The invention provides improved biocompatible implant alloys and methods of constructing artificial implants having improved long term wear properties. Cobalt-base biocompatible implant alloys provided according to the invention are essentially free of carbide, nitride and sigma second phase particles,...http://www.google.ca/patents/US6187045?utm_source=gb-gplus-sharePatent US6187045 - Enhanced biocompatible implants and alloys
