Next Article in Journal
Assessment of the Pozzolanic Activity of a Spent Catalyst by Conductivity Measurement of Aqueous Suspensions with Calcium Hydroxide
Next Article in Special Issue
Isothermal Time-Temperature-Precipitation Diagram for an Aluminum Alloy 6005A by In Situ DSC Experiments
Previous Article in Journal
Structural Properties of Zinc Oxide Nanorods Grown on Al-Doped Zinc Oxide Seed Layer and Their Applications in Dye-Sensitized Solar Cells
Previous Article in Special Issue
Tensile Properties and Fracture Behavior of Aluminum Alloy Foam Fabricated from Die Castings without Using Blowing Agent by Friction Stir Processing Route
Article Menu

Export Article

Open AccessArticle
Materials 2014, 7(4), 2534-2560; doi:10.3390/ma7042534

Effect of Native Oxide Film on Commercial Magnesium Alloys Substrates and Carbonate Conversion Coating Growth and Corrosion Resistance

1
Centro Nacional de Investigaciones Metalúrgicas CSIC, Avda. Gregorio del Amo 8, Madrid 28040, Spain
2
Departamento de Ciencias de los Materiales, Simon Bolivar University, Baruta, Caracas 1080-A, Venezuela
3
Physics Department, Faculty of Science, Al-Azhar University, Nasr City 11884, Cairo, Egypt
*
Author to whom correspondence should be addressed.
Received: 4 February 2014 / Revised: 19 March 2014 / Accepted: 21 March 2014 / Published: 28 March 2014
(This article belongs to the Special Issue Light Alloys and Their Applications)
View Full-Text   |   Download PDF [1352 KB, uploaded 28 March 2014]   |  

Abstract

Possible relations between the native oxide film formed spontaneously on the AZ31 and AZ61 magnesium alloy substrates with different surface finish, the chemistry of the outer surface of the conversion coatings that grows after their subsequent immersion on saturated aqueous NaHCO3 solution treatment and the enhancement of corrosion resistance have been studied. The significant increase in the amount of aluminum and carbonate compounds on the surface of the conversion coating formed on the AZ61 substrate in polished condition seems to improve the corrosion resistance in low chloride ion concentration solutions. In contrast, the conversion coatings formed on the AZ31 substrates in polished condition has little effect on their protective properties compared to the respective as-received surface.
Keywords: magnesium; XPS; SEM; passivity; segregation magnesium; XPS; SEM; passivity; segregation
Figures

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Feliu, Jr., S.; Samaniego, A.; Bermudez, E.A.; El-Hadad, A.A.; Llorente, I.; Galván, J.C. Effect of Native Oxide Film on Commercial Magnesium Alloys Substrates and Carbonate Conversion Coating Growth and Corrosion Resistance. Materials 2014, 7, 2534-2560.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top