Digital Analysis of Shape and Size of Dimples of Ductile Tearing on Fracture Surface of Long-Operated Steel

An improved dimple image quantitative analysis method based on mathematics morphology was proposed. The developed method allows identifying the elements of the network of dimples of ductile dearing, determining their number, shape and specific share within the analyzed area. The efficiency of the method is demonstrated by the analysis of fracture surface of steel 17G1S, taking into account their morphological characteristics, and its quantitative analysis was accurate, effective and convenient.