Corrosion behavior of AZ91D magnesium alloy in distilled water
The corrosion of AZ91D magnesium alloy has received extensive attention due to the continuous expansion of its application field in recent years. However, the corrosion of AZ91D magnesium alloy in distilled water is relatively few. In this paper, the corrosion behavior of AZ91D magnesium alloy was s...
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doaj-283688d5d3e24801b5971b9304c154122020-11-25T03:46:07ZengElsevierArabian Journal of Chemistry1878-53522020-07-0113760446055Corrosion behavior of AZ91D magnesium alloy in distilled waterHualiang Huang0Wenlu Yang1Corresponding author.; School of Chemistry and Environmental Engineering, Key Laboratory of Green Chemical Process of Ministry of Education, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, Wuhan Institute of Technology, Wuhan 430074, PR ChinaSchool of Chemistry and Environmental Engineering, Key Laboratory of Green Chemical Process of Ministry of Education, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, Wuhan Institute of Technology, Wuhan 430074, PR ChinaThe corrosion of AZ91D magnesium alloy has received extensive attention due to the continuous expansion of its application field in recent years. However, the corrosion of AZ91D magnesium alloy in distilled water is relatively few. In this paper, the corrosion behavior of AZ91D magnesium alloy was studied in distilled water by electrochemical tests in combination with weight loss and surface analysis methods. The results indicated that the corrosion rate of AZ91D magnesium alloy increased with the increase of temperature and immersion time. The increase of the corrosion rate of AZ91D magnesium alloy with the increase of immersion time might be attributed to the damage of the structure of corrosion product film by hydrogen evolution, significantly accelerating the anodic process of AZ91D magnesium alloy. It was interesting that, in distilled water, the EIS of AZ91D magnesium alloy excluded an inductive arc in the low frequency region, which indicated that there was no the adsorption and desorption of aggressive ions or the damage and repair of film. The corrosion product film of AZ91D magnesium alloy in distilled water was composed of a compact inner corrosion product film and a loose outer corrosion product film.http://www.sciencedirect.com/science/article/pii/S1878535220301519AZ91D magnesium alloyDistilled waterCorrosionEISSEM |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hualiang Huang Wenlu Yang |
spellingShingle |
Hualiang Huang Wenlu Yang Corrosion behavior of AZ91D magnesium alloy in distilled water Arabian Journal of Chemistry AZ91D magnesium alloy Distilled water Corrosion EIS SEM |
author_facet |
Hualiang Huang Wenlu Yang |
author_sort |
Hualiang Huang |
title |
Corrosion behavior of AZ91D magnesium alloy in distilled water |
title_short |
Corrosion behavior of AZ91D magnesium alloy in distilled water |
title_full |
Corrosion behavior of AZ91D magnesium alloy in distilled water |
title_fullStr |
Corrosion behavior of AZ91D magnesium alloy in distilled water |
title_full_unstemmed |
Corrosion behavior of AZ91D magnesium alloy in distilled water |
title_sort |
corrosion behavior of az91d magnesium alloy in distilled water |
publisher |
Elsevier |
series |
Arabian Journal of Chemistry |
issn |
1878-5352 |
publishDate |
2020-07-01 |
description |
The corrosion of AZ91D magnesium alloy has received extensive attention due to the continuous expansion of its application field in recent years. However, the corrosion of AZ91D magnesium alloy in distilled water is relatively few. In this paper, the corrosion behavior of AZ91D magnesium alloy was studied in distilled water by electrochemical tests in combination with weight loss and surface analysis methods. The results indicated that the corrosion rate of AZ91D magnesium alloy increased with the increase of temperature and immersion time. The increase of the corrosion rate of AZ91D magnesium alloy with the increase of immersion time might be attributed to the damage of the structure of corrosion product film by hydrogen evolution, significantly accelerating the anodic process of AZ91D magnesium alloy. It was interesting that, in distilled water, the EIS of AZ91D magnesium alloy excluded an inductive arc in the low frequency region, which indicated that there was no the adsorption and desorption of aggressive ions or the damage and repair of film. The corrosion product film of AZ91D magnesium alloy in distilled water was composed of a compact inner corrosion product film and a loose outer corrosion product film. |
topic |
AZ91D magnesium alloy Distilled water Corrosion EIS SEM |
url |
http://www.sciencedirect.com/science/article/pii/S1878535220301519 |
work_keys_str_mv |
AT hualianghuang corrosionbehaviorofaz91dmagnesiumalloyindistilledwater AT wenluyang corrosionbehaviorofaz91dmagnesiumalloyindistilledwater |
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1724507732724154368 |