Fretting corrosion fatigue of biomaterials

摘要

Evaluation techniques for fretting corrosion properties of metallic biomaterials in air and in pseudo-body fluid and the representative results are reviewed. Two-stage fatigue test, consisting of the initial fretting fatigue test and the subsequent pure fatigue test, was adopted to investigate whether crack initiation or propagation dominates for fatigue fracture. The influence of fretting on fatigue property is discussed by separating the influence into the friction stress added to axial cyclic stress and the other additional effects, and the fretting fatigue property of some representative metallic biomaterials are compared.