Corrosion behaviour of Ti‐Al‐xV‐yFe experimental alloys in 3.5 wt% NaCl and 3.5 M H2SO4

Bodunrin, Michael Oluwatosin; Chown, Lesley H.; Merwe, J.W. van der; Alaneme, Kenneth Kanayo

doi:10.1002/maco.201709709

Cited by 17 publications

(23 citation statements)

References 44 publications

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“…[28] In addition to this, the constituents, severity of the electrolyte, its temperature, the complexity of the ions in solution, and the immersion time have all been reported to influence the corrosion behavior of metallic alloys. [4] The corrosion performance of the inexpensive experimental titanium alloys was therefore evaluated in simulated body fluids to understand the effect of their compositions and the electrolyte's ion complexity on their resistance to corrosion. Similar corrosion behavior trends were observed for these alloys in 0.9 wt.% sodium chloride solution and HBSS.…”

Section: Discussionmentioning

confidence: 99%

Enhanced corrosion performance of low‐cost titanium alloys in a simulated diabetic environment

Rundora,

Van der Merwe,

Klenam

et al. 2023

Materials & Corrosion

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Due to their excellent biocompatibility, titanium alloys are the preferred materials for manufacturing bioimplants. Low‐cost titanium alloys have been developed as cheaper and less toxic alternatives for Ti–6Al–4V in the biomedical industry, but their suitability for diabetes patients is yet to be evaluated. With the growing number of diabetes patients globally, this research investigated the corrosion performance of low‐cost Ti–3Fe, Ti–4.5Al–1V–3Fe, and Ti–6Al–1V–3Fe alloys in 0.9 wt.% sodium chloride solution and glucose‐containing Hanks balanced salt solution (HBSS) compared with Ti–6Al–4V. Glucose was added to simulate the body fluids of patients with prediabetic and diabetic conditions. Open circuit potential and potentiodynamic polarization tests were performed. The results reveal that Ti–4.5Al–1V–3Fe and Ti–6Al–1V–3Fe alloys show superior corrosion resistance compared with the other alloys in the glucose‐containing solutions, as they had the lowest corrosion rate and higher corrosion potential. Consequently, these alloys hold promise as effective implants, particularly for people living with diabetes.

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Section: Discussionmentioning

confidence: 99%

Enhanced corrosion performance of low‐cost titanium alloys in a simulated diabetic environment

Rundora,

Van der Merwe,

Klenam

et al. 2023

Materials & Corrosion

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“…The presence of Al 2 O 3 in the oxide layer formed on the surface can sustain the dissolution of the protective film formed on alloys in concentrated reducing acids like sulfuric acid. [40,43,44] The aim of the proposed postprocessing was to homogenize the microstructure of the as-printed Ti-AlN and transform the remaining undissolved AlN particles into the bulk alloy to form other Al-rich binary or ternary phases. The microstructure transformation and the formation of Al-containing phases changed the corrosion mechanism.…”

Section: Discussionmentioning

confidence: 99%

“…This phenomenon was due to reactions that control the passive behavior of the materials, including TiN and TiAlN, at ambient temperature. [ 25,40 ] TiN is inherently corrosion‐resistant, which ensures suitable corrosion behavior in acidic media. [ 25,41 ] In an acidic solution, the surface of the printed alloys was passivated and TiO 2 was formed.…”

Section: Discussionmentioning

confidence: 99%

Microstructure and corrosion resistance characteristics of Ti–AlN composite produced by selective laser melting

Chlewicka

Dobkowska

Sitek

et al. 2021

Materials & Corrosion

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The aim of this study is to produce Ti–AlN via selective laser melting. The results show that the microstructure of the produced alloy is not uniform. The X‐ray diffraction measurements show that the Ti–AlN composite is composed of a Ti matrix, AlN compounds, as well as (TiN)0.88, Al6Ti19, and Al1.1Ti0.9 intermetallics. The as‐printed Ti–AlN is also composed of dendrites of two typical titanium nitrides (TiN and Ti2N) and titanium aluminum nitride (Ti2AlN). Subsequent quenching and annealing slightly change the phase composition of the alloy and is the main reason for their different corrosion behaviors in acidic and chloride‐containing solutions. The results of this study show that the formation of Al‐rich ternary phases improved the corrosion resistance of the three‐dimensional‐printed Ti–AlN after quenching.

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“…The SiCp presence in the aluminum alloy gives the superior corrosion resistance in NaCl solution compared to H2So4. Furthermore, the corrosion resistance was significantly enhanced with thermomechanical treatment of the MMCs in H2So4 solution 39) . In current study, the interfacing of matrix and reinforcements plays the vital role in fabrication of AlMMNCs samples.…”

Section: Morphology Of Corroded Almmncs Surfacementioning

confidence: 97%

Morphology and Corrosion Behavior of Stir-Cast Al6061-CeO_2 Nanocomposite Immersed in NaCl and H_2So_4 Solutions

Kumar¹,

Singh²,

Angra³

2023

Evergreen

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Durability in terms of life is intended as a significant factor in developing advanced materials. The enrichment in corrosion resistance of the produced progressive material can be the solution. In the current study, a nanocomposite of aluminum 6061 and cerium oxide was prepared with a stir casting route reinforced in the range of 1-3 wt.%. The corrosion and microstructural behavior were observed under parametric conditions. The exposure time (36-180 hours), temperatures (room temperature, 45 ºC, and 75 ºC), and 2.5 wt.% of Sodium chloride (NaCl) and Sulphuric acid (H2So4) solutions were chosen as parameters for examining the corrosion rate using the immersion test method. The lower corrosion resistance was noticed in aluminum metal matrix nanocomposites (AlMMNCs) reinforced with 3 wt.% of CeO2. The SEM analysis concluded voids, holes, clustering of particles, and debris kind of defects were observed in stir casting of AlMMNCs samples. The Pitting, fretting, and grain boundary corrosions were the primary degradation factors for corrosion behavior as evaluated from microstructural characteristics. The 0.116 has been observed as a significant corrosion rate in mm potential per year after 180 hours as exposure time at 75ºC in 2.5 wt.% NaCl solution.

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Corrosion behaviour of Ti‐Al‐xV‐yFe experimental alloys in 3.5 wt% NaCl and 3.5 M H₂SO₄

Cited by 17 publications

References 44 publications

Enhanced corrosion performance of low‐cost titanium alloys in a simulated diabetic environment

Enhanced corrosion performance of low‐cost titanium alloys in a simulated diabetic environment

Microstructure and corrosion resistance characteristics of Ti–AlN composite produced by selective laser melting

Morphology and Corrosion Behavior of Stir-Cast Al6061-CeO_2 Nanocomposite Immersed in NaCl and H_2So_4 Solutions

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