Effect of Iron Content on Corrosion Properties of Pure Titanium as Grain Refiner

Seo, Bosung; Im, Hyeon-Tae; Park, Kibeom; Park, Kwangsuk; Park, Hyung-Ki

doi:10.3390/ma14237193

Cited by 4 publications

(1 citation statement)

References 29 publications

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“…shows the X-ray patterns for coated specimen titanized at 900 °C for 5hr (48%FeTi) The titanizing-coated low carbon steel samples shows TiFe phase which is known to be stable thermodynamically, the peak corresponding to TiFe phase appeared in the XRD results. It was reported that isolated TixFe particles were detected by SIMS imaging for the Ti-0.078 wt% Fe system, but they might be too tiny to be detected by the XRD method [12][13]. Other phases such as Ti O 2 and Ti 0.86 were detected.…”

Section: Figure (1): X-ray Diffraction Pattern For Some Coated Specimensmentioning

confidence: 98%

Improvement of Corrosion Resistance of Low Carbon Steels by Surface Modification

Abobakr,

Bastweesy,

Hassan

2024

Preprint

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This research aims to investigate the corrosion resistance of surface layers of pack chromizing, titanizing, and chromtitanize low-carbon steel in a chloride-containing environment at room temperature. The parameters affecting the diffused coat, such as the coating time, coating temperature, and the effect of pack compositions, were also studied. Tests are performed to measure wet corrosion behavior using the Potentiodynamic polarization corrosion test. The microstructures and elemental analysis using a scanning electron microscope (SEM) attached to an EDX unit were obtained. Phase analysis is determined using EDX. X-ray diffraction examination indicated that in the chromizing, titanizing, and chromotitanizing processes at different coating times and temperatures of 900°C, 1000°C, and 1100°C. The outer layer is composed basically of Cr,Ti, Cr1.9Ti, FeTi, Al2O3, Cr2O3, TiO2, Cr1.36Fe0.52, (Ti0.86)3.58, and Ti0.86 phases in addition to the elemental iron. The thickness of the coating increases with the increase of the deposition time. The coating is composed of a thick outer layer and a thin inner layer. The formation of the coating depends on the inward diffusion of Cr and Ti atoms and the outward diffusion of Fe atoms. The linear polarization examination showed that the corrosion resistance of steel is enhanced by coating it in a 3.5% NaCl aqueous solution at room temperature. Potentiodynamic polarization examination showed a lower corrosion rate of the coated specimens than the uncoated ones, and the coated specimens exhibit nobler behavior than the uncoated ones in a 3.5% NaCl aqueous solution at room temperature. The corrosion resistance of the coating is proportional to the deposition time and temperature.

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Section: Figure (1): X-ray Diffraction Pattern For Some Coated Specimensmentioning

confidence: 98%

Improvement of Corrosion Resistance of Low Carbon Steels by Surface Modification

Abobakr,

Bastweesy,

Hassan

2024

Preprint

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show abstract

Electrochemical corrosion and impedance studies of Ti-30Zr-xNb (x = 7, 10, 13 at.%) alloy in simulated downhole environment

Pan

Gong

et al. 2023

J Solid State Electrochem

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Enhancement in Corrosion Resistance of Low-Carbon Steel via Surface Modification

Matar,

Yousef,

Bastaweesy

et al. 2024

Coatings

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This research investigated the corrosion resistance of surface layers on low-carbon steel exposed to a chloride environment at room temperature. This study systematically evaluated the effects of varying pack compositions, coating temperatures, and application durations on the characteristics of the deposited coatings. The potentiodynamic polarization corrosion test was employed to assess the wet corrosion behavior of the specimens. Elemental compositions and microstructural features were analyzed using energy-dispersive X-ray spectroscopy (EDX) in conjunction with scanning electron microscopy (SEM), providing insights into phase distribution. The chromizing, titanizing, and chromotitanizing treatments were conducted at temperatures of 900 °C, 1000 °C, and 1100 °C, respectively, with varying coating times. X-ray diffraction analysis revealed a complex arrangement of elements and compounds within the coatings, including Cr, Ti, Cr1.9Ti, FeTi, Al2O3, Cr2O3, TiO2, Cr1.36Fe0.52, and (Ti0.86)3.58. The study found that as the deposition duration increased, the coating thickness increased, comprising a thin inner layer and a substantially thicker outer layer. This layered structure resulted from the outward diffusion of Fe atoms and the inward diffusion of Cr and Ti atoms. Electrochemical analysis in a 3.5% NaCl aqueous solution indicated a marked enhancement in the corrosion resistance of the coated specimens compared to their uncoated counterparts. The potentiodynamic polarization tests confirmed that the protective coatings significantly reduced the corrosion rate, with performance influenced by both the temperature and duration of the deposition process. These findings highlighted the potential of tailored coating techniques to improve the durability and performance of low-carbon steel in corrosive environments.

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Effect of Iron Content on Corrosion Properties of Pure Titanium as Grain Refiner

Cited by 4 publications

References 29 publications

Improvement of Corrosion Resistance of Low Carbon Steels by Surface Modification

Improvement of Corrosion Resistance of Low Carbon Steels by Surface Modification

Electrochemical corrosion and impedance studies of Ti-30Zr-xNb (x = 7, 10, 13 at.%) alloy in simulated downhole environment

Enhancement in Corrosion Resistance of Low-Carbon Steel via Surface Modification

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