Determination of Fractured Steel Surface Roughness by Atomic Force Microscopy Using Fractal-based Approaches
✍ Scribed by Gollion, Ph.; Grenet, G.
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 382 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0142-2421
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✦ Synopsis
Roughness images of fractured steel surfaces were recorded at micrometric level (100-10 000 nm) using an atomic force microscope. We have observed a power law variation of the profile root-mean-square YS. the analysis length. If there is no overall tilt of the images, this variation is indicative of the (self-affne) fractal character of the surface morphology. Using first-principle methods, the fractal dimension of the studied fractured steel surfaces is found to be D = 1.13 f 0.06 at the micrometre scale and thus of the same order as previously published values obtained at the centimetre and millimetre scales.