- Advertisement -
- Advertisement -

WC-(W,Cr)2C-Ni – the 'Unknown' Hardmetal Coating


Specialist Article

Authors: Dr.-Ing. Lutz-Michael Berger, Dipl.-Min. Sabine Saaro, Dr. Mathias Woydt
The composition WC-(W,Cr)2C-7%Ni is a standard commercially available composition for hardmetal feedstock powders and coatings, but it is sold under a variety of designations including WC-'CrC'-Ni, WC-Cr3C2-Ni and WC-NiCr. In this paper the specific microstructures and phase compositions of the feedstock powder and the HVOF-sprayed coatings are presented with a view to shedding light on the still-unknown application potential of this composition as well as its extraordinary oxidation resistance and advantageous behaviour in dry sliding conditions. These properties are compared with those of WC-10%Co-4%Cr coatings. As 50 years have passed since it was developed, this composition can well be said to be far from optimal for today’s HVOF equipment. There is hence room for improvement as well as for new applications.
Pages: 39 - 42
Ausgabe 1 (2008) Jahrgang 1 Page 39
Ausgabe 1 (2008) Jahrgang 1 Page 40
Ausgabe 1 (2008) Jahrgang 1 Page 41
Ausgabe 1 (2008) Jahrgang 1 Page 42
An active subscription enables you to download articles or entire issues as PDF-files. If you already are a subscriber, please login. More information about the subscription

More content

- Advertisement -
- Advertisement -
- Advertisement -