|About this Abstract
||Materials Science & Technology 2011
||Next Generation Biomaterials
||Comparison of Microstructures and Mechanical Properties for CoCrMo Biomedical Implant Prototypes Fabricated by EBM and Failed Implants by Traditional Manufacturing
||Sara Gaytan, L. E. Murr, E. Martinez, F. Medina, S. W. Stafford, U. Ackelid, R. B. Wicker
|On-Site Speaker (Planned)
Microstructural and mechanical properties are compared for an as-fabricated electron beam melting (EBM) femoral knee component prototype with a traditionally-fabricated and body-removed femoral knee implant. The alloy utilized for these implant components is Co-26Cr-6Mo-0.2C characterized by the standards of ASTM F75 cobalt alloy. Microstructural characterization was performed by optical metallography as well as SEM, TEM, EDS and XRD. Mechanical properties consist of Vickers and Rockwell-C scale hardness, as well as tensile testing, for the as-fabricated components. Only hardness testing was possible on the patient-extracted, traditional knee component. When the implant is annealed according to the ASTM F75 standard, the properties and microstructures are essentially the same regardless of the manufacturing mode.