Original title: Benefits of use of acoustic emission in scratch testing
Authors: Václavek, L. ; Tomáštík, Jan ; Chmelíčková, H. ; Čtvrtlík, R.
Document type: Papers
Conference/Event: International Conference on Local Mechanical Properties /14./, Prague (CZ), 20191106
Year: 2020
Language: eng
Abstract: Scratch test is regularly used for assessment of cohesive and adhesive strength of thin films and coatings. By default, its evaluation is based on analysis of depth-load-time record and microscopic observation of residual scratch groove. The visual analysis of the residual groove provides the most detailed description of the final damage of the surface (crack patterns, extent of plastic deformation, delamination, etc.), but it may be a time demanding approach. Although the continuous recording of indenter penetration depth and applied load offers instantaneous information about the performance of the tested material, it may not provide sufficient description of the sample’s deformation behaviour. Therefore, other complementary techniques for description of the deformation response to scratch loading are desirable.
Keywords: acoustic emission; laser cladding; scratch test; thin films
Host item entry: Acta Polytechnica CTU Proceedings, ISBN 978-80-01-06735-2, ISSN 2336-5382

Institution: Institute of Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0315384

Permalink: http://www.nusl.cz/ntk/nusl-432670


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