Preparation of porous TiNi intermetallic compound and the corrosion behavior in NaCl solution
Source abstract
Abstract
Porous TiNi intermetallic compounds have a promising future as biomaterials, with some challenges for their corrosion resistance. In this work, TiNi intermetallic compound was prepared by reactive synthesis of elemental powders. The evolution of the microstructure and phase composition of TiNi at different temperatures was studied. And the electrochemical corrosion behavior of TiNi intermetallic compound in NaCl solution was investigated by electrochemical tests. The results show the formation of a core-shell structure during the sintering process, where Ni is the core and Ti 2Ni, TiNi and TiNi 3 are the shells. With uniform diffusion, a large pore replaces the Ni core due to the Kirkendall effect. TiNi intermetallic compound has a well-developed open pore structure with an open pore ratio of 50.98%. TiNi intermetallic compound exhibits better corrosion resistance compared to Ni and Ti, which can be attributed to the generation of passivation film on the surface.
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Research context
OpenAlex topics: Hydrogen Storage and Materials · Shape Memory Alloy Transformations · Nanoporous metals and alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. Manufacturing and processing of NiTi implants: a review10.1016/j.pmatsci.2011.11.001 ↗
2. High temperature shape memory alloys10.1179/095066010X12646898728363 ↗
3. Thermomechanical cyclic response of an ultrafine-grained NiTi shape memory alloy10.1016/j.actamat.2008.04.001 ↗
4. Effects of grain size on the rate-dependent thermomechanical responses of nanostructured superelastic NiTi10.1016/j.actamat.2014.05.007 ↗
5. Exploiting ultra-large linear elasticity over a wide temperature range in nanocrystalline NiTi alloy10.1016/j.jmst.2020.01.073 ↗
6. Effect of low‐temperature phase changes on the mechanical properties of alloys near composition TiNi10.1063/1.1729603 ↗
7. Study on corrosion behavior of the selective laser melted NiTi alloy with superior tensile property and shape memory effect10.1016/j.corsci.2020.108891 ↗
8. Physical metallurgy of Ti–Ni-based shape memory alloys10.1016/j.pmatsci.2004.10.001 ↗
9. Porous biocompatible implants and tissue scaffolds synthesized by selective laser sintering from Ti and NiTi10.1039/b715313a ↗
10. Three dimensional printing of stiffness-tuned, nitinol skeletal fixation hardware with an example of mandibular segmental defect repair10.1016/j.procir.2015.07.027 ↗
11. Stability, structure, and suppression of the martensitic transition temperature by B19′ compound twins in NiTi: ab initio and classical simulations10.1016/j.actamat.2018.05.016 ↗
12. A review of selective laser melted NiTi shape memory alloy10.3390/ma11040519 ↗
13. Microstructure and properties of Cu-TiNi composites prepared by vacuum hot pressing10.1016/j.jallcom.2021.162729 ↗
14. On the transformation behaviour of NiTi particulate reinforced AA2124 composites10.1016/j.jallcom.2008.11.002 ↗
15. Processing of porous TiNi alloys using magnesium as space holder10.1016/j.jallcom.2008.11.141 ↗
16. Mechanical properties and shape memory of porous nitinol10.1016/1044-5803(94)90087-6 ↗
17. Porous NiTi alloys produced by press-and-sinter from Ni/Ti and Ni/TiH2 mixtures10.1016/j.msea.2013.05.082 ↗
18. Synthesis of NiTi microtubes via the Kirkendall effect during interdiffusion of Ti-coated Ni wires10.1016/j.intermet.2017.09.010 ↗
19. Diffusion in the titanium-nickel system: II. Calculations of chemical and intrinsic diffusion coefficients10.1007/BF02644147 ↗
20. Quantitative analysis of diffusion kinetics of intermetallic formation in Ni–Ti system
21. Okamoto · 1990 · vol. 12
22. 3D microstructure and anti-oxidation behavior of porous CoAl intermetallic fabricated by rapid thermal explosion10.1016/j.corsci.2022.110715 ↗
23. Effect of sulphide concentration on corrosion behaviors of HVOF-sprayed WC-Cr3C2-Ni and WC-Ni coatings10.1016/j.ijrmhm.2023.106104 ↗
24. In-situ phase transformation and corrosion behavior of TiNi via LPBF10.1016/j.corsci.2022.110348 ↗
25. XPS study on the surface films of a newly designed Ni-free Ti-based bulk metallic glass10.1016/j.actamat.2006.10.054 ↗
26. 3D nanoporous Ni@ NiO/metallic glass sandwich electrodes without corrosion cracks for flexible supercapacitor application10.1016/j.apsusc.2021.149043 ↗