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Cathodic Arc Evaporated CrAlSiN Coatings with Multi-Cycle Depositions
Abstract:
CrAlSiN film possesses superior hardness, good thermal and chemical stability due to its multi-component constituents and unique structure. To further explore the reproducibility and scale-up thickness of CrAlSiN coatings, the multi-cycle deposition of CrAlSiN coatings by cathodic arc evaporation was conducted in this study in order to evaluate the effect of coating thickness on the properties of CrAlSiN coated materials. Two targets of Al0.8Si0.2 and Cr (99.99 at%) along with altering deposition cycles were used for the coatings. The results showed that the CrAlSiN coatings had an increase in hardness up to 4700 HV50g confirmed by Vickers hardness tests. Surface roughness of the coatings could be dramatically improved by erosion tests as a result of removing droplets and higher asperities on the coating surface.
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517-521
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Online since:
February 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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