Abstract
Ni 50Ti 45Ta 5 alloy is similar to equiatomic NiTi alloy with near equal transformation temperatures and having B2 ↔ B19′ one stage transformation. The main lattice twin is 〈0 1 1〉 type II twin. The lattice parameter of B2 austenite is a = 0.3025 nm, and the lattice parameters of B19′ martensite is a = 0.290 nm, b = 0.412 nm, c = 0.473 nm and β = 98.2°. The transformation temperature depression of Ni 50Ti 45Ta 5 alloy is larger than that of NiTi alloy under the same number of thermal cycles due to the presence of more particles. The martensite stabilization occurs due to the deformation. It is closely related to the variation of the elastic energy and the irreversible energy during deformation. The Ni 50Ti 45Ta 5 alloy has a higher martensite stabilization than NiTi alloy under the same degree of deformation due to the presence of a soft β-Ta phase.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.