Method for ceramic peening of orthopaedic titanium alloy implant

Details Method for ceramic peening of orthopaedic titanium alloy implant Method for ceramic peening of orthopaedic titanium alloy implant

1996-01-11

1998-01-06

Jones, David

Metal deforming

By shot-blasting

29 907, 451 38, B24C 110

Patent

active

057042390

ABSTRACT:
A method of preparing fretting wear resistant titaniumbase alloy orthopaedic implants includes the steps of shot peening the surface of the implant with spherical ceramic beads of a selected size and density, and with selected intensity such that the fretting wear resistance of the implant is increased and wherein the implant surface is uniformly peened to create a compressively-stressed region within the surface of approximately 100-300 microns depth.

REFERENCES:
patent: 5057108 (1991-10-01), Shetty et al.
patent: 5251468 (1993-10-01), Lin et al.
"Shot Peening" by Robert B. Heaton, Metal Finishing, Jul., 1989.

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