corner experiment grid result scattering was checked. volume (RVE) scanning electron microscope (SEM) image defined. material parameters phase Si phase, it allows prediction stress-strain macroscopic tensile test.