No abstract

No abstract

No abstract

DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement:

Segregation-induced microstructural banding is commonly encountered in commercial steels, yet its effect on the global mechanical behavior is disputed in the literature due to the difficulty of designing clean control experiments. This work locally compares the deformation of banded phases with unbanded regions in the same microstructure from in-situ electron micrographs analyzed with (optimized) micrographic digital image correlation. To this end, first, the employed electron micrographic digital image correlation (EMDIC) methodology is optimized in terms of its experimental parameters: specimen surface preparation settings, scanning electron microscopy imaging settings (contrast modes, magnification, resolution, and contrast-brightness), and image correlation settings (facet size and facet step size). Subsequently, the strength of the (optimized) EMDIC methodology is demonstrated on a case study on segregation-induced microstructural banding in steel, in which the influence of the banded phase and its morphology is probed by comparing the mechanical behavior of two carefully chosen, extreme cases of banded microstructures: a microstructure containing a continuous, hard band (the martensitic-ferritic system) and a microstructure containing non-continuous, softer bands (the pearlitic-ferritic system). The obtained micro-scale strain fields yield clear insight into the influence of band structure, morphology and band material properties.