Nanoindentation in multi-modal map combinations: A Correlative Approach to Local Mechanical Property Assessment
arXiv:2008.12267 · doi:10.1557/s43578-020-00035-y
Abstract
A method is presented for the registration and correlation of intrinsic property maps of materials, including data from nanoindentation hardness, Electron Back-Scattered Diffraction (EBSD), Electron Micro-Probe Analysis (EPMA). This highly spatially resolved method allows for the study of micron-scale microstructural features, and has the capability to rapidly extract correlations between multiple features of interest from datasets containing thousands of datapoints. Two case studies are presented in commercially pure (CP) titanium: in the first instance, the effect of crystal anisotropy on measured hardness and, in the second instance, the effect of an oxygen diffusion layer on hardness. The independently collected property maps are registered us-ing affine geometric transformations and are interpolated to allow for direct correlation. The results show strong agreement with trends observed in the literature, as well as providing a large dataset to facilitate future statistical analysis of microstructure-dependent mechanisms.
arXiv comment33 pages, 15 figures (9 main body) + graphical abstract, code on Github @XPCorrelate
References in corpus (6)
- Review on Slip Transmission Criteria in Experiments and Crystal Plasticity Models
- Consistent determination of geometrically necessary dislocation density from simulations and experiments
- Dislocation density distribution at slip band-grain boundary intersections
- Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
- Cold Creep of Titanium: Analysis of stress relaxation using synchrotron diffraction and crystal plasticity simulations
- Quantifying the effect of oxygen on micro-mechanical properties of a near-alpha titanium alloy