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Effects of Burnishing Pattern on Surface Integrity in Microforming of Biodegradable Bone Implants

[+] Author Affiliations
M. Salahshoor, Y. B. Guo

The University of Alabama, Tuscaloosa, AL

Paper No. IJTC2011-61041, pp. 27-29; 3 pages
  • ASME/STLE 2011 International Joint Tribology Conference
  • ASME/STLE 2011 Joint Tribology Conference
  • Los Angeles, California, USA, Oct 24–26, 2011
  • ISBN: 978-0-7918-5474-7
  • Copyright © 2011 by ASME


When a medical device is implanted into the human body, either hard or soft tissue, the body will respond to the device surface. While the bulk material of the device is often important for structural integrity, the device surface is at the interface with biology function. Major effort has been spent modifying an implant surface in order to control a biological response. Metallic biodegradable Magnesium-Calcium (MgCa) alloys have attracted an increased attention for orthopedic fixation applications. This research focuses on plastic burnishing as a novel micro forming technique that is tune surface integrity to control biodegradation as a biological response. The effects of burnishing pattern as an important process parameter on surface integrity characteristics such as surface roughness, surface topography, microstracture, microhardness, and residual stresses are investigated.

Copyright © 2011 by ASME



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