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Hydrothermal Treatment and Butylphosphonic Acid Derived Self-Assembled Monolayers for Improving the Surface Chemistry and Corrosion Resistance of AZ61 Magnesium Alloy

Hydrothermal Treatment and Butylphosphonic Acid Derived Self-Assembled Monolayers for Improving the Surface Chemistry and Corrosion Resistance of AZ61 Magnesium Alloy

Chung-Wei Yang, Cheng Liu, Da-Jun Lin, Ming-Long Yeh, Tzer-Min Lee

Sci Rep. 2017 Dec 4;7(1):16910.

PMID: 29203906

Abstract:

The hydrothermal treatment followed by a self-assembled monolayer (SAM) of 1-butylphosphonic acid through the tethering by aggregation and growth (T-BAG) method was employed to produce protective surface coatings on the Mg-6Al-1Zn alloy (AZ61) for reducing the degradation rate in physiological environments. Potentiodynamic polarization measurements revealed that the organic self-assembled monolayer and Mg(OH)2 coating can further enhance the surface chemical stability and corrosion resistance of Mg alloys. SAM-treated Mg(OH)2 coatings can be served as a more passive surface layer as a result of their much higher charge transfer resistance and the presence of Warburg impedance in electrochemical impedance spectroscopy measurement.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP3321640	Butylphosphonic acid		3321-64-0	Price

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