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Tuesday, August 2, 2005 - 2:30 PM
SMT057.3

Wear Behavior of Boronized Chromium for Biojoints Applications

S. Ingole, H. Liang, R. Ribeiro, Texas A&M University, College Station, TX; M. Usta, Gebze Institute of Technology, Gebze, Turkey; C. Bindal, Sakarya University, Sakarya, Turkey; A. H. Ucisik, Bogazici University, Bebek - Instanbul, Turkey

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Summary: Chromium is one of the potential biomaterials due to its high corrosion resistance and biocompatibility. Boronizing can improve its wear resistance. Present investigation encompasses the wear behavior of this material at macrometer as well as at nanometer length scales. The pin-on-disc reciprocating tribometer was utilized to conduct the wear tests. The worn surfaces were analyzed using an Atomic Force Microscopy. Debris was analyzed using Transmission Electron Microscopy. Nanometer sized debris particles were formed during wear test. This study showed that boronized chromium enhances wear resistance and stabilizes frictional behavior. This presentation discusses the wear mechanisms.