Abstract Scope |
The creation of shape memory alloys through repeated thermomechanical loading establishes an effect allowing materials to withstand drastic temperature ranges while still being able to return to their original forms within the solid-state. When cold sprayed, this feature in SMAs helps with negatively correlated effects such as cyclic fatigue, erosion and more. Characterization methods can be used to examine the features of SMA powders, and when done, can be analyzed to maximize the effects of cold spraying and create the best overall outcome when applied. In this study, the characterization of nitinol powder was done through the usage of techniques such as SEM, Particle Compression, XRD, Microtraking and Optical Analysis. Spherical particles presented with an average diameter of 16.492 um and an average compression force of 507.952 mN. XRD analysis showed that the helium spray was most similar to the as-received powder than nitrogen. |