Peened overlay coatings

Details Peened overlay coatings Peened overlay coatings

1981-09-10

1985-04-30

Padgett, Benjamin R.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

72 53, B22F 704, C21D 706

Patent

active

045144699

ABSTRACT:
Disclosed are coatings which are improved by a special peening process. Uniform sized spherical steel shot, in the range 1-2.5 mm is impacted at uniform low velocities onto a coated workpiece. Peening intensities are in the range 0.30-0.60 mm N. MCrAlY high temperature coatings are particularly improved, with densities of the order of 99 percent. Physical vapor desposited coatings have surface finishes of the order of 30.times.10.sup.-6 inch AA (Arithmetic Average) and plasma sprayed coatings have finishes of the order of 100.times.10.sup.-6 inch AA compared to unpeened finishes of 50-60.times.10.sup.-6 inch AA and 200-300.times.10.sup.-6 AA respectively.

REFERENCES:
patent: 3542530 (1970-11-01), Talboom
patent: 3590777 (1971-07-01), Elam et al.
patent: 3628994 (1971-12-01), Blecherman et al.
patent: 3639151 (1972-02-01), Krutenat
patent: 3667421 (1972-06-01), Bala
patent: 3676085 (1972-07-01), Evans
patent: 3918139 (1975-11-01), Felten
patent: 3928026 (1975-12-01), Hecht et al.
patent: 4034585 (1977-07-01), Straub
patent: 4235943 (1980-11-01), McComas et al.
patent: 4236059 (1980-11-01), McComas et al.
Kurz, "Shot Peening", Modern Machine Shop, (Jun. 1967), pp. 4-12; 20-23; 32-35.
Robertson, "The Effects of Shot Size on Residual . . . ", No. 710284, (Sep. 1968), SAE Transactions.
Metal Improvement Corp., "Shot Peening Applications", 6th Ed., (1980), p. 10.

Affiliated with

Also associated with

Rating

Peened overlay coatings does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Peened overlay coatings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Peened overlay coatings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1968392