|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||Spherical Nanoindentation Investigation on Ti-Pt-Ni-Hf Shape Memory Alloys
||Ali Khosravani, Manu S. Mohan, Dipankar Banerjee, Surya R. Kalidindi
|On-Site Speaker (Planned)
In this study, mechanical properties of four shape memory alloys; Ni40Pt10Ti40Hf10, Ni40Pt10Ti35Hf15, Ni45Pt5Ti40Hf10, Ni35Pt15Ti30Hf20, were studied using spherical nano indentation technique. The anisotropy of elastic and plastic properties of each alloy was investigated on different grain orientations. The nanoindentation tests were performed using a 16 µm spherical tip radius and data were analyzed to extract indentation stress-strain curves. Then indentation elastic modulus (Eind), yield strength (Yind), and hardening rate (Hind) were extracted and presented as a function of the grain lattice orientation in all alloy compositions. In addition, the effects of the orientation and the alloy composition were investigated on the residual strain after unloading in nanoindentation tests.
||Planned: None Selected