Self-affine fracture surface parameters and their relationship with microstructure in a cast aluminum alloy

摘要: The possible role of microstructural features in determining the self-affinity fracture surface a cast aluminum alloy is explored this work. Fracture surfaces generated both tension and impact tests were topometrically analyzed by atomic force microscopy, scanning electron stylus profilometry. roughness exponent exhibited “universal” value ζ ≈ 0.78, correlation length was order grain size. brittle intermetallic compounds known to be important crack initiation did not show any with self-affine parameters resulting particular case.