Development of a New Type of Aluminum - Based Sacrificial Anode for Separator
The aluminum alloy sacrificial anode used in oil and gas field separators has the problems of low current efficiency and local block loss during the service. According to the national standard, Zn, In, Mg and Ti with different contents were added in the alloy and the influences of alloying element c...
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| Format: | Article |
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Editorial Department of Materials Protection
2021-05-01
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| Series: | Cailiao Baohu |
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| Online Access: | http://www.mat-pro.com/fileup/1001-1560/PDF/20210516.pdf |
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| author | XI Yun - tao, CHEN Wen - hao, LIU Rui, HE Jian - guo, XU Shan - na |
| author_facet | XI Yun - tao, CHEN Wen - hao, LIU Rui, HE Jian - guo, XU Shan - na |
| author_sort | XI Yun - tao, CHEN Wen - hao, LIU Rui, HE Jian - guo, XU Shan - na |
| collection | DOAJ |
| description | The aluminum alloy sacrificial anode used in oil and gas field separators has the problems of low current efficiency and local block loss during the service. According to the national standard, Zn, In, Mg and Ti with different contents were added in the alloy and the influences of alloying element contents on anode current efficiency and dissolution performance were studied by means of orthogonal experiment method to develop a new kind of high efficiency sacrificial anode. Results showed that the effect of Mg and Zn on the current efficiency was greater than that of In and Ti, and the influence trend of the change of each element content on the current efficiency was different. Mg content was the main factor influencing anode corrosion uniformity, which formed a second phase in the aluminum alloy anode, leading to changes in the local surface potential, and then forming a local micro - battery, eventually, the local corrosion of the anode surface was accelerated. Ti element played a role in the grain refinement. If the two contents of Mg and Ti were not properly matched, it would cause serious local segregation, causing the anode falling - block problem. Based on the range analysis of orthogonal test, the optimal combination of sacrificial anode formulation was 0.5%Mg - 4%Zn - 0.035%In - 0.045%Ti, which could significantly increase the current efficiency of the sacrificial anode and improve the dissolution uniformity of the sample. |
| format | Article |
| id | doaj-art-373f306e77d442ad96e607ef148f9a37 |
| institution | Kabale University |
| issn | 1001-1560 |
| language | zho |
| publishDate | 2021-05-01 |
| publisher | Editorial Department of Materials Protection |
| record_format | Article |
| series | Cailiao Baohu |
| spelling | doaj-art-373f306e77d442ad96e607ef148f9a372025-08-20T03:50:17ZzhoEditorial Department of Materials ProtectionCailiao Baohu1001-15602021-05-01545899310.16577/j.cnki.42-1215/tb.2021.05.016Development of a New Type of Aluminum - Based Sacrificial Anode for SeparatorXI Yun - tao, CHEN Wen - hao, LIU Rui, HE Jian - guo, XU Shan - na0(1. School of Material Science and Engineering, Xi’an Shiyou University, Xi’an 710065, China;2. National Engineering Lab for Exploration and Development of Low - Permeability Oil & Gas Fields, Oil & Gas Technology Research Institute, Changqing Oilfield Company, Xi’an 710018, China; 3.Machinery Manufacturing Plant, Changqing Oilfield Company, Xi’an 710201, China)The aluminum alloy sacrificial anode used in oil and gas field separators has the problems of low current efficiency and local block loss during the service. According to the national standard, Zn, In, Mg and Ti with different contents were added in the alloy and the influences of alloying element contents on anode current efficiency and dissolution performance were studied by means of orthogonal experiment method to develop a new kind of high efficiency sacrificial anode. Results showed that the effect of Mg and Zn on the current efficiency was greater than that of In and Ti, and the influence trend of the change of each element content on the current efficiency was different. Mg content was the main factor influencing anode corrosion uniformity, which formed a second phase in the aluminum alloy anode, leading to changes in the local surface potential, and then forming a local micro - battery, eventually, the local corrosion of the anode surface was accelerated. Ti element played a role in the grain refinement. If the two contents of Mg and Ti were not properly matched, it would cause serious local segregation, causing the anode falling - block problem. Based on the range analysis of orthogonal test, the optimal combination of sacrificial anode formulation was 0.5%Mg - 4%Zn - 0.035%In - 0.045%Ti, which could significantly increase the current efficiency of the sacrificial anode and improve the dissolution uniformity of the sample.http://www.mat-pro.com/fileup/1001-1560/PDF/20210516.pdfseparator; sacrificial anode; current efficiency; solubility |
| spellingShingle | XI Yun - tao, CHEN Wen - hao, LIU Rui, HE Jian - guo, XU Shan - na Development of a New Type of Aluminum - Based Sacrificial Anode for Separator Cailiao Baohu separator; sacrificial anode; current efficiency; solubility |
| title | Development of a New Type of Aluminum - Based Sacrificial Anode for Separator |
| title_full | Development of a New Type of Aluminum - Based Sacrificial Anode for Separator |
| title_fullStr | Development of a New Type of Aluminum - Based Sacrificial Anode for Separator |
| title_full_unstemmed | Development of a New Type of Aluminum - Based Sacrificial Anode for Separator |
| title_short | Development of a New Type of Aluminum - Based Sacrificial Anode for Separator |
| title_sort | development of a new type of aluminum based sacrificial anode for separator |
| topic | separator; sacrificial anode; current efficiency; solubility |
| url | http://www.mat-pro.com/fileup/1001-1560/PDF/20210516.pdf |
| work_keys_str_mv | AT xiyuntaochenwenhaoliuruihejianguoxushanna developmentofanewtypeofaluminumbasedsacrificialanodeforseparator |