An in situ phosphatizing coating on 2024 T3 aluminum coupons

Whitten, Mary; Lin, Chhiu-Tsu

doi:10.1016/s0300-9440(00)00101-6

Cited by 26 publications

(15 citation statements)

References 11 publications

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“…Phosphating is one of the most used surface treatments for metallic surfaces [1][2][3][4][5][6][7][8][9][10]. It is known as a conversion coating that leads to the formation of insoluble phosphate salts, mainly zinc phosphate [11,12] and is employed in many industries either for corrosion protection, surface preparation for painting, or for decoration [11,12] in a variety of metallic materials.…”

Section: Introductionmentioning

confidence: 99%

“…It is known as a conversion coating that leads to the formation of insoluble phosphate salts, mainly zinc phosphate [11,12] and is employed in many industries either for corrosion protection, surface preparation for painting, or for decoration [11,12] in a variety of metallic materials. This type of coating can be applied on steels [1][2][3][4][5]7], galvanized steel [4,10,13], iron [6], magnesium [8,14,15], aluminium [9,16] and zinc [17].…”

Section: Introductionmentioning

confidence: 99%

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The effects of niobium and nickel on the corrosion resistance of the zinc phosphate layers

Banczek

Rodrigues

Costa

2008

Surface and Coatings Technology

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effects of niobium and nickel on the corrosion resistance of the zinc phosphate layers

Banczek

Rodrigues

Costa

2008

Surface and Coatings Technology

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“…Phosphating is one of the important chemical conversion treatments for pre-treatment on metal surfaces and industrial applications. [1][2][3][4][5][6][7][8][9][10] Thus, the phosphate methods have been developed through the invention of new industries. [11][12][13] These coatings are employed in several industries to increase corrosion resistance, surface preparation for painting and decorative applications.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Phosphate Conversion Coatings: A Review

Darband

Aliofkhazraei

2017

Surf. Rev. Lett.

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Deposition of phosphate conversion coating using electrochemical methods have many advantages such as low phosphating temperature, low energy cost and good properties of fabricated coating and in recent times increasingly employed for deposition of phosphate coating. Deposition mechanism of coating which is fabricated using electrochemical methods is different from those obtained by conventional chemical methods, consequently, the properties of electrophosphate coating is also different from those conventional phosphate coating. In this paper, recent understanding of deposition mechanism of electrophosphate coating is reviewed. The microstructure, composition, thickness and corrosion behavior of electrophosphate coatings and effect of different factors of those properties were also reviewed.

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“…Phosphating is one of the most used surface treatments for metals (Banczek et al, 2006;Jegannathan et al, 2006aJegannathan et al, , 2006bWang et al, 2006;Rout et al, 2006;Jegannathan et al, 2006aJegannathan et al, , 2006bRebeyrat et al, 2002;Olesen et al, 1998;Niu et al, 2006;Whitten et al, 2000;Bustamente et al, 2003). It is known as a conversion coating that leads to the formation of insoluble phosphate salts and is used in many industries for corrosion protection, surface preparation or for decoration (Lorin, 1974).…”

Section: Introductionmentioning

confidence: 99%

Corrosion characterization of phosphated carbon steel treated with benzotriazole

Spagnol

Banczek

Costa

et al. 2015

Anti-Corrosion Methods and Materials

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Purpose – The purpose of the paper is to show the corrosion effect of benzotriazole in comparison with iron phosphate (PFe) coating as a sealer for the PFe layer in carbon steel paint pre-treatment and to show its ecological advantages as a more environment-friendly inhibiting compound than PFe. Design/methodology/approach – Samples of carbon steel (SAE 1010) were phosphated in two baths, one containing iron PFe and PFe and BTAH (PFe + BTAH). Anodic potentiostatic polarization curves and electrochemical impedance spectroscopy were used to evaluate the corrosion resistance of phosphated carbon steel in 0.1 molL−1 H2SO4, 0.5 molL−1 NaCl and 0.1 molL−1 NaOH. The phosphate layers obtained were analyzed by infrared spectroscopy. Surface observation by scanning electron microscopy (SEM) showed that the PFe and PFe + BTAH layers are deposited as crystals with granular morphology. The electrochemical results showed that the PFe + BTAH coating was more effective in corrosion protection of the carbon steel. Findings – This paper presents the application of benzotriazole as post-treatment of PFe-coated carbon steel. The results show that benzotriazole improves the phosphate layer properties. The SEM micrographs showed that the layer formed in PFe and PFe + BTAH baths consists of grain-like crystals, and infrared results revealed the BTAH presence in PFe phosphate. The corrosion resistance results showed higher efficiency associated to the PFe + BTAH phosphate layer relative to that of PFe. From the present study, results can be concluded that BTAH can be used as a post-treatment for PFe phosphate coating. Originality/value – This paper deals with the corrosion resistance and surface carbon steel characterization of a new sealer for PFe coating, which has been prepared for this study and was never tested previously. These are candidate materials for substitution of chromium sealer. The BTAH sealer presents environmental and corrosion resistance advantages when compared with the post-treatment based on chrome. Although BTAH improves PFe layers’ properties, it is the worst phosphate coating. This manuscript has never been previously submitted and deals with original results.

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An in situ phosphatizing coating on 2024 T3 aluminum coupons

Cited by 26 publications

References 11 publications

The effects of niobium and nickel on the corrosion resistance of the zinc phosphate layers

The effects of niobium and nickel on the corrosion resistance of the zinc phosphate layers

Electrochemical Phosphate Conversion Coatings: A Review

Corrosion characterization of phosphated carbon steel treated with benzotriazole

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