Study of the Corrosion Process of AZ91D Magnesium Alloy during the First Hours of Immersion in 3.5 wt.% NaCl Solution
Joint Authors
Antunes, Renato Altobelli
de Oliveira, Mara Cristina Lopes
Pinela, Vanessa Mandarano
de Oliveira, Leandro Antônio
Source
International Journal of Corrosion
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-20, 20 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-29
Country of Publication
Egypt
No. of Pages
20
Main Subjects
Abstract EN
The AZ91D magnesium alloy was immersed in 3.5 wt.% NaCl solution at room temperature for times ranging from 1 minute up to 72 hours.
The aim was to investigate the evolution of the corrosion process using confocal laser scanning microscopy (CLSM), electrochemical impedance spectroscopy, and X-ray photoelectron spectroscopy.
The microstructure of the as-received alloy was initially characterized by optical microscopy and scanning electron microscopy (SEM).
The crystalline phases were identified by X-ray diffractometry.
The main phases were primary-α, eutectic-α, and β (Mg17Al12).
Vickers microhardness markings were made on the surface of one etched sample to facilitate the identification of the same region at each different immersion time, thus enabling the observation of the corrosion process evolution.
Corrosion initiates at the grain boundaries of the eutectic microconstituent and, then, propagates through primary α-grains.
The β-phase was less severely attacked.
American Psychological Association (APA)
Pinela, Vanessa Mandarano& de Oliveira, Leandro Antônio& de Oliveira, Mara Cristina Lopes& Antunes, Renato Altobelli. 2018. Study of the Corrosion Process of AZ91D Magnesium Alloy during the First Hours of Immersion in 3.5 wt.% NaCl Solution. International Journal of Corrosion،Vol. 2018, no. 2018, pp.1-20.
https://search.emarefa.net/detail/BIM-1169912
Modern Language Association (MLA)
Pinela, Vanessa Mandarano…[et al.]. Study of the Corrosion Process of AZ91D Magnesium Alloy during the First Hours of Immersion in 3.5 wt.% NaCl Solution. International Journal of Corrosion No. 2018 (2018), pp.1-20.
https://search.emarefa.net/detail/BIM-1169912
American Medical Association (AMA)
Pinela, Vanessa Mandarano& de Oliveira, Leandro Antônio& de Oliveira, Mara Cristina Lopes& Antunes, Renato Altobelli. Study of the Corrosion Process of AZ91D Magnesium Alloy during the First Hours of Immersion in 3.5 wt.% NaCl Solution. International Journal of Corrosion. 2018. Vol. 2018, no. 2018, pp.1-20.
https://search.emarefa.net/detail/BIM-1169912
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1169912