Investigation of multi-layer coatings on cemented carbide cutting tools by analytical electron microscopy |
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| Authors: | Ferdinand Hofer Peter Warbichler Per Björn Anderson Reinhard Pitonak |
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| Institution: | (1) Zentrum für Elektronenmikroskopie, Steyrergasse 17, A-8010 Graz, Austria;(2) Böhlerit GmbH, A-8605 Kapfenberg, Austria |
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| Abstract: | Multi-layer coatings on cemented carbide substrates have been investigated by analytical electron microscopy (AEM). The samples were taken from cross-sections through the coating thus enabling a study of individual layers and interfaces. Various phenomena are shown: (1) tungsten diffusion and graphite inclusions in TiC layers, (2) oxygen impurities in Ti(C, N) coatings and (3) the occurrence of titanium oxinitrides in the interface between the Al2O3 and TiN-layers.Dedicated to Professor Günther Tölg on the occasion of his 60th birthday |
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| Keywords: | coatings cemented carbides analytical electron microscopy |
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