Stearic acid coating on magnesium for enhancing corrosion resistance in Hanks' solution

Ng, Wf F.; Wong, M.H.; Cheng, F. T.

doi:10.1016/j.surfcoat.2009.11.024

Cited by 146 publications

(48 citation statements)

References 20 publications

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“…It is very important for Mg application as an orthopedic implant, because SA is the main component of fat. That is why SA is nontoxic and biocompatible [64]. Magnesium is a potential candidate metallic material for degradable implants due to its valuable mechanical properties, non-toxicity, and degradability.…”

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confidence: 99%

Organic corrosion inhibitors: where are we now? A review. Part II. Passivation and the role of chemical structure of carboxylates

Kuznetsov

2016

Int. J. Corros. Scale Inhib.

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This article provides an overview of works (2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016) devoted to the passivation of various metals and the influence of organic carboxylic acids and their salts thereon. The results of corrosion and electrochemical studies, as well studies on the composition and structural features of surface layers on the metals being protected by a variety of physicochemical methods are considered. Protection of metals by organic corrosion inhibitors (CIs) is based mostly on the adsorption of these compounds on a metal surface and subsequent formation of protective layers that minimizes access of corrosive ions to that surface. Adsorption can occur via electrostatic interaction of the CI with the metal substrate (physisorption), or it can involve charge sharing between the surface and CI (chemisorption), or combination of both interaction types can take place. Passivation of metals remains a central problem to be solved by the corrosion science. In the development of nanoindustry methods focused on creating ultrathin layers on metals capable of preventing the corrosion of the metals, an important role is played by surface passivation using CIs. Corrosion inhibitors can form passivating (often polymolecular) layers on metals but with thickness d < 10 nm, making them invisible to an unaided eye and keeping intact the decorative properties of a coated article's surface. This passivation can be done using volatile CIs from the vapor phase or nonvolatile CIs from aqueous solutions. Since metal passivation using conventional corrosion inhibitors of oxidizing type (e.g., nitrites, chromates) is seriously limited in practice due to environmental considerations, requirements for inhibiting formulations keep changing over time.The use of corrosion inhibitors in passivation has played a major role not only in the application of oxidants (chromates, nitrites, etc.) but also in adsorptive, often "oxideless" passivation that we discovered as early as in the mid-1970s [1]. As for corrosion inhibitors

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confidence: 99%

Organic corrosion inhibitors: where are we now? A review. Part II. Passivation and the role of chemical structure of carboxylates

Kuznetsov

2016

Int. J. Corros. Scale Inhib.

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“…In addition, conversion coatings based on stanate [14,15], rare elements [16], and ionic liquids [17], at this point, are not applicable for practical use. Also, a pretreatment including phosphate/phosphate-manganate [18], molten salt [19], and stearic acid [20] were reported. The growing concern for environmental protection has led to setting up more stringent regulations regarding the use of chemicals that may have a harmful effect on the environment, which has led to a reduction or complete termination of the use of a number of very effective conversion coatings.…”

Section: Introductionmentioning

confidence: 99%

Effective and Environmentally Friendly Nickel Coating on the Magnesium Alloy

Rončević

Buzuk

Vladislavić

2016

Metals

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Abstract:The low density and good mechanical properties make magnesium and its alloys attractive construction materials in the electronics, automotive, and aerospace industry, together with application in medicine due to their biocompatibility. Magnesium AZ91D alloy is an alloy with a high content of aluminum, whose mechanical properties overshadow the low corrosion resistance caused by the composition of the alloy and the existence of two phases: α magnesium matrix and β magnesium aluminum intermetallic compound. To improve the corrosion resistance, it is necessary to find an effective protection method for the alloy surface. Knowing and predicting electrochemical processes is an essential for the design and optimization of protective coatings on magnesium and its alloys. In this work, the formations of nickel protective coatings on the magnesium AZ91D alloy surface by electrodeposition and chemical deposition, are presented. For this purpose, environmentally friendly electrolytes were used. The corrosion resistance of the protected alloy was determined in chloride medium using appropriate electrochemical techniques. Characterization of the surface was performed with highly sophisticated surface-analytical methods.

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“…The magnesium samples coated with Viton were investigated by several techniques, i.e., thermogravimetery (TG), differential scanning calorimetry (DSC), FT-IR spectroscopy, EDX and scanning electron microscope (SEM). Until today, some reports have been published in the literature on the coating of magnesium powder and its alloys with various materials [46][47][48]. But, to the best our knowledge, there is no report on the coating of magnesium particles with Viton polymer.…”

Section: Page 4 Of 27mentioning

confidence: 99%

Statistical optimization of microencapsulation process for coating of magnesium particles with Viton polymer

Pourmortazavi

Babaee

Ashtiani

2015

Applied Surface Science

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Stearic acid coating on magnesium for enhancing corrosion resistance in Hanks' solution

Cited by 146 publications

References 20 publications

Organic corrosion inhibitors: where are we now? A review. Part II. Passivation and the role of chemical structure of carboxylates

Organic corrosion inhibitors: where are we now? A review. Part II. Passivation and the role of chemical structure of carboxylates

Effective and Environmentally Friendly Nickel Coating on the Magnesium Alloy

Statistical optimization of microencapsulation process for coating of magnesium particles with Viton polymer

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