Effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in natural seawater
The effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in f/2 culture medium was studied by means of X-ray diffraction, scanning electron microscope, energy dispersive analysis system of X-ray and other electrochemistry test. Results show that the main corrosion products on the...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2020-01-01
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| Series: | Cailiao gongcheng |
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| Online Access: | http://jme.biam.ac.cn/CN/Y2020/V48/I1/98 |
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| author | LIN Meng-xiao ZHANG Jie JIANG Quan-tong LI Jia-run LU Dong-zhu HOU Bao-rong SUN Yuan-yuan |
| author_facet | LIN Meng-xiao ZHANG Jie JIANG Quan-tong LI Jia-run LU Dong-zhu HOU Bao-rong SUN Yuan-yuan |
| author_sort | LIN Meng-xiao |
| collection | DOAJ |
| description | The effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in f/2 culture medium was studied by means of X-ray diffraction, scanning electron microscope, energy dispersive analysis system of X-ray and other electrochemistry test. Results show that the main corrosion products on the surface of alloy with and without chlorella vulgaris are Mg (OH)<sub>2</sub>,Mg<sub>3</sub> (PO<sub>4</sub>)<sub>2</sub> and Mg<sub>2</sub> (OH)<sub>3</sub>Cl; Mg and O are present on the specimen surface, and the content of Mg in culture medium with chlorella vulgaris (29.6%) is lower than that without chlorella vulgaris (39.8%); and corrosive ions invade the loose corrosion product structure and promote further corrosion of the alloy; the high O<sub>2</sub> concentration produced by the photosynthesis of chlorella vulgaris results in the increase of local O<sub>2</sub> concentration underneath the biofilm, which adds oxygen reduction cathodic currents and enhances corrosion. It is conduded that the average corrosion rate in the presence of chlorella vulgaris is more serious than that in the absence of chlorella vulgaris. |
| first_indexed | 2024-04-11T02:29:03Z |
| format | Article |
| id | doaj.art-560c649480cd40318ca290c3169725f4 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:29:03Z |
| publishDate | 2020-01-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-560c649480cd40318ca290c3169725f42023-01-02T21:47:21ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812020-01-014819810710.11868/j.issn.1001-4381.2018.00015720200114Effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in natural seawaterLIN Meng-xiao0ZHANG Jie1JIANG Quan-tong2LI Jia-run3LU Dong-zhu4HOU Bao-rong5SUN Yuan-yuan6College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China;Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China;Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China;Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China;Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China;Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, ChinaThe effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in f/2 culture medium was studied by means of X-ray diffraction, scanning electron microscope, energy dispersive analysis system of X-ray and other electrochemistry test. Results show that the main corrosion products on the surface of alloy with and without chlorella vulgaris are Mg (OH)<sub>2</sub>,Mg<sub>3</sub> (PO<sub>4</sub>)<sub>2</sub> and Mg<sub>2</sub> (OH)<sub>3</sub>Cl; Mg and O are present on the specimen surface, and the content of Mg in culture medium with chlorella vulgaris (29.6%) is lower than that without chlorella vulgaris (39.8%); and corrosive ions invade the loose corrosion product structure and promote further corrosion of the alloy; the high O<sub>2</sub> concentration produced by the photosynthesis of chlorella vulgaris results in the increase of local O<sub>2</sub> concentration underneath the biofilm, which adds oxygen reduction cathodic currents and enhances corrosion. It is conduded that the average corrosion rate in the presence of chlorella vulgaris is more serious than that in the absence of chlorella vulgaris.http://jme.biam.ac.cn/CN/Y2020/V48/I1/98mg-3y-1.5nd alloychlorella vulgarismicrobiological corrosionelectrochemistry |
| spellingShingle | LIN Meng-xiao ZHANG Jie JIANG Quan-tong LI Jia-run LU Dong-zhu HOU Bao-rong SUN Yuan-yuan Effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in natural seawater Cailiao gongcheng mg-3y-1.5nd alloy chlorella vulgaris microbiological corrosion electrochemistry |
| title | Effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in natural seawater |
| title_full | Effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in natural seawater |
| title_fullStr | Effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in natural seawater |
| title_full_unstemmed | Effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in natural seawater |
| title_short | Effect of chlorella vulgaris on corrosion behavior of Mg-3Y-1.5Nd alloy in natural seawater |
| title_sort | effect of chlorella vulgaris on corrosion behavior of mg 3y 1 5nd alloy in natural seawater |
| topic | mg-3y-1.5nd alloy chlorella vulgaris microbiological corrosion electrochemistry |
| url | http://jme.biam.ac.cn/CN/Y2020/V48/I1/98 |
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