EP 1077272 A1 20010221 - Titanium carbide/tungsten boride coatings
Title (en)
Titanium carbide/tungsten boride coatings
Title (de)
Titankarbid/Wolframborid-Überzüge
Title (fr)
Revêtements en carbure de titane/borure de tungstène
Publication
Application
Priority
EP 99116068 A 19990816
Abstract (en)
A family of titanium carbide/tungsten boride coatings having excellent wear and corrosion resistance is disclosed. The coatings comprise hard, ultrafine, titanium carbide particles and tungsten boride precipitates dispersed in a metal matrix, the two phases constituting from about 30 to abut 80 volume percent of the coating, the balance being metal matrix. The metal matrix contains nickel, cobalt and/or iron. The coatings may be prepared by depositing a mechanically blended powder mixture composed of separate components including a first component containing tungsten carbide and a second component containing boron and at least one metal selected from the group consisting of nickel, cobalt and iron, the powder mixture including titanium in the first or second component or in a separate third component, at least one of the first, second or third components having a melting point below about 1200 DEG C, and then heat treating the as-deposited coating. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
Citation (search report)
- [X] GB 2106144 A 19830407 - UNION CARBIDE CORP [US]
- [A] EP 0605175 A2 19940706 - PRAXAIR TECHNOLOGY INC [US]
- [A] EP 0927774 A1 19990707 - NIPPON STEEL HARDFACING [JP]
- [A] WO 9311277 A1 19930610 - NIPPON STEEL HARDFACING [JP]
- [A] GB 2230539 A 19901024 - CASTOLIN SA [CH]
- [E] US 5966585 A 19991012 - SUE JIINJEN ALBERT [US]
- [A] GB 2116207 A 19830921 - MARKO MATERIALS INC
- [A] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 30 June 1999 (1999-06-30)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 99116068 A 19990816