Method for ceramic peening of orthopaedic titanium alloy implants
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United States of America Patent
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Jan 6, 1998
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N/A
app pub date -
Jan 11, 1996
filing date -
Jan 11, 1996
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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.
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