High-temperature oxidation of CrN/AlN multilayer coatings

High Temperature Oxidation Performance of Aluminide Coatings

In order to determine the potential benefits and limitations of aluminide coatings, coatings made by chemical vapor deposition (CVD) on Feand Ni-base alloy substrates are being evaluated in various hightemperature environments. Testing of coatings on representative ferritic (Fe-9Cr-1Mo) and austenitic (type 304L stainless steel) alloys has found that high frequency thermal cycling (1h cycle tim...

The Study of High Temperature Oxidation behavior of Different Microstructures of HVOF Thermally Sprayed Coatings

Improvement of thermally sprayed coating properties by microstructure modification has been considered as a significant solution. Therefore, in this research the effect of dissolved oxygen content and post heat treatment on the formation and distribution of secondary phase particles, particularly in nano-scale in the coatings during spraying and after that were studied. Ni-5 wt% Al powders were...

High temperature tribological performance of CrAlYN/CrN nanoscale multilayer coatings deposited on γ-TiAl

Nanoscale multilayer nitride coatings deposited by advanced PVD techniques have shown particular promise in improving the tribological properties of a number of modal alloy steels [1]. In this study, we report the effect of temperature on the friction and wear behaviour of a CrAlYN/CrN multilayer coating with a CrAlYON/CrON topcoat deposited on γ-TiAl. Deposition was performed by unbalanced mag...

Origin of high temperature oxidation resistance of Ti–Al–Ta–N coatings

a Christian Doppler Laboratory for Application Oriented Coating Development at the Institute of Materials Science and Technology, Vienna University of Technology, 1040 Vienna, Austria b Institute of Materials Science and Technology, Vienna University of Technology, 1040 Vienna, Austria c Oerlikon Balzers Coating AG, 9496 Balzers, Liechtenstein d Plansee Composite Materials GmbH, 86983 Lechbruck...

Some aspects of elemental behaviour in HVOF MCrAlY coatings in high-temperature oxidation