Corrosion behaviors of hybrid ultrasonic phosphating coatings on carbon steel in simulated 150 °C hot-dry-rock fluids

Sun, Xiuxiu; Liu, Mingyan; Song, Junchao; Xu, Yangshuhan

doi:10.1016/j.geothermics.2020.101807

Cited by 7 publications

(4 citation statements)

References 40 publications

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“…Similar positive results were obtained in an earlier work on deposition parameters optimization for ultrasonically assisted zinc phosphate coatings (although with no sol‐gel SiO 2 topcoat) by the same group. [ 186,187 ]…”

Section: Review Of Paint and Coating Systemsmentioning

confidence: 99%

“…Similar positive results were obtained in an earlier work on deposition parameters optimization for ultrasonically assisted zinc phosphate coatings (although with no sol-gel SiO 2 topcoat) by the same group. [186,187] Plated Zn was also tested, applied onto carbon steel, for calcium carbonate scaling mitigation together with other plated systems (Ni, Ni-P, Ni-W-P, and Cu) and bare metallic and nonmetallic surfaces (PVC, carbon steel, Type 316 stainless steel, and Cu) by Hashimoto et al [147] Results from the scaling tests revealed that the Zn-coated specimen could provide advantages in terms of scale mitigation compared to any of the tested bare surfaces, although the best performance was measured in the Ni-P and Ni-W-P plated coupons.…”

Section: Coatingsmentioning

confidence: 99%

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Research and Development on Coatings and Paints for Geothermal Environments: A Review

Fanicchia,

Karlsdottir

2023

Adv Materials Technologies

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Geothermal power plants are complex systems, where the interplay between different metallic components transforms the enthalpy of hot brine in the form of electricity or usable heated water. The naturally occurring variety in brine chemistry, linked to the presence of specific key species, and its thermo‐physical properties, leads to the development of different power plant configurations. Key species and power plant configuration in turn determine the extent of damage experienced by each component in the power plant: erosion, corrosion, and/or scaling, often acting combined. Paints and coatings, compared to changing the component alloy, have represented a preferred solution to mitigate these issues due to advantages in terms of costs and repairability. This is reflected in the large number of publications on research and development in this area within the past ≈50 years, with even an increasing trend in the past 10–20 years, indicating the strong interest to develop this clean and sustainable energy source. Therefore, in this work, the first of its kind after 1980, an in‐depth review of all published work on research performed on paints and coatings for geothermal applications, subdivided by the material system, is provided.

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Section: Review Of Paint and Coating Systemsmentioning

confidence: 99%

Section: Coatingsmentioning

confidence: 99%

Research and Development on Coatings and Paints for Geothermal Environments: A Review

Fanicchia,

Karlsdottir

2023

Adv Materials Technologies

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“…Traditional pretreatment techniques include chromate passivation [7,8] and inorganic phosphate conversion [9][10][11]. Although these two films exhibit excellent antioxidant and anticorrosive properties, they can cause harm to the environment and human health [12][13][14]. Hence, it is imperative to produce green passivation technology that demonstrates superior efficacy compared to traditional commercial phosphating methods.…”

Section: Introductionmentioning

confidence: 99%

The Formation of Phytic Acid–Silane Films on Cold-Rolled Steel and Corrosion Resistance

Duan,

Fan,

Shu

et al. 2024

Metals

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In this work, phytic acid (PA) and 3-mercaptopropyltrimethoxysilane (MPTS) underwent a condensation process to produce a phytic acid–silane (abbreviated PAS) passivation solution. Additionally, it was applied to the surface of cold-rolled steel to create a composite phytic acid–silane film. The functional groups of the passivation solution were analyzed by Fourier transform infrared spectroscopy (FT-IR). The composite film was evaluated using an electrochemical workstation, scanning electron microscope (SEM), energy dispersive spectrometer (EDS), X-ray photoelectron spectroscopy (XPS) and pull-off test. These techniques allowed for the characterization of the film’s micromorphology, oxidation, chemical composition and adhesion strength. The results show that the PAS composite film provides higher protection efficiency compared to cold-rolled steel substrates, low phosphorus passivation films, single phytate passivation films and commercial phosphate films. This composite film also has a higher adhesion strength, which is beneficial for subsequent coating, and a possible corrosion resistance mechanism was proposed as well. The PAS layer successfully prevents the penetration of corrosive media into the cold-rolled steel surface utilizing P–O–Fe bonds, thus improving the corrosion barrier effect of the substrate.

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“…Ultrasonic treatment is reported to tailor the microstructure of the solution-metal interface with the spread of ultrasound wave through liquid media, which brings about physical, mechanical changes of coatings [19,20]. Studies show that ultrasonic in the phosphating process produced high corrosion resistance coating with fewer pores [21]. Yang et al [22] investigated the effect of ultrasonic on the microstructure of manganese phosphating coating and found that ultrasonic induced a uniform fine-grained coating with low porosity.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Treatment Induced Fluoride Conversion Coating without Pores for High Corrosion Resistance of Mg Alloy

Sheng¹,

Yi²,

Zhu³

et al. 2020

Coatings

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Fluoride conversion (MgF2) coating with facile preparation and good adhesion is promising to protect Mg alloy, but defects of pores in the coating lead to limited corrosion resistance. In this study, a compact and dense MgF2 coating was prepared by the combination of fluoride treatment and ultrasonic treatment. The ultrasonically treated MgF2 coating showed a compact and dense structure without pores at the frequency of 28 kHz. The chemical compositions of the coating were mainly composed of F and Mg elements. The corrosion potential of the ultrasonically treated Mg alloy shifted towards the noble direction in the electrochemical tests. The corrosion current density decreased due to the protectiveness of MgF2 coating without defects of pores or cracks. During immersion tests for 24 h, the ultrasonically treated Mg alloy exhibited the lowest H2 evolution (0.32 mL/cm2) and pH value (7.3), which confirmed the enhanced anti-corrosion ability of MgF2 coating. Hence, the ultrasonically treated fluoride coating had great potentials for their use in anti-corrosion applications of Mg alloy.

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Corrosion behaviors of hybrid ultrasonic phosphating coatings on carbon steel in simulated 150 °C hot-dry-rock fluids

Cited by 7 publications

References 40 publications

Research and Development on Coatings and Paints for Geothermal Environments: A Review

Research and Development on Coatings and Paints for Geothermal Environments: A Review

The Formation of Phytic Acid–Silane Films on Cold-Rolled Steel and Corrosion Resistance

Ultrasonic Treatment Induced Fluoride Conversion Coating without Pores for High Corrosion Resistance of Mg Alloy

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