Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniques

  1. Home
  2. Research
  3. Publications

abstract

An active protective coating for ZE41 magnesium alloy was produced by sealing an anodic layer, loaded with 1,2,4-triazole, with a sol-gel film. An anodic oxide layer was formed using PEO in a silicate-fluoride alkaline solution. This thin (1.8 mu m) porous PEO layer was impregnated with corrosion inhibitor 1,2,4-triazole and sealed with a silica-based sol-gel film modified with titanium oxide. For the first time it was demonstrated that this relatively thin PEO-based composite coating revealed high barrier properties and provided superior protection against corrosion attack during 1 month of continuous exposure to 3% NaCl. A scanning vibrating electrode technique showed a sharp decrease (100 times) of corrosion activity in micro defects formed in the 1,2,4-triazole doped composite coating, when compared to blank samples.

keywords

PLASMA ELECTROLYTIC OXIDATION; AZ31 MG ALLOY; COMPOSITE COATINGS; RESISTANCE; AA2024; FILMS; IMPROVEMENT; CONVERSION; LAYER

subject category

Chemistry

authors

Ivanou, DK; Yasakau, KA; Kallip, S; Lisenkov, AD; Starykevich, M; Lamaka, SV; Ferreira, MGS; Zheludkevich, ML

our authors

no photo

Aleksey Lisenkov

Junior Researcher
foto Kiryl Yasakau

Kiryl Yasakau

Assistant Researcher
foto Maksim Starykevich

Maksim Starykevich

Junior Researcher
foto Mário Guerreiro Silva Ferreira

Mário Guerreiro Silva Ferreira

Retired Professor
foto Mikhail Zheludkevich

Mikhail Zheludkevich

Invited Principal Researcher
foto Silvar Kallip

Silvar Kallip

Assistant Researcher

Groups

G3 - Electrochemical Materials, Interfaces and Coatings

Projects

Fault-tolerant anticorrosion coatings for magnesium alloys (PTDC/CTM-MET/112831/2009)

RMNE-UA-National Network of Electron Microscopy (REDE/1509/RME/2005 )

acknowledgements

Portuguese Foundation for Science and Technology (FCT), project Fatomag, PTDC/CTM-MET/112831/2009. The financial support of FCT in frame of REDE/1509/RME/2005 project is gratefully acknowledged. K. A. Yasakau thanks FCT for Post-Doctoral grant (ref. SFRH/BPD/80754/2011). Airbus Group Innovations, Munich, Germany for supplying the alloys. S. Kallip thanks FCT for grant IF/00856/2013. S. V. Lamaka thanks the Alexander von Humboldt foundation for financial support of her Experienced Researcher grant.

Share this project:

Related Publications

Publication Details

type
Journal Article
year
2016
journal
RSC ADVANCES
volume
6
publisher
ROYAL SOC CHEMISTRY
issn
2046-2069
issue
15
digital object identifier
10.1039/c5ra22639b
web of science article identifier
WOS:000369545800083

Journal Metrics (JCR 2019)

Journal Impact Factor
3.119
Journal Impact Factor (5 yrs)
3.098
category normalized journal percentile
59.04

Citations

Social Interaction

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".


Privacy and Cookie Policy

Personal data

CICECO-Aveiro Institute of Materials respects your privacy, ensuring confidentiality of personal data you share with the institution through this way, not collecting any personal information about you without your consent, under the terms required by General Data Protection Regulations (RGPD).

The data collected in forms are intended exclusively for processing user requests and will not be used for any other purpose, always safeguarding their confidentiality, under the terms of the protection conferred by the aforementioned regulation.

The collection and processing of data is the responsibility of CICECO and its storage is properly protected, only authorized CICECO employees can access the information within the scope of their functions, always being clear in the respective collection forms the purposes for which they are intended. The remaining issues to be considered in this matter will be handled by the University of Aveiro in accordance with the regime established by the GDPR.

Cookies policy

Cookies are small files with alphanumeric information that are stored on your computer's hard drive by your browser and are intended to improve the user experience and enhance website navigation.

Collection and use of technical information

The cookies used on CICECO are anonymous, and no information about our users that allows their personal identification is stored in them.

The technical information recorded consists of:

  • iP (Internet Protocol) address of the visitor;
  • the type of internet browser used by the website visitor and the respective operating system used;
  • the date and time of the consultation;
  • the pages visited on the site and the documents downloaded
  • The technical information collected is used for statistical purposes only.

Cookies used

Session cookies

These cookies are used to record user preferences, such as the language in which websites are displayed or to maintain authenticated user sessions, and are automatically deleted when the browser is closed.

Persistent cookies

These cookies store information that is needed between sessions. For example, a persistent cookie is set to record that you have been made aware of the cookie policy so that the message regarding this policy is not shown again the next time you visit the website. This cookie remains on the computer until it reaches its expiry date or is deleted by the user.

Data protection

The present privacy policy covers the Information System of the University of Aveiro (SIUA), governed by the General Data Protection Regulations (RGPD) Regulation (EU) No. 2016/679, of April 27th, 2016.

Data Protection Officer

The University of Aveiro has a Data Protection Officer (DPO), who ensures compliance of the processing of personal data with the legislation in force, and is available through the following email address epd@ua.pt.

Close