Daroonparvar, Mohammadreza and Mat Yajid, Muhamad Azizi and Bakhsheshi-Rad, Hamid Reza and Kumar, Pankaj and Kay, Charles M. and Kalvala, Prasad Rao (2020) Fabrication and corrosion resistance evaluation of novel epoxy/oxide layer (MgO) coating on Mg alloy. Protection of Metals and Physical Chemistry of Surfaces, 56 (5). pp. 1039-1050. ISSN 2070-2051
Full text not available from this repository.
Official URL: http://dx.doi.org/10.1134/S2070205120050093
Abstract
A protective novel (MgO) oxide layer (with 91.92% corrosion protection efficiency) was successfully applied on Mg–0.4%Ca alloy using protective oxidation at 390°C (without any pre-treatment). Oxide layer coated Mg alloy was then coated with pure epoxy coating (as top coat). This oxide inner barrier layer protected Mg substrate from 3.5wt % NaCl solution when it passes through from epoxy top layer. Lowest anodic current density and highest charge transfer resistance (1118.124 kΩ cm2) and impedance modulus (│Z│) at low frequency substantiated that the existence of thick epoxy top layer which is integrated (via physical anchoring) with the oxide inner barrier layer could considerably reduce the corrosion rate of magnesium substrate in the chloride containing solutions. Moreover, corrosion mechanism for coated Mg–0.4%Ca alloys was then suggested.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | corrosion, microstructure |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Mechanical Engineering |
| ID Code: | 91774 |
| Deposited By: | Widya Wahid |
| Deposited On: | 28 Jul 2021 08:42 |
| Last Modified: | 28 Jul 2021 08:42 |
Repository Staff Only: item control page
