Evaluation of Microstructure, Chemical Composition and Corrosion Resistance of Oxide Coating, Produced by Hard Anodizing in Oxalic Acid Electrolyte

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

SOLTANI MASOUD; SHAFYEI ALI; AKHAVAN SAEED; NOORMOHAMMADI MOHAMMAD

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING Year:2018 | Volume:14 | Issue:37 Page(s): 53-69

Download Full-Text

Persian Verion

View:

342

Download:

Cites:

Information Journal Paper

Title

Evaluation of Microstructure, Chemical Composition and Corrosion Resistance of Oxide Coating, Produced by Hard Anodizing in Oxalic Acid Electrolyte

Author(s)

SOLTANI MASOUD | SHAFYEI ALI | AKHAVAN SAEED | NOORMOHAMMADI MOHAMMAD | Issue Writer Certificate

Keywords

Hard anodizingQ1

AluminiumQ2

Barrier layerQ1

temperatureQ2

CorrosionQ2

Abstract

Hard anodizing, as one of the methods to improve surface properties, has always been considered for aluminum. But the difficulty of controlling the temperature and the formation of an anodic aluminum oxide layer at the bottom of the pores are two important problems in this method. In this investigation, by designing an anodizing reactor, precise control of the coating conditions and the use of a mild anodizing (at 40 volts) prior to Hard anodizing (at 130 volts), current density changes during the coating of 1100 aluminum alloy in an oxalic acid solution were studied. T he current density-time curves and field emission scanning electron microscopy (FESEM) images showed an increase of current density and a transition from mild to Hard anodizing, which was accompanied by an increase in interpore distance. The x-ray diffraction (XRD) results indicate a coating with an amorphous alumina structure. Energy dispersive spectroscopy (EDS) analysis also showed that the coating only contains oxygen and aluminum due to the formation of alumina. The results of the polarization test indicated a significant improvement in the alloy Corrosion resistance with the application of aluminum oxide layer. Anodizing at three temperatures of zero, 10 and 17 ℃ showed that increasing the temperature would increase the charge density and thickness of the oxide layer, but there was no significant effect on the interpore distance, pore diameter, the thickness of the Barrier layer and the pore density, indicating that these parameters are independent of current density. However, due to more corrosive intensity of solution, the range of changes in these parameters increases. T he porosity of the coat ing also increases from 15. 6% to 17. 3%. By comparing the anodizing of pure aluminum and 1100 aluminum alloy, it was found that the presence of alloying elements would lead to a reduction in the coating arrangement.

Cites

No record.

References

No record.

Cite

APA: Copy

SOLTANI, MASOUD, SHAFYEI, ALI, AKHAVAN, SAEED, & NOORMOHAMMADI, MOHAMMAD. (2018). Evaluation of Microstructure, Chemical Composition and Corrosion Resistance of Oxide Coating, Produced by Hard Anodizing in Oxalic Acid Electrolyte. IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, 14(37 ), 53-69. SID. https://sid.ir/paper/407229/en

Vancouver: Copy

SOLTANI MASOUD, SHAFYEI ALI, AKHAVAN SAEED, NOORMOHAMMADI MOHAMMAD. Evaluation of Microstructure, Chemical Composition and Corrosion Resistance of Oxide Coating, Produced by Hard Anodizing in Oxalic Acid Electrolyte. IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING[Internet]. 2018;14(37 ):53-69. Available from: https://sid.ir/paper/407229/en

IEEE: Copy

MASOUD SOLTANI, ALI SHAFYEI, SAEED AKHAVAN, and MOHAMMAD NOORMOHAMMADI, “Evaluation of Microstructure, Chemical Composition and Corrosion Resistance of Oxide Coating, Produced by Hard Anodizing in Oxalic Acid Electrolyte,” IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, vol. 14, no. 37 , pp. 53–69, 2018, [Online]. Available: https://sid.ir/paper/407229/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops