Process for forming surface diffusion alloy layers on refractory

Details Process for forming surface diffusion alloy layers on refractory Process for forming surface diffusion alloy layers on refractory

1976-03-05

1978-06-20

Gwinnell, Harry J.

Coating processes

Foraminous product produced

Metal base

291568B, 148 63, 427250, 427252, 427253, 427300, 427401, C23C 902

Patent

active

040962962

ABSTRACT:
A metal article having perforations therein whose transverse cross-sectional dimension is less than 0.4 mm has formed thereon a surface diffusion alloy by applying a refractory filter element to the workpiece surface prior to the diffusion treatment, the filter element being a refractory felt based on metal fibres including chromium in a proportion by weight of from 10 to 60%. The felt is oxidized to give a layer of chromium oxide. This is followed by conventional thermochemical powder diffusion treatment in the presence of at least one chromium oxide-reducing element selected from aluminium, yttrium, titanium and the lanthanides.

REFERENCES:
patent: 2656283 (1953-10-01), Fink et al.
patent: 2921877 (1960-01-01), Samuel et al.
patent: 3585068 (1971-06-01), Holker et al.

Affiliated with

Also associated with

Rating

Process for forming surface diffusion alloy layers on refractory does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for forming surface diffusion alloy layers on refractory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for forming surface diffusion alloy layers on refractory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1135201