Supplementary information for Can instrumented spherical indentation truly sense its own induced damage?

This Supporting Information provides supplementary experimental and numerical details for the study entitled “Can instrumented spherical indentation truly sense its own induced damage?” It includes cross-sectional surface roughness measurements, a comparison of dislocation-density calculation methods based on XRD peak broadening, and a single-element finite element procedure for estimating void volume fraction.

Additional results include enlarged XRD diffraction peaks, an analysis of frame-stiffness effects on the indentation-derived modulus, spatial maps of modulus variation, and enlarged cross-sectional SEM images at different indentation depths. The procedure used to identify the elastoplastic constitutive parameters of P92 steel is also described in detail.