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Yi Liu,Yiming Yu,Tuanwei Zhang,Renlong Xiong,Hyoung Seop Kim 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.4
A new image-processing method based on block-gradient segmentation was proposed to measure the volume fraction ofmechanical twins in metallographic images. The processing results showed that this automatic method could be used forrapid and effective measure of the twin-volume fractions of twinning-induced plasticity steels in metallographic images underdifferent strain conditions. The entire processing time for each image is relatively short, which would benefit researchersprocessing a large number of metallographic images. This method may pave a way to develop a simple, effective plug-in tomeasure rapidly the twin-volume fractions in the software for metallographic observations, and it would be beneficial forpreliminary analysis of microstructural evolutions and subsequent characterization of mechanical twins by high-resolutionmicroscopy using electron microscopy.