Study on the Effect of Strain Rate and Temperature on Mechanicalproperties of Nitinol

Abstract

The successful use of Nickel-Titanium (Nitinol) in biomedical applications requires an accurate control of its unique mechanical properties. The purpose of this study is to analyze the effects of a wide range of heat treatments on the mechanical behaviour of Nitinol. We have taken two different grades of Nitinol with different heat treatment history and surface characteristics. The sample with protective oxide coating showed higher elastic strain with comparatively large hysteresis.