Journal
SCRIPTA MATERIALIA
Volume 62, Issue 2, Pages 109-112Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2009.09.011
Keywords
Fracture; Fractal; HSLA; Fracture toughness
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A model to compute an effective microstructural length scale by fractal analysis of self-affine tensile fractographic images has been proposed. Good correlation between the characteristic microstructural length scale and the average circular diameter of voids as well as yield strength is demonstrated for a Cu-strengthened HSLA steel. Using the fractal-based model, fracture toughness is computed, which agrees well with that determined experimentally. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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