Crystallization of a chemical conversion layer that forms on AZ91D magnesium alloy in carbonic acid
This investigation studied the crystallization of a chemical conversion layer that formed on AZ91D Mg alloy in carbonic acid. The layer was an amorphous precursor to a crystalline Mg-Al layered double hydrotalcite, which improved the corrosion resistance of the alloy. The precursor must be treated w...
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Online Access: | http://hdl.handle.net/11455/43182 https://doi.org/10.1016/j.corsci.2011.07.035 |
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ftnchunghsing:oai:ir.lib.nchu.edu.tw:11455/43182 2023-05-15T15:52:26+02:00 Crystallization of a chemical conversion layer that forms on AZ91D magnesium alloy in carbonic acid Lin, Jun-Kai Jeng, Kai-Li Uan, Jun-Yen National Chung Hsing University,Department of Materials Engineering 國立中興大學材料工程學系 Miao-zhen Luo 2011-11 http://hdl.handle.net/11455/43182 https://doi.org/10.1016/j.corsci.2011.07.035 en_US eng Elsevier Ltd. #PLACEHOLDER_PARENT_METADATA_VALUE# Corrosion Science, Volume 53, Issue 11, Page(s) 3832-3839. 0010-938X http://hdl.handle.net/11455/43182 doi:10.1016/j.corsci.2011.07.035 none A. Magnesium A. Acid solutions B. Polarization B. IR spectroscopy B. Raman spectroscopy C. Amorphous structures Journal Article 2011 ftnchunghsing https://doi.org/10.1016/j.corsci.2011.07.035 2021-06-26T20:25:54Z This investigation studied the crystallization of a chemical conversion layer that formed on AZ91D Mg alloy in carbonic acid. The layer was an amorphous precursor to a crystalline Mg-Al layered double hydrotalcite, which improved the corrosion resistance of the alloy. The precursor must be treated with a strongly alkaline solution, causing the leaching out of amphoteric Al3+. The leaching step evidently caused crystallization from an amorphous precursor layer to a crystalline coating. Nuclear magnetic resonance analysis indicated that Al3+, which was originally randomly coordinated with surrounding OH− in the precursor, coordinated octahedrally with OH− groups in the crystalline conversion coating. Article in Journal/Newspaper Carbonic acid National Chung Hsing University Institutional Repository - NCHUIR Corrosion Science 53 11 3832 3839 |
institution |
Open Polar |
collection |
National Chung Hsing University Institutional Repository - NCHUIR |
op_collection_id |
ftnchunghsing |
language |
English |
topic |
A. Magnesium A. Acid solutions B. Polarization B. IR spectroscopy B. Raman spectroscopy C. Amorphous structures |
spellingShingle |
A. Magnesium A. Acid solutions B. Polarization B. IR spectroscopy B. Raman spectroscopy C. Amorphous structures Lin, Jun-Kai Jeng, Kai-Li Uan, Jun-Yen Crystallization of a chemical conversion layer that forms on AZ91D magnesium alloy in carbonic acid |
topic_facet |
A. Magnesium A. Acid solutions B. Polarization B. IR spectroscopy B. Raman spectroscopy C. Amorphous structures |
description |
This investigation studied the crystallization of a chemical conversion layer that formed on AZ91D Mg alloy in carbonic acid. The layer was an amorphous precursor to a crystalline Mg-Al layered double hydrotalcite, which improved the corrosion resistance of the alloy. The precursor must be treated with a strongly alkaline solution, causing the leaching out of amphoteric Al3+. The leaching step evidently caused crystallization from an amorphous precursor layer to a crystalline coating. Nuclear magnetic resonance analysis indicated that Al3+, which was originally randomly coordinated with surrounding OH− in the precursor, coordinated octahedrally with OH− groups in the crystalline conversion coating. |
author2 |
National Chung Hsing University,Department of Materials Engineering 國立中興大學材料工程學系 Miao-zhen Luo |
format |
Article in Journal/Newspaper |
author |
Lin, Jun-Kai Jeng, Kai-Li Uan, Jun-Yen |
author_facet |
Lin, Jun-Kai Jeng, Kai-Li Uan, Jun-Yen |
author_sort |
Lin, Jun-Kai |
title |
Crystallization of a chemical conversion layer that forms on AZ91D magnesium alloy in carbonic acid |
title_short |
Crystallization of a chemical conversion layer that forms on AZ91D magnesium alloy in carbonic acid |
title_full |
Crystallization of a chemical conversion layer that forms on AZ91D magnesium alloy in carbonic acid |
title_fullStr |
Crystallization of a chemical conversion layer that forms on AZ91D magnesium alloy in carbonic acid |
title_full_unstemmed |
Crystallization of a chemical conversion layer that forms on AZ91D magnesium alloy in carbonic acid |
title_sort |
crystallization of a chemical conversion layer that forms on az91d magnesium alloy in carbonic acid |
publisher |
Elsevier Ltd. |
publishDate |
2011 |
url |
http://hdl.handle.net/11455/43182 https://doi.org/10.1016/j.corsci.2011.07.035 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# Corrosion Science, Volume 53, Issue 11, Page(s) 3832-3839. 0010-938X http://hdl.handle.net/11455/43182 doi:10.1016/j.corsci.2011.07.035 |
op_rights |
none |
op_doi |
https://doi.org/10.1016/j.corsci.2011.07.035 |
container_title |
Corrosion Science |
container_volume |
53 |
container_issue |
11 |
container_start_page |
3832 |
op_container_end_page |
3839 |
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1766387622508232704 |