from the conferences organized by TANGER Ltd.
The macroscopic mechanical properties of steel are highly dependent upon microstructure, crystallographic orientation of grains and distribution of each phase present etc. Nanomechanical testing using depth sensing indentation (DSI) provides a straightforward solution for quantitatively characterizing each of phases in microstructure because it is very powerful technique for characterization of materials in small volumes. Measuring the local properties (indentation hardness HIT, Young’s modulus EIT, indentation energy: total W, elastic Wel, plastic Wpl) of each microstructure component separately in multiphase materials gives information that is valuable for the development of new materials and for modelling [1].In this work, depth sensing indentation has been used to reveal mechanical properties of individual ferrite grains with different crystallographic orientations in various steel sheets. Electron backscatter diffraction (EBSD) analysis was used to determine the grain orientations, in which were made the nanohardness measurements.
Keywords: Berkovich diamond indenter, crystallographic orientation, hardness, Young’s modulus, steel sheet© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.