Abstract
This paper presents a simple mechanical explanation of two different experimentally verified crack patterns occurring in a thin TiN-layer coating on a steel substrate. The load stress state is generated on the concave side of a bending specimen where the layer is connected with the substrate. Obviously, the special kinds of failure result from different interactions between the layer and the surface of the substrate and depend on the special stress and deformation states in accordance with the layer's thickness. The regions for the models used are characterised and the transition from membrane cracking to separation buckling is determined and discussed in connection with fracture mechanics applications.
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Scherzer, M., Gläser, H. Mechanical Modelling of Failure Patterns in TiN-Coatings Loaded by Homogenous Stresses of a Bending Specimen. International Journal of Fracture 114, 291–306 (2002). https://doi.org/10.1023/A:1015573630806
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DOI: https://doi.org/10.1023/A:1015573630806