Abstract
It has been found that peculiar behavior with low elastic modulus and high strength is achieved by cold working in a betatype titanium alloy, Gum Metal. It is considered that the origin of this peculiar behavior is attributed to its unique deformation mechanism, which has not been clarified yet. Therefore, we pursue the goal of catching a clue of its deformation mechanism. In this study, we report results of Vickers hardness test and nanoindentation test in cold rolled specimens of Ti-18%Mo alloy, which is used as a material for comparisons with Gum Metal.
