2007•Fushi kexue yu fanghu jishuRequires access

STUDY ON PHYTIC ACID CONVERSION COATINGS FOR MAGNESIUM ALLOY I.Formation Mechanism and Corrosion Resistance of Phytic Acid Conversion Coatings

Qingfen Li

Abstract

The corrosion resistance of phytic acid conversion coatings on AZ91D magnesium alloy surface was studied by electrochemical methods.Morphology,composition and functional group of coatings were investigated by SEM,EDAX and FTIR,respectively.The formation mechanism of phytic acid conversion coatings was also discussed.Results show that the corrosion resistance of AZ91D magnesium alloy is improved by phytic acid coatings evidently.The conversion coatings formed under optimal processing parameters are found of high coverage and no cracks.The main elements of the conversion coatings are Mg,Al,O,P,and C.The FTIR results indicate that the coatings contain hydroxyl and phosphate radicals.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 1 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Phytic acid, Conversion coating, Corrosion, Materials science, Magnesium, Magnesium alloy, Fourier transform infrared spectroscopy, Electrochemistry