|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Recent Investigations and Developments of Titanium-containing High Entropy Alloys
||Effect of Hf and Zr composition on the phase equilibria and transformation temperatures of the (TiZrHf)50Co10Ni25Cu15 multi-principal element shape memory alloy
||Brittani Maskley, Michele V. Manuel
|On-Site Speaker (Planned)
The Ti16.7Zr16.7Hf16.7Co10Ni25Cu15 multi-principal element shape memory alloy (SMA) demonstrates high transformation temperatures and fully recoverable strain with respect to its parent NiTi SMA counterpart. However, little is known about the effect of composition on the transformation temperatures and phase equilibria. This work explored variations in Hf and Zr content on the martensitic transformation and microstructural evolution. In arc melted samples that were heat-treated at 950°C for 100h, the Zr composition has the largest impact on phase transformation temperatures with an increase of 33°C per at.% Zr in contrast to the increase of 23°C per at.% Hf.
||Planned: None Selected