Fatigue and Fretting Fatigue Behavior of Metallic Biomaterials

Abstract:

A fretting fatigue test method in a simulated body fluid is shown to evaluate fatigue properties of metallic materials which are used in the orthopaedics field. Next, fatigue/fretting fatigue behavior in a simulated body fluid is given for 316L stainless steel, Ti-6% Al-4% V alloy, pure Ti for industrial use and Co-Cr-Mo alloy. Finally, we discuss the relationship between the tensile strength and the fatigue strength/fretting fatigue strength of metallic biomaterials at 107 cycles in air and in a simulated body fluid. For all of the biomaterials tested, the fatigue strength at 107 cycles is similar in air and in a simulated body fluid. The fatigue strength is closely correlated to the tensile strength: The fatigue strength increases with increasing tensile strength. However, a correlation is not observed between the fretting fatigue strength at 107 cycles and the fatigue strength or the tensile strength.

• Periodical: Materials Science Forum (Volumes 638-642)
• Pages: 618-623
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.638-642.618
• Online since: January 2010
• Authors: Norio Maruyama
• Keywords: CoCr Alloy, Fatigue, Fatigue Strength, Fretting Fatigue, Metallic Biomaterial, Simulated Body Fluid (SBF), Stainless Steel (SS), Tensile Strength, Titanium Alloy

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