Projects per year
Abstract
Layered double hydroxide (LDH) are widely studied as corrosion inhibition coatings
for magnesium (Mg) alloys due to their nano-lamellar structure and anion-exchange ability. The
two common approaches in synthesising LDH films on Mg alloys are co-precipitation and
hydrothermal treatment. Recently, electrodeposition has drawn more interest as a potential
synthesis approach due to the low cost, ease of control, one-step method, and ability to create a
compact film. In this work, Mg-Fe LDH film was synthesised on magnesium hydroxide,
Mg(OH)2 layer formed on Mg alloy WE43 by electrodeposition approach with the as-prepared
iron solution at different pH values. The effect of pH of the solution (3.0, 5.0 and 7.0) on the
formation of LDH films was investigated using Field Emission Scanning Electron Microscopy
(FESEM). Additionally, the surface chemical components of the film were obtained by Fourier
Transform Infrared Spectrometer (FTIR). All the LDH composite films synthesised at different
pH values undergo electrochemical tests in Hank's Balanced salt solution (HBSS). All samples
promote corrosion resistance of WE43 with the LDH film synthesised at pH 3.0 provided the
highest inhibition efficiency (I.E) of 94.48 % and resistance polarisation value of 3559. 07 Ωcm2
for magnesium (Mg) alloys due to their nano-lamellar structure and anion-exchange ability. The
two common approaches in synthesising LDH films on Mg alloys are co-precipitation and
hydrothermal treatment. Recently, electrodeposition has drawn more interest as a potential
synthesis approach due to the low cost, ease of control, one-step method, and ability to create a
compact film. In this work, Mg-Fe LDH film was synthesised on magnesium hydroxide,
Mg(OH)2 layer formed on Mg alloy WE43 by electrodeposition approach with the as-prepared
iron solution at different pH values. The effect of pH of the solution (3.0, 5.0 and 7.0) on the
formation of LDH films was investigated using Field Emission Scanning Electron Microscopy
(FESEM). Additionally, the surface chemical components of the film were obtained by Fourier
Transform Infrared Spectrometer (FTIR). All the LDH composite films synthesised at different
pH values undergo electrochemical tests in Hank's Balanced salt solution (HBSS). All samples
promote corrosion resistance of WE43 with the LDH film synthesised at pH 3.0 provided the
highest inhibition efficiency (I.E) of 94.48 % and resistance polarisation value of 3559. 07 Ωcm2
| Original language | English |
|---|---|
| Title of host publication | 32nd Symposium of Malaysian Chemical Engineers (SOMChE2021) |
| Publisher | IOP Publishing |
| Number of pages | 9 |
| DOIs | |
| Publication status | Published - 2021 |
| Event | Symposium of Malaysian Chemical Engineers 2021 - Sarawak, Malaysia Duration: 15 Jul 2021 → 16 Jul 2021 Conference number: 32nd https://iopscience.iop.org/issue/1757-899X/1195/1 |
Publication series
| Name | IOP Conference Series: Materials Science and Engineering |
|---|---|
| Publisher | IOP Publishing |
| Volume | 1195 |
| ISSN (Print) | 1757-899X |
Conference
| Conference | Symposium of Malaysian Chemical Engineers 2021 |
|---|---|
| Abbreviated title | SOMChE2021 |
| Country/Territory | Malaysia |
| City | Sarawak |
| Period | 15/07/21 → 16/07/21 |
| Internet address |
Keywords
- Layered double hydroxide, magnesium alloys, surface modification, corrosion, coatings
- electrodeposition
- composite film
Projects
- 1 Finished
-
Investigation of Stimuli Induced Corrosion Inhibition and Osseointegration of Bioactive Glass Coatings for Orthopedic Implants
Balan, P. (Primary Chief Investigator (PCI)), Kadirvelu, A. (Chief Investigator (CI)), Ilankoon, S. (Chief Investigator (CI)), Birbilis, N. (Chief Investigator (CI)) & Manivasagam, G. (Chief Investigator (CI))
1/01/19 → 30/09/22
Project: Research