Effect of carbon addition on the microstructure and mechanical behavior of near equiatomic NiTi alloy wire
Source abstract
Abstract
According to the phase diagram, 0.03 wt% (C0.03) and 0.05 wt% (C0.05) carbon were added to Ni50.2Ti49.8 alloy, and the alloy wires with a diameter of 1.2 mm were prepared by vacuum induction melting and drawing. The results show that during melting and solidification, C combines with Ti in C0.03 and C0.05 to form eutectic TiC and primary TiC, respectively. Compared with the NiTi alloy wire without C, the tensile fatigue life (22866 cycles under 700 MPa tensile stress) and tensile strength (1536 MPa) of the alloy were increased by 39 % and 22 % respectively when 0.03 wt% C was added. With the further increase of C content to 0.05 wt%, the two properties began to deteriorate. This is mainly related to the changes of matrix phase composition, second phase morphology and internal microstructure caused by the addition of different amounts of C. The research results show that on the premise of following the requirements for C content (C ≤ 0.04 wt%) in the international standard ASTM F2063-18 for medical NiTi alloy composition, adding a certain amount of C (such as 0.03 wt%) to NiTi alloy is beneficial to improving the tensile strength and tensile fatigue life of wire.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Shape Memory Alloy Transformations · High Entropy Alloys Studies · Titanium Alloys Microstructure and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Instability of cyclic superelastic deformation of NiTi investigated by synchrotron X-ray diffraction [J]10.1016/j.actamat.2015.04.039 ↗
2. Nanocomposite NiTi shape memory alloy with high strength and fatigue resistance [J]10.1038/s41565-020-00837-5 ↗
3. Enhancement of physical and mechanical characteristics of NiTi composite containing Ag and TiC [J]10.1007/s11665-021-06451-3 ↗
4. An investigation on Ni4Ti3 phase precipitation and its effects in laser directed energy deposition of TiC-NiTi composites [J]
5. Ultrahigh cycle fatigue of nanocrystalline NiTi tubes for elastocaloric cooling [J]
6. The effects of vacuum induction melting and electron beam melting techniques on the purity of NiTi shape memory alloys [J]10.1016/j.msea.2006.02.171 ↗
7. Vacuum induction melting of NiTi shape memory alloys in graphite crucible [J]10.1016/j.msea.2007.04.039 ↗
8. Impact of material structure on the fatigue behaviour of NiTi leading to a modified Coffin-Manson equation [J]10.1016/j.msea.2013.07.072 ↗
9. On the reaction between NiTi melts and crucible graphite during vacuum induction melting of NiTi shape memory alloys [J]10.1016/j.actamat.2005.05.004 ↗
10. Effect of graphite addition on martensitic transformation and damping behavior of NiTi shape memory alloy [J]10.1016/j.matlet.2011.01.027 ↗
11. The mechanism of multistage martensitic transformations in aged Ni-rich NiTi shape memory alloys [J]10.1016/S1359-6454(01)00385-8 ↗
12. Frenzel J, Zhang Z, Somsen C, Neuking K, Eggeler G. Influence of carbon on martensitic phase transformations in NiTi shape memory alloys [J]. Acta Materialia, 2007, 55(4): 1331-1341. 10.1016/j.actamat.2006.10.006.10.1016/j.actamat.2006.10.006 ↗
13. Influence of Ni on martensitic phase transformations in NiTi shape memory alloys [J]10.1016/j.actamat.2010.02.019 ↗
14. Orientation relationship between TiC carbides and B2 phase in as-cast and heat-treated NiTi shape memory alloys [J]10.1016/j.msea.2006.02.161 ↗
15. Grain boundary engineering during the laser powder bed fusion of TiC/316L stainless steel composites: New mechanism for forming TiC-induced special grain boundaries [J]
16. Effect of TiC particles on the mechanical properties of aluminium alloy metal matrix composites (MMCs) [J]
17. Microstructural characterization of in situ TiC/Al and TiC/Al-20Si-5Fe-3Cu-1Mg composites prepared by spray deposition [J]10.1016/S1359-6454(03)00292-1 ↗
18. Three-body abrasion wear resistance of TiC-reinforced low-alloy abrasion-resistant martensitic steel under dry and wet sand conditions [J]
19. Improvement in wear resistance of TiNi-based composites by hot isostatic pressing [J]10.1016/S0921-5093(01)01655-0 ↗
20. Electrolytic processing of NiTi shape memory alloys [J]10.1016/j.msea.2003.11.080 ↗
21. Improved functional stability of a coarse-grained Ti-50.8 at.% Ni shape memory alloy achieved by precipitation on dislocation networks [J]10.1016/j.scriptamat.2019.01.006 ↗
22. High strength NiTiHf shape memory alloys with tailorable properties [J]10.1016/j.actamat.2017.05.065 ↗
23. Effect of temperature and texture on the reorientation of martensite variants in NiTi shape memory alloys [J]10.1016/j.actamat.2017.01.023 ↗
24. Hu G X, Cai X, Rong Y H. Fundamentals of Materials Science [M]. Shanghai Jiaotong University Press, 2006.
25. Zhong W Z, Hua S K. Geometry of Crystal Growth [M]. Beijing: Science Press, 1999:205.
26. Xu Z Y, Jiang B H. Shape Memory Material [M]. Shanghai Jiaotong University Press, 2000.
27. Wang X. Crystallization and martensitic transformation behavior of nickel-titanium shape memory alloy thin films [D]. Harvard University, 2007.
28. Crystal structures and shape-memory behaviour of NiTi [J]10.1038/nmat884 ↗
29. The formation mechanism of stacking faults in ZrFe2 Laves phase in Zircaloy-4 alloy [J]
30. Stacking faults in Zr(Fe, Cr)2 Laves structured secondary phase particle in Zircaloy-4 alloy [J]10.1039/C7NR08963E ↗
31. Real-time observations of TRIP-induced ultrahigh strain hardening in a dual-phase CrMnFeCoNi high-entropy alloy [J]10.1038/s41467-020-14641-1 ↗
32. Enhancing the strength-ductility trade-off in a NiCoCr-based medium-entropy alloy with the synergetic effect of ultrafine precipitates, stacking faults, dislocation locks and twins [J]10.1016/j.scriptamat.2021.114497 ↗
33. Fatigue performance of superelastic NiTi near stress-induced martensitic transformation [J]10.1016/j.ijfatigue.2016.10.005 ↗
34. Effect of microstructure on fatigue of superelastic NiTi wires [J]
35. Tyc O, Heller L, Vronka M, Ittner, P. Effect of temperature on fatigue of superelastic NiTi wires [J]. International Journal of Fatigue, 2020, 134(5): 105470-105470. 10.1016/j.ijfatigue.2020.105470.10.1016/j.ijfatigue.2020.105470 ↗
36. Environmental fatigue of superelastic NiTi wire with two surface finishes [J]10.1016/j.jmbbm.2020.104028 ↗
37. Impurity levels and fatigue lives of pseudoelastic NiTi shape memory alloys [J]10.1016/j.actamat.2013.02.054 ↗