The influence on immersion time of titanium conversion coatings on electrogalvanized steel

Tsai, Y.-K.; Hou, Kung-Hsu; Bai, Ching-Yuan; Lee, Jeou-Long; Ger, Ming-Der

doi:10.1016/j.tsf.2010.05.042

Cited by 29 publications

(8 citation statements)

References 14 publications

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“…[27][28][29] Chromate conversion films are usually prepared by chemical treatment and have a low thickness. A number of compounds of several transition metals in a high oxidation state have been used for chemical conversion coatings, such as titanium, 38 vanadium, 39 zirconium and niobium, 40 manganese, 41,42 cobalt, 43 molybdenum, 44 tungsten and silicon, 45 cerium, 40,[46][47][48][49] and other rare earth metals. To increase the sustainability of the protective effect, chromate anticorrosive pigments such as CaCrO 4 , SrCrO 4 , or BaCrO 4 should be incorporated into the more extended primer layer.…”

Section: Methods For Combating Corrosion: Short Overviewmentioning

confidence: 99%

Anticorrosion Coatings with Self-Recovering Ability Based on Damage-Triggered Micro- and Nanocontainers

Grigoriev

2015

Intelligent Coatings for Corrosion Control

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Section: Methods For Combating Corrosion: Short Overviewmentioning

confidence: 99%

Anticorrosion Coatings with Self-Recovering Ability Based on Damage-Triggered Micro- and Nanocontainers

Grigoriev

2015

Intelligent Coatings for Corrosion Control

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“…In recent years, in some types of oxide-titanium adhesion coatings have been proposed as a replacement for the adhesive phosphate and chromate layers under PVC [7,[9][10][11][12][13][14][15][16][17]. Among the advantages of the new coatings are their energy saving production technologies, ease of implementation and operation, and the low toxicity of the solutions used.…”

Section: Introductionmentioning

confidence: 99%

On the Mechanism of Formation of Conversion Titanium-Containing Coatings

et al. 2020

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The present work is devoted to the study of the mechanism of the process of formation of adhesive oxide-titanium coatings on steel, zinc, and aluminum surfaces. For the first time, the following hypothesis has been confirmed experimentally, namely, that nickel, being the first metal to be deposited on a steel substrate, creates active centers on which titanium oxides are formed, because the hydrolysis of hexafluorotitanic acid is adsorbed, which then form a continuous film. The data obtained, regarding the dependence of the coating thickness on the linear rate of the solution flow along the treated surface, indirectly confirm that the formation of insoluble titanium oxides occurs because of the alkalization of the solution adjacent to the surface. It has been established that in the presence of hexavalent molybdenum compounds in the solution as oxidizers, molybdenum is included in the coating in the form of oxides. It has been revealed that in the lower layers of the coating, molybdenum is contained in the form of compounds of molybdenum (V) and (VI), while in the upper layers, it is contained only in the form of the compound of molybdenum (VI).

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“…4,5 In recent years, researchers developed a variety of chemical conversion coatings, including Ti, Zr and Mo metal salt conversion coatings. [6][7][8][9][10][11][12] The rare earth conversion coatings for Al alloys have been widely studied. [13][14][15] However, none is as effective as the Cr(VI) conversion coating.…”

Section: Introductionmentioning

confidence: 99%

Corrosion resistance and self-repairing behaviour of Cr(III) contained conversion coating on AA2024-T3

Song

Cai

2016

Corrosion Engineering, Science and Technology

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A Cr(III) contained conversion coating on AA2024-T3 was prepared in solution containing Cr 2 (SO 4 ) 3 and K 2 ZrF 6 . Its composition was analysed using X-ray photoelectron spectroscopy, and its corrosion resistance was characterised by electrochemical measurements and neutral salt spray exposure. To investigate its self-repairing effect, the coupling current between a small uncoated sample and a large coated sample was monitored through an artificial scratch cell. The coating mainly consists of zirconium oxide and chromium oxide and hydroxide; no Cr(VI) species is detected. It improves the corrosion resistance by hindering the anodic process as well as the cathodic process. Meanwhile, it possesses self-repairing effect, which is generated from the release of Cr(III) species from the coating, migration and then deposition on the nearby scratch area.

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The influence on immersion time of titanium conversion coatings on electrogalvanized steel

Cited by 29 publications

References 14 publications

Anticorrosion Coatings with Self-Recovering Ability Based on Damage-Triggered Micro- and Nanocontainers

Anticorrosion Coatings with Self-Recovering Ability Based on Damage-Triggered Micro- and Nanocontainers

On the Mechanism of Formation of Conversion Titanium-Containing Coatings

Corrosion resistance and self-repairing behaviour of Cr(III) contained conversion coating on AA2024-T3

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