In Vitro Corrosion Anisotropy Assessment of Ti6Al4V Bimodal Microstructure due to Crystallographic Texture

Amirnejad, Mohabbat; Rajabi, Mohammad; Jamaati, Roohollah

doi:10.1007/s11661-021-06278-6

Cited by 4 publications

(3 citation statements)

References 47 publications

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“…It has been shown that the corrosion resistance of Ti6Al4V alloy is mainly dependent to the surface natural oxide layer. 27 The presence of a thin oxide layer on S(X) surface, as previously shown in substrate characterization section, will provide lower corrosion resistance on this surface, so that the presence of hydroxyapatite coating on this surface will significantly reduce the corrosion rate of the coated sample compared to bare substrate.…”

Section: Ohmentioning

confidence: 81%

“…It can be concluded that the highest and lowest thickness of the naturally formed oxide layer belongs to the S(Y) and S(X) surfaces, respectively, as revealed in our previous study. 27 Coatings morphology.-Figure 2 depicts the SEM micrographs showing the morphology of the coatings deposited on X, Y, and Z surfaces at 2.5 V and a deposition time of 60 min. Two different morphologies of hydroxyapatite crystals, including plate-like and needle-like crystals, are observed in the microstructure of the HAp coatings created on different surfaces.…”

Section: Resultsmentioning

confidence: 99%

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Electrodeposition of Hydroxyapatite Coating on Ti6Al4V Alloy: Mechanistic Investigation of the Substrate Crystallographic Texture Effect

Amirnejad

Rajabi²,

Jamaati³

2022

J. Electrochem. Soc.

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Hydroxyapatite (HAp) coating electrodeposition was performed on three orthogonal surfaces of duplex-annealed Ti6Al4V alloy. This approach made it possible to investigate the effect of substrate crystallographic texture on hydroxyapatite coating properties exclusively from its microstructure. The coating characteristics were evaluated by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, laser surface profilometry, and potentiodynamic polarization test. The results showed that the presence of ("10" "1" ̅"0" ) low-surface energy planes leads to the smaller HAp deposits of 39±4 µm due to the higher nucleation rate during electrodeposition. The highest surface roughness value of 75±1 µm, as well as the lowest degree of crystallinity, equal to 23.5%, belonged to the surface in which ("0001" ) and (112 ̅0) planes of high-surface energy placed in parallel to the surface. The electrochemical test results showed that the protective efficiency of HAp coatings was the highest for the surface with ("10" "1" ̅"0" ) planes in parallel. This was attributed to the increased thickness and the low porosity content of the coating.

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Section: Ohmentioning

confidence: 81%

Section: Resultsmentioning

confidence: 99%

Electrodeposition of Hydroxyapatite Coating on Ti6Al4V Alloy: Mechanistic Investigation of the Substrate Crystallographic Texture Effect

Amirnejad

Rajabi²,

Jamaati³

2022

J. Electrochem. Soc.

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“…Texture control has great technological significance in the metal industry (Sowerby & Johnson, 1975). Plastic deformations or annealing usually induce strong anisotropies in polycrystalline metals (Cahn, 1978), leading to directional dependencies of mechanical properties (Arminjon & Bacroix, 1991), magnetic properties (Chikazumi et al, 1957;Salih et al, 2014) and corrosion resistance (Amirnejad et al, 2021;Khan et al, 2021). The texture formation in wrought alloys can be very well controlled, for example, by thermomechanical treatments, in the case of aluminium (Engler et al, 2020) or steel sheet products for deep drawing (Davies et al, 1974).…”

Section: Introductionmentioning

confidence: 99%

Non-destructive texture characterization by a robot-arm-driven X-ray diffractometer

Sepsi,

Benke,

Mertinger

2024

J Appl Cryst

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The most common methods for texture characterization require cutting a coupon to be inserted into an X-ray texture goniometer or an electron microscope and are, therefore, destructive. However, there are many cases where texture characterization needs to be performed in a non-destructive way, where the measurement can be made without damaging the object. Typical examples are archaeological artefacts or very expensive materials. Here we demonstrate the application of an X-ray diffractometer mounted on a robotic arm designed for residual stress scanning for texture characterization, enabling the determination of the orientation distribution function for different locations on samples with complex geometries. The texture characterization method was benchmarked on a cold-rolled aluminium sheet.

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In Vitro and In Vivo Degradation of the New Dissolvable Surgical Wire, Produced from Zn Based Low Alloy by Hot and Cold Drawing

Milenin,

Kustra,

Lelek-Borkowska

et al. 2024

Metall Mater Trans A

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The biocorrosion of a new surgical wire (0.6, 0.8, and 1.0 mm in diameter) obtained from a ZnMg0.004 alloy by hot and cold drawing was characterized using in vitro tests in a bovine animal serum solution and in vivo tests – through placement in the muscles of a rabbit and a in cat's broken paw. Corrosion gravimetric tests were carried out in a corrosive environment refreshed every 3 days and also one which remained unchanged throughout the test period. Electrochemical tests were performed in the same solution of serum as in gravimetric tests. Depending on the initial diameter, complete dissolution of the wire was observed after 36-78 days of immersion in periodically changed serum solution. None of the wires completely dissolved over 120 days in the unreplaced serum solution. The corrosion rate values determined in electrochemical and gravimetric tests were similar. After 90 days of in vivo tests, both in the body of the rabbit and the cat, the degradation of the wire was similar to in vitro tests in the unreplaced serum solution. No harmful effects were observed in the animals.

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In Vitro Corrosion Anisotropy Assessment of Ti6Al4V Bimodal Microstructure due to Crystallographic Texture

Cited by 4 publications

References 47 publications

Electrodeposition of Hydroxyapatite Coating on Ti6Al4V Alloy: Mechanistic Investigation of the Substrate Crystallographic Texture Effect

Electrodeposition of Hydroxyapatite Coating on Ti6Al4V Alloy: Mechanistic Investigation of the Substrate Crystallographic Texture Effect

Non-destructive texture characterization by a robot-arm-driven X-ray diffractometer

In Vitro and In Vivo Degradation of the New Dissolvable Surgical Wire, Produced from Zn Based Low Alloy by Hot and Cold Drawing

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