Sealing Treatment of Aluminum Coating on S235 Steel with Thermal Diffusion of Zinc

Wang, Yong; Zhang, Timing; Wei-min, Zhao; Tang, Xiuyan

doi:10.1007/s11666-015-0277-4

Cited by 15 publications

(5 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other inorganic sealing methods that have been investigated to enhance the behaviour of thermally-sprayed coatings have involved the thermal diffusion of Zn [55], the use of phosphate-containing salts that chemically react with Al [56], calcium nitrate [57], hydrothermal treatment in boiling deionised (DI) water [58], and the sol-gel method [59]. The use of glass powders to seal porosity in an arc-sprayed aluminium coating was also investigated [60].…”

Section: Effect Of Sealingmentioning

confidence: 99%

Sacrificial Thermally Sprayed Aluminium Coatings for Marine Environments: A Review

2020

View full text Add to dashboard Cite

One of the corrosion mitigation methods that is used for the protection of steel operating in seawater environments involves the application of sacrificial metallic coatings (such as aluminium, zinc, and their alloys). This paper reviews current knowledge about thermally-sprayed (TS) and cold-sprayed (CS) Al coatings for the corrosion protection of steel. It also summarises the key findings of the substantial amount of work that has been devoted to understanding mechanisms and the parameters that control the performance of TS Al coatings, such as the spraying method and its parameters like coating thickness and the application of sealer. The paper includes suggestions for areas of further research that could lead to the development of more resilient and longer-lasting coatings, based on the results from both laboratory and field tests that have been published in the literature. It also highlights the need for conducting simulated laboratory tests at conditions of intended service and the importance of long-term testing.

show abstract

Section: Effect Of Sealingmentioning

confidence: 99%

Sacrificial Thermally Sprayed Aluminium Coatings for Marine Environments: A Review

2020

View full text Add to dashboard Cite

show abstract

“…Zinc-based and aluminium coatings are applied through sherardising, plating, electroplating, hot-dip galvanising (batch and strip), and thermal spraying (flame, cold gas, and arc) [13,[17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

“…Thermal-sprayed aluminium coatings are applied to high-temperature materials and equipment made of steel. Aluminium-coated cast-iron components are often exposed to potentially corrosive environments in water and the atmosphere, including combustion gases at high temperatures (900 • C) [24,25,28,29].…”

Section: Introductionmentioning

confidence: 99%

Changes in Corrosion Behaviour of Zinc and Aluminium Coatings with Increasing Seawater Acidification

Senderowski,

Rejmer,

Vigilianska

et al. 2024

Materials

View full text Add to dashboard Cite

The increase in greenhouse gas emissions has led to seawater acidification, increasing the corrosion rate of metal structures in marine applications. This paper indicates that the spraying of four types of coatings, namely Zn, Al, Zn-Al, and Al-Mg, using the arc-spraying technique on steel substrate S235JR, creates effective protective coatings that interact differently with various pH solutions exposed to varying levels of seawater acidification. The study analyses the structural properties of the coating materials using SEM and XRD techniques. Electrochemical parameters are evaluated in solutions with different pH and salinity levels. The results demonstrate that alloy metallic coatings provide excellent resistance to corrosion in low-pH solutions.

show abstract

“…There are many methods of applying zinc-based coatings. These include sherardizing, plating, electroplating, hot-dip galvanizing (batch and strip), and thermal spraying (flame, cold gas, and arc) [11][12][13][14][15][16][17]. For large steel structures, the coating processes, such as batch galvanizing and thermal spraying are the only ones applicable.…”

Section: Introductionmentioning

confidence: 99%

“…Thermal sprayed aluminum coatings are applied to structural components and equipment made of steel and cast iron [20]. Aluminum-coated components are often exposed to potentially corrosive environments in water and the atmosphere, including combustion gases at high temperatures (900 • C) [16,17,20]. Due to the economics of application, aluminum and zinc coatings appear to have the potential for use in water transfer heating systems.…”

Section: Introductionmentioning

confidence: 99%

Effect of Low Chloride and Sulfate Concentrations on Corrosion Behavior of Aluminum and Zinc Arc Thermal Sprayed Coatings

2022

View full text Add to dashboard Cite

The aim of this study was to determine the suitability of arc sprayed zinc and aluminum coatings as materials for protective coatings of different heating systems. The most aggressive chemical agents occurring in heating water are chloride and sulfate anions. Both ions are responsible for the corrosion of metals due to their high electronegativity and standard electrochemical potential. Water in heating systems should not contain more than 150 mg/L anions, including no more than 50 mg/L of chlorides and 100 mg/L of sulfates. To determine the corrosion resistance of three types of zinc and aluminum coatings, open circuit potential and linear polarization resistance (LPR) tests were conducted in eight alkaline solutions with different sulfate and chloride contents. The SEM/EDS structural properties of sprayed coatings at specific arc process parameters were investigated. Zinc coatings exhibit the most stable corrosion potentials in varying environments but have higher corrosion current density. Aluminum coatings exhibit much higher potential values in a chloride environment than in any other. A chloride environment also causes the lowest corrosion rates for aluminum-coated samples. A small addition of aluminum to the zinc coating (15 wt.%) does not appear to affect the stability of the corrosion potential but does result in a reduction in corrosion rates in chloride solutions.

show abstract

Sealing Treatment of Aluminum Coating on S235 Steel with Thermal Diffusion of Zinc

Cited by 15 publications

References 22 publications

Sacrificial Thermally Sprayed Aluminium Coatings for Marine Environments: A Review

Sacrificial Thermally Sprayed Aluminium Coatings for Marine Environments: A Review

Changes in Corrosion Behaviour of Zinc and Aluminium Coatings with Increasing Seawater Acidification

Effect of Low Chloride and Sulfate Concentrations on Corrosion Behavior of Aluminum and Zinc Arc Thermal Sprayed Coatings

Contact Info

Product

Resources

About