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2 Materials Science Poland

2 2005

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Multifractal description of fracture morphology: Quasi-3D analysis of fracture surface

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Stach S. , Cybo J. , Cwajna J. , Roskosz S.

tom Vol. 23, No. 2

567--575

The paper presents a verification of the multifractal analysis proposed in other papers. It has been found that the analysis of simulated profiles formed by removing overlaps and secondary cracks from a real profile ( which corresponds to a file obtained from a profilographometer) ensures proper diversity of fractal characterization, adequate for the degree of fracture surface development of the investigated grades of sintered carbide measured with a Taylor - Hobson's Talysurf 2 profilographometer.

Multifractal description of fracture morphology. Full 3D analysis of a fracture surface

100%

Stach S. , Cybo J. , Cwajna J. , Roskosz S.

tom Vol. 23, No. 2

577--584

Experimental verification of the theoretical methodology for describing a material's fracture morphology using multifractal analyis of a stereometrically examined surface ( full 3D analysis) is presented. A high effectiveness of a multifractal analysis has been shown for a diversified multifractal spectrum width and for a quantitative description of overlaps. The values obtained are very similar to those obtained by the quasi 3D method [ 6] as well as by conventional analysis, that is analysis of the profile images obtained from transverse microsections. The method presented, however, is the least time-consuming, the cheapest and seems to be the most objective for fracture morphology analyses.