Systematic and objective identification of the microstructure around damage directly from images
de Geus, T. W. J. · Du, C. · Hoefnagels, J. P. M. · Peerlings, R. H. J. · Geers, M. G. D.
Original · EN
An original experimental approach is presented to automatically determine the average phase distribution around damage sites in multi-phase materials. An objective measure is found to be the average intensity around damage sites, calculated using many images. This method has the following benefits: no phase identification or manual interventions are required, and statistical fluctuations and measurement noise are effectively averaged. The method is demonstrated for dual-phase steel, revealing subtle unexpected differences in the morphology surrounding damage in strongly and weakly banded microstructures.
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