Effect of Heat Treatment on Corrosion Behaviour of Magnesium Alloy Mg10Gd1Eu1Zn0.2Zr in 1wt% NaCl Solution for Biomaterial Application

The influence of heat treatment on the corrosion resistance of magnesium alloy Mg10Gd1Eu1Zn0.2Zr in 1wt% chloride solution has been studied by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), X-ray diffraction and scanning electron microscopy (SEM). The study...

Full description

Saved in:
Bibliographic Details
Published in:International journal of electrochemical science 2015-11, Vol.10 (11), p.9395-9407
Main Authors: Zidane, Naima, Addi, Abdelaziz Ait, Akbour, Rachid Ait, Douch, Jamaâ, Singh, Ravandra Nath, Hamdani, Mohamed
Format: Article
Language:English
Subjects:
Biomaterial Implant
Corrosion rate
EIS
Heat treatment
Mg Alloy
Mg10Gd1Eu1Zn0.2Zr
Polarization measurement
Scanning electron microscopy
X-ray diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The influence of heat treatment on the corrosion resistance of magnesium alloy Mg10Gd1Eu1Zn0.2Zr in 1wt% chloride solution has been studied by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), X-ray diffraction and scanning electron microscopy (SEM). The study indicates that the corrosion rate of magnesium alloy is quite sensitive to the heat treatment. The Open circuit potential (OCP), the corrosion potential (Ecorr), the charge transfer resistance (Rct), and the corrosion resistance increased while the corrosion current density (Icorr) and hence the corrosion rate decreased in the following order F, T4 and T6. The X-ray diffraction (XRD) has shown well crystallized Mg(OH)2 patterns beneath the Mg alloy immersed in chloride solution. The morphology of the alloy after immersion in the chloride solution presents a film of corrosion products with cracks and pits which depend on undergoing heat treatment.
ISSN:1452-3981
1452-3981
DOI:10.1016/S1452-3981(23)11187-4