Precipitation hardening by nanoscale Ti2Ni phase in high Ti-rich Ti52.6Ni46.8Si0.6 melt-spun ribbon
Source abstract
Abstract
Abstract A high Ti-rich Ti52.6Ni46.8Si0.6 ribbon was investigated to reveal the precipitation hardening effect caused by the nano-scale Ti2Ni precipitates. TEM observations revealed only nano-scale Ti2Ni second phase in the ribbon after aging treatment, which induced the R phase transformation detected in DSC tests. Nanoindentation measurements demonstrated the increment of hardness from 2.43 GPa to 2.98 GPa, an increment of about 22%, in the first 3 h of aging treatment at 500 °C. The pseudoelasticity (PE) of the ribbon, evaluated by depth and energy recovery ratios of nanoindentation tests, also revealed that 3 h-aged ribbon had the best recovery performance. The shape memory effect (SME) of the 3 h-aged ribbon exhibited the best performance with a recoverable strain of 3.5% and an irrecoverable strain smaller than 0.1%. Both PE and SME tests demonstrated that the precipitation hardening effect of nano-scale Ti2Ni precipitates can effectively improve the shape memory properties of high Ti-rich TiNi shape memory ribbons.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Shape Memory Alloy Transformations
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Biomedical applications of shape memory alloys
2. Nitinol for medical applications: a brief introduction to the properties and processing of nickel titanium shape memory alloys and their use in stents10.1595/205651317X694524 ↗
3. Shape memory alloy thin films and heterostructures for MEMS applications: a review10.1016/j.sna.2016.02.026 ↗
4. Otsuka · 1999
5. The shape memory effect in meltspun ribbons
6. Microtweezers on the basis of two-way shape memory alloy ribbon
7. Influence of Ni on martensitic phase transformations in NiTi shape memory alloys10.1016/j.actamat.2010.02.019 ↗
8. Powder metallurgical processing of NiTi shape memory alloys with elevated transformation temperatures10.1016/j.msea.2008.01.084 ↗
9. Formation mechanism of Ni2Ti4Ox in NITI shape memory alloy10.1016/j.mtla.2018.100194 ↗
10. Intermetallic Ti2Ni/TiNi nanocomposite by rapid solidification10.1016/0956-7151(94)90289-5 ↗
11. Nanoindentation studies on precipitation hardening of Ti-rich Ti50.4Ni49.5Si0.1 shape memory ribbons10.1016/j.intermet.2013.01.009 ↗
12. Martensitic transformation and pseudoelasticity of aged Ti50.1Ni49.7Si0.2 shape memory ribbon10.1016/j.msea.2013.11.022 ↗
13. Shape memory characteristics of as-spun and annealed Ti51Ni49 crystalline ribbons10.1016/j.intermet.2010.01.010 ↗
14. Microstructures of Ti-48%Ni shape memory melt-spun ribbons10.1016/S1003-6326(06)60150-7 ↗
15. A study of the structure of G-P zones in Ti-rich TiNi shape memory melt-spun ribbons10.1080/14786435.2013.805273 ↗
16. Effect of heat treatment on shape memory behavior of Ti-rich TiNi thin films10.2320/matertrans1989.36.1349 ↗
17. The influence of the R-phase on the superelastic behavior of NiTi10.1007/s40830-015-0013-4 ↗
18. Origin of abnormal multi-stage martensitic transformation behavior in aged Ni-rich Ti–Ni shape memory alloys10.1016/j.actamat.2004.06.002 ↗
19. Nishida · 1986 · vol 17 · 1505
20. Hydrogen solubility and diffusion in the shape-memory alloy niti10.1088/0953-8984/1/14/003 ↗
21. A study on the crystallization behavior of amorphous Ti50Ni25Cu25 shape memory ribbon by X-ray diffraction measurement10.1016/j.intermet.2017.10.019 ↗
22. Kou · 2003
23. The evolution of Ti2Ni precipitates in annealed Ti51Ni49 shape memory melt-spun ribbons10.1080/09500831003630773 ↗
24. Precipitate-induced R-phase in martensitic transformation of as-spun and annealed Ti51Ni49 ribbons10.1016/j.jallcom.2010.06.019 ↗
25. Microstructure of Ti-48.2 at. pct Ni shape memory thin films10.1007/s11661-997-0155-x ↗
26. Effect of Ni-content on shape memory behavior of Ti-rich Ti-Ni melt-spun ribbons10.4028/www.scientific.net/MSF.475-479.1925 ↗
27. Indentation behavior of pseudoelastic TiNi alloy10.1016/S1359-6462(99)00199-2 ↗
28. Microscopic superelastic behavior of a nickel-titanium alloy under complex loading conditions10.1063/1.1569984 ↗
29. Nanoindentation of binary and ternary Ni-Ti-based shape memory alloy thin films10.1016/j.surfcoat.2007.11.011 ↗
30. Measurement and modelling of the nanoindentation response of shape memory alloys10.1016/j.actamat.2006.08.013 ↗
31. Origin of 2-stage R-phase transformation in low-temperature aged Ni-rich Ti–Ni alloys10.1016/j.actamat.2005.08.013 ↗
32. The effect of aging on the B2-R transformation behaviors in Ti-51at%Ni alloy10.1016/j.intermet.2011.07.014 ↗
33. Effect of nanoprecipitates on the transformation behavior and functional properties of a Ti–50.8at.% Ni alloy with micron-sized grains10.1016/j.actamat.2014.09.018 ↗
34. On the effect of alloy composition on martensite start temperatures and latent heats in Ni–Ti-based shape memory alloys10.1016/j.actamat.2015.02.029 ↗