High damping capacity in a wide temperature range of a compositionally graded TiNi alloy prepared by electroplating and diffusion annealing

A compositionally graded TiNi alloy was prepared by electroplating of Ni coating on TiNi substrate and diffusion annealing. The temperature range with damping capacity of larger than 0.04 was enlarged to above 110 degrees C for the compositionally graded alloy, which was almost 5 times of that for the homogeneous alloy. (C) 2014 Elsevier B.V. All rights reserved.