EXTENDED CHARACTERIZATION OF MATERIALS BASED ON CONTINUOUS INSTRUMENTED INDENTATION DIAGRAMS

Abstract

In addition to the traditional determination of hardness and elastic moduli from continuous diagrams of instrumental
indentation, it is proposed to determine the yield stress, the characteristic of plasticity, the characteristic relative size of the
elastoplastic zone under the indenter, and the volumetric deformation of the material in the area of contact of the indenter
with the sample. The indentation diagram shows the transition point to the unconstrained material flow under the indenter.