The emergence of small-scale self-affine surface roughness from deformation
Adam R. Hinkle, Wolfram G. Nöhring, Richard J. Leute, Till Junge, Lars Pastewka
Abstract
and show that even surfaces of homogeneous materials develop a self-affine structure. By characterizing subsurface deformation, we connect the self-affinity of the surface to the spatial correlation of deformation events occurring within the bulk and present scaling relations for the evolution of roughness with strain. These results open routes toward interpreting and engineering roughness profiles.
Topics & Concepts
Surface roughnessMaterials scienceSurface finishDeformation (meteorology)MachiningAffine transformationAmorphous solidLength scaleScalingGeometryComposite materialCrystallographyMechanicsPhysicsMetallurgyMathematicsChemistryHigh-pressure geophysics and materialsMetallic Glasses and Amorphous Alloysnanoparticles nucleation surface interactions