Corrosion Initiation Behavior of Thermal Control Oxidation Film of LA103Z Alloy

The magnesium lithium thermal control oxidation is a commonly used conductive anti-corrosion treatment method for aerospace. The corrosion behaviors of thermal control oxidation films for LA103Z alloys were studied in 3.5% NaCl solution. The corrosion characteristics with different immersion time we...

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Autores principales: Chen Wen, Jingying Bai, Kuo Zhao, Qingxin Cui, Baocheng Jiao, Xuguang Wang, Ligong Zhang
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Lenguaje:EN
Publicado: Frontiers Media S.A. 2021
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spelling oai:doaj.org-article:ee414b57fbdc47448035af8249876fcb2021-11-18T05:22:46ZCorrosion Initiation Behavior of Thermal Control Oxidation Film of LA103Z Alloy2296-801610.3389/fmats.2021.717663https://doaj.org/article/ee414b57fbdc47448035af8249876fcb2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmats.2021.717663/fullhttps://doaj.org/toc/2296-8016The magnesium lithium thermal control oxidation is a commonly used conductive anti-corrosion treatment method for aerospace. The corrosion behaviors of thermal control oxidation films for LA103Z alloys were studied in 3.5% NaCl solution. The corrosion characteristics with different immersion time were characterized by using scanning electron microscopy, energy spectroscopy, and electrochemical methods. The results showed that the corrosion of Mg-Li alloy with chemical oxidation film starts from pitting corrosion, gradually expands in depth in the early stage, forms corrosion holes, and then gradually develops into river-like morphology. In the last stage, the increasing corrosion products slow down the corrosion rate and gradually covers the entire sample surface. The corrosion product mainly consists of MgO, LiF, and MgCl2. Combined with the electrochemical characteristics, the corrosion mechanism was investigated.Chen WenJingying BaiKuo ZhaoQingxin CuiBaocheng JiaoXuguang WangLigong ZhangFrontiers Media S.A.articlecorrosionLA103Zthermal control coatingelectrochemicalelectrochemical.initiationTechnologyTENFrontiers in Materials, Vol 8 (2021)
institution DOAJ
collection DOAJ
language EN
topic corrosion
LA103Z
thermal control coating
electrochemical
electrochemical.
initiation
Technology
T
spellingShingle corrosion
LA103Z
thermal control coating
electrochemical
electrochemical.
initiation
Technology
T
Chen Wen
Jingying Bai
Kuo Zhao
Qingxin Cui
Baocheng Jiao
Xuguang Wang
Ligong Zhang
Corrosion Initiation Behavior of Thermal Control Oxidation Film of LA103Z Alloy
description The magnesium lithium thermal control oxidation is a commonly used conductive anti-corrosion treatment method for aerospace. The corrosion behaviors of thermal control oxidation films for LA103Z alloys were studied in 3.5% NaCl solution. The corrosion characteristics with different immersion time were characterized by using scanning electron microscopy, energy spectroscopy, and electrochemical methods. The results showed that the corrosion of Mg-Li alloy with chemical oxidation film starts from pitting corrosion, gradually expands in depth in the early stage, forms corrosion holes, and then gradually develops into river-like morphology. In the last stage, the increasing corrosion products slow down the corrosion rate and gradually covers the entire sample surface. The corrosion product mainly consists of MgO, LiF, and MgCl2. Combined with the electrochemical characteristics, the corrosion mechanism was investigated.
format article
author Chen Wen
Jingying Bai
Kuo Zhao
Qingxin Cui
Baocheng Jiao
Xuguang Wang
Ligong Zhang
author_facet Chen Wen
Jingying Bai
Kuo Zhao
Qingxin Cui
Baocheng Jiao
Xuguang Wang
Ligong Zhang
author_sort Chen Wen
title Corrosion Initiation Behavior of Thermal Control Oxidation Film of LA103Z Alloy
title_short Corrosion Initiation Behavior of Thermal Control Oxidation Film of LA103Z Alloy
title_full Corrosion Initiation Behavior of Thermal Control Oxidation Film of LA103Z Alloy
title_fullStr Corrosion Initiation Behavior of Thermal Control Oxidation Film of LA103Z Alloy
title_full_unstemmed Corrosion Initiation Behavior of Thermal Control Oxidation Film of LA103Z Alloy
title_sort corrosion initiation behavior of thermal control oxidation film of la103z alloy
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/ee414b57fbdc47448035af8249876fcb
work_keys_str_mv AT chenwen corrosioninitiationbehaviorofthermalcontroloxidationfilmofla103zalloy
AT jingyingbai corrosioninitiationbehaviorofthermalcontroloxidationfilmofla103zalloy
AT kuozhao corrosioninitiationbehaviorofthermalcontroloxidationfilmofla103zalloy
AT qingxincui corrosioninitiationbehaviorofthermalcontroloxidationfilmofla103zalloy
AT baochengjiao corrosioninitiationbehaviorofthermalcontroloxidationfilmofla103zalloy
AT xuguangwang corrosioninitiationbehaviorofthermalcontroloxidationfilmofla103zalloy
AT ligongzhang corrosioninitiationbehaviorofthermalcontroloxidationfilmofla103zalloy
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