In-situ AFM and quasi-in-situ studies for localized corrosion in Mg-9Al-1Fe-(Gd) alloys under 3.5 wt.% NaCl environment
Revealing the localized corrosion process of Mg alloy is considered as one of the most significant ways for improving its corrosion resistance. The reliable monitor should be high distinguishability and real-time in liquid environment. Herein, Mg-9Al-1Fe and Mg-9Al-1Fe-1Gd alloys were designed to hi...
| Main Authors: | , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/164862 |
| _version_ | 1811690876794044416 |
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| author | Shen, Junping Lai, Tao Yin, Zheng Chen, Yang Wang, Kun Yan, Hong Song, Honggun Liu, Ruiliang Luo, Chao Hu, Zhi |
| author2 | Singapore Centre for Environmental Life Sciences and Engineering |
| author_facet | Singapore Centre for Environmental Life Sciences and Engineering Shen, Junping Lai, Tao Yin, Zheng Chen, Yang Wang, Kun Yan, Hong Song, Honggun Liu, Ruiliang Luo, Chao Hu, Zhi |
| author_sort | Shen, Junping |
| collection | NTU |
| description | Revealing the localized corrosion process of Mg alloy is considered as one of the most significant ways for improving its corrosion resistance. The reliable monitor should be high distinguishability and real-time in liquid environment. Herein, Mg-9Al-1Fe and Mg-9Al-1Fe-1Gd alloys were designed to highlight the impact of intermetallic on the corrosion behaviour. In-situ AFM with a special electrolyte circulation system and quasi-in-situ SEM observation were used to monitor the corrosion process of the designed alloys. SEM-EDS and TEM-SAED were applied to identify the intermetallic in the designed alloys, and their volta potentials were measured by SKPFM. According to the real-time and real-space in-situ AFM monitor, the corrosion process consisted of dissolution of anodic α-Mg phase, accumulation of corrosion products around cathodic phase and shedding of some fine cathodic phase. Then, the localized corrosion process of Mg alloy was revealed combined with the results of the monitor of corrosion process and Volta potential difference. |
| first_indexed | 2024-10-01T06:10:58Z |
| format | Journal Article |
| id | ntu-10356/164862 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:10:58Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1648622023-02-25T15:31:48Z In-situ AFM and quasi-in-situ studies for localized corrosion in Mg-9Al-1Fe-(Gd) alloys under 3.5 wt.% NaCl environment Shen, Junping Lai, Tao Yin, Zheng Chen, Yang Wang, Kun Yan, Hong Song, Honggun Liu, Ruiliang Luo, Chao Hu, Zhi Singapore Centre for Environmental Life Sciences and Engineering Engineering::Environmental engineering Magnesium Localized Corrosion Revealing the localized corrosion process of Mg alloy is considered as one of the most significant ways for improving its corrosion resistance. The reliable monitor should be high distinguishability and real-time in liquid environment. Herein, Mg-9Al-1Fe and Mg-9Al-1Fe-1Gd alloys were designed to highlight the impact of intermetallic on the corrosion behaviour. In-situ AFM with a special electrolyte circulation system and quasi-in-situ SEM observation were used to monitor the corrosion process of the designed alloys. SEM-EDS and TEM-SAED were applied to identify the intermetallic in the designed alloys, and their volta potentials were measured by SKPFM. According to the real-time and real-space in-situ AFM monitor, the corrosion process consisted of dissolution of anodic α-Mg phase, accumulation of corrosion products around cathodic phase and shedding of some fine cathodic phase. Then, the localized corrosion process of Mg alloy was revealed combined with the results of the monitor of corrosion process and Volta potential difference. Published version Z. H. would like to acknowledge the financial support by the National Natural Science Foundation of China (51961026) and the Interdisciplinary Innovation Fund of Nanchang University (Project No.2019-9166-27060003). 2023-02-21T01:09:06Z 2023-02-21T01:09:06Z 2022 Journal Article Shen, J., Lai, T., Yin, Z., Chen, Y., Wang, K., Yan, H., Song, H., Liu, R., Luo, C. & Hu, Z. (2022). In-situ AFM and quasi-in-situ studies for localized corrosion in Mg-9Al-1Fe-(Gd) alloys under 3.5 wt.% NaCl environment. Journal of Magnesium and Alloys. https://dx.doi.org/10.1016/j.jma.2022.06.016 2213-9567 https://hdl.handle.net/10356/164862 10.1016/j.jma.2022.06.016 2-s2.0-85135519132 en Journal of Magnesium and Alloys © 2022 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). application/pdf |
| spellingShingle | Engineering::Environmental engineering Magnesium Localized Corrosion Shen, Junping Lai, Tao Yin, Zheng Chen, Yang Wang, Kun Yan, Hong Song, Honggun Liu, Ruiliang Luo, Chao Hu, Zhi In-situ AFM and quasi-in-situ studies for localized corrosion in Mg-9Al-1Fe-(Gd) alloys under 3.5 wt.% NaCl environment |
| title | In-situ AFM and quasi-in-situ studies for localized corrosion in Mg-9Al-1Fe-(Gd) alloys under 3.5 wt.% NaCl environment |
| title_full | In-situ AFM and quasi-in-situ studies for localized corrosion in Mg-9Al-1Fe-(Gd) alloys under 3.5 wt.% NaCl environment |
| title_fullStr | In-situ AFM and quasi-in-situ studies for localized corrosion in Mg-9Al-1Fe-(Gd) alloys under 3.5 wt.% NaCl environment |
| title_full_unstemmed | In-situ AFM and quasi-in-situ studies for localized corrosion in Mg-9Al-1Fe-(Gd) alloys under 3.5 wt.% NaCl environment |
| title_short | In-situ AFM and quasi-in-situ studies for localized corrosion in Mg-9Al-1Fe-(Gd) alloys under 3.5 wt.% NaCl environment |
| title_sort | in situ afm and quasi in situ studies for localized corrosion in mg 9al 1fe gd alloys under 3 5 wt nacl environment |
| topic | Engineering::Environmental engineering Magnesium Localized Corrosion |
| url | https://hdl.handle.net/10356/164862 |
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