Ion implanted hardmetal cemented carbide cold sprayed coatings
AssigneeUniversity of The Witwatersand, Johannesburg
InventorsPeerawatt Nunthavarawong, Natasha Sacks
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Abstract
The present invention provides for an ion implanted cold sprayed hardmetal cemented carbide coating and a method to prepare the coating. The coating comprises hardmetal carbide and a binder metal M selected from nickel, cobalt, copper, iron, and alloys thereof. The coating is implanted with ions selected from Nb+, Mo+, W+, Ta+, and Ru+ ions.
Claims21
An ion implanted cold sprayed hardmetal cemented carbide coating, the coating comprising a hardmetal carbide and a binder metal M selected from the group consisting of nickel, cobalt, copper, iron, and alloys thereof, wherein the coating is implanted with ions selected from the group consisting of Nb+, Mo+, W+, Ta+, and Ru+.
A method of forming an ion implanted cold sprayed hardmetal cemented carbide coating, the method comprising the steps of:
- (a) cold spraying a hardmetal cemented carbide coating onto a substrate to be coated, and
- (b) implanting ions selected from the group consisting of Nb+, Mo+, W+, Ta+, and Ru+ with an ion implanter at an acceleration voltage of about 40 keV to about 170 keV,
- wherein the coating comprises a hardmetal carbide and a binder metal M selected from the group consisting of nickel, cobalt, copper, iron, and alloys thereof.
21-22. (canceled)
Dependencies are inferred from the claim text.