Powder for use in thermal spraying

Details Powder for use in thermal spraying Powder for use in thermal spraying

Filed on

1996-12-12

Date issued

1998-05-05

Examiner

Jenkins, Daniel J.

Patent Class

Stock material or miscellaneous articles

SubClass

Coated or structually defined flake, particle, cell, strand,...

SubSubClass

Particulate matter

Other Related Categories

428403, C23C 404, C23C 406

Type

Patent

Status

active

Patent number

057471630

Description

ABSTRACT:
A powder for use in a thermal spraying coating process comprises particles consisting essentially of a metal carbide core coated at least partially with a layer consisting essentially of a nickel-chromium alloy containing the metal carbide dissolved therein. The particles are formed by heating a mixture of fine starting particles of the metal carbide in the presence of the nickel-chromium alloy under conditions effective to cause a portion, preferably 60 to 90 wt. %, of the starting metal carbide to dissolve in the Ni--Cr alloy. In an alternate embodiment suitable for higher temperature application, more than 90 wt. % of the starting carbide particles are dissolved. As the amount dissolved approaches 100 wt. %, the core essentially disappears. Coatings formed according to the invention show an unexpectedly large increase in both smoothness and erosion resistance.

REFERENCES:
patent: 3655425 (1972-04-01), Longo et al.
patent: 4374173 (1983-02-01), Adamovic
patent: 4508788 (1985-04-01), Cheney
patent: 4578114 (1986-03-01), Rangaswamy et al.
patent: 4578115 (1986-03-01), Harrington et al.
patent: 4606948 (1986-08-01), Hijrmrle et al.
patent: 4725508 (1988-02-01), Rangaswamy et al.
patent: 5137422 (1992-08-01), Price et al.
patent: 5328763 (1994-07-01), Terry
patent: 5385789 (1995-01-01), Rangaswamy et al.
patent: 5419976 (1995-05-01), Dulin
patent: 5458460 (1995-10-01), Okada et al.

Affiliated with

Also associated with

Rating

Powder for use in thermal spraying does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Powder for use in thermal spraying, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Powder for use in thermal spraying will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-51851