Evaluation of the corrosion resistance of anodized aluminum 6061 using electrochemical impedance spectroscopy (EIS)
The corrosion resistance of anodized Al 6061 produced by two different anodizing and sealing processes was evaluated using electrochemical impedance spectroscopy (EIS). The scanning electron microscope (SEM) was employed to determine the surface structure and the thickness of the anodized layers. Th...
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| Veröffentlicht in: | Corrosion science 2008-12, Vol.50 (12), p.3569-3575 |
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| container_title | Corrosion science |
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| creator | Huang, Yuelong Shih, Hong Huang, Huochuan Daugherty, John Wu, Shun Ramanathan, Sivakami Chang, Chris Mansfeld, Florian |
| description | The corrosion resistance of anodized Al 6061 produced by two different anodizing and sealing processes was evaluated using electrochemical impedance spectroscopy (EIS). The scanning electron microscope (SEM) was employed to determine the surface structure and the thickness of the anodized layers. The EIS data revealed that there was very little change of the properties of the anodized layers for samples that were hard anodized in a mixed acid solution and sealed in hot water over a 365 day exposure period in a 3.5
wt% NaCl solution. The specific admittance
A
s and the breakpoint frequency
f
b remained constant with exposure time confirming that the hard anodizing process used in this study was very effective in providing excellent corrosion resistance of anodized Al 6061 over extended exposure periods. Some minor degradation of the protective properties of the anodized layers was observed for samples that were hard anodized in H
2SO
4 and exposed to the NaCl solution for 14 days. |
| doi_str_mv | 10.1016/j.corsci.2008.09.008 |
| format | Article |
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wt% NaCl solution. The specific admittance
A
s and the breakpoint frequency
f
b remained constant with exposure time confirming that the hard anodizing process used in this study was very effective in providing excellent corrosion resistance of anodized Al 6061 over extended exposure periods. Some minor degradation of the protective properties of the anodized layers was observed for samples that were hard anodized in H
2SO
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wt% NaCl solution. The specific admittance
A
s and the breakpoint frequency
f
b remained constant with exposure time confirming that the hard anodizing process used in this study was very effective in providing excellent corrosion resistance of anodized Al 6061 over extended exposure periods. Some minor degradation of the protective properties of the anodized layers was observed for samples that were hard anodized in H
2SO
4 and exposed to the NaCl solution for 14 days.</description><subject>A. Aluminum</subject><subject>Applied sciences</subject><subject>B. EIS</subject><subject>B. SEM</subject><subject>C. Oxide coatings</subject><subject>Corrosion</subject><subject>Corrosion environments</subject><subject>Exact sciences and technology</subject><subject>Metals. Metallurgy</subject><subject>Other surface treatments</subject><subject>Production techniques</subject><subject>Surface treatment</subject><issn>0010-938X</issn><issn>1879-0496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9UE1P3TAQtKpW6iv0H_TgC4geEtaxnY9LpQq9tkhIPRQkbpZlb8BPSRy8CRL8evx4iGNPY-3OzHqGsW8CSgGiPt-VLiZyoawA2hK6MsMHthFt0xWguvoj2wAIKDrZ3n5mX4h2AFDlyYbR9tEOq11CnHjs-XKPPHulSPtBQgq02Mnhfmen6MMzep4FY5jWkddQC75SmO44DuiWFN09jsHZgYdxRv-qpPl1Qy7OT_xse_nv-zH71NuB8OsbHrGbX9vriz_F1d_flxc_rwqnpFwKDa7SHWhUIDyo_BDONY3FvteyVuisrZSvWgddIxvbWuXR97J1utGotZdH7PTgO6f4sCItZgzkcBjshHElI3UjtVY6E9WB6PI_KWFv5hRGm56MALNv2OzMoWGzb9hAZzJk2cmbv6WcuU85b6B3bQVdm9uvMu_HgYc57GPAZLIT5m58SLkb42P4_6EXhNyVEg</recordid><startdate>20081201</startdate><enddate>20081201</enddate><creator>Huang, Yuelong</creator><creator>Shih, Hong</creator><creator>Huang, Huochuan</creator><creator>Daugherty, John</creator><creator>Wu, Shun</creator><creator>Ramanathan, Sivakami</creator><creator>Chang, Chris</creator><creator>Mansfeld, Florian</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SE</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>20081201</creationdate><title>Evaluation of the corrosion resistance of anodized aluminum 6061 using electrochemical impedance spectroscopy (EIS)</title><author>Huang, Yuelong ; Shih, Hong ; Huang, Huochuan ; Daugherty, John ; Wu, Shun ; Ramanathan, Sivakami ; Chang, Chris ; Mansfeld, Florian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c433t-50c25905e401d0405e1cc77aeff5364ecaa24d28c09737a8a4dedf38c575e55d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>A. Aluminum</topic><topic>Applied sciences</topic><topic>B. EIS</topic><topic>B. SEM</topic><topic>C. Oxide coatings</topic><topic>Corrosion</topic><topic>Corrosion environments</topic><topic>Exact sciences and technology</topic><topic>Metals. Metallurgy</topic><topic>Other surface treatments</topic><topic>Production techniques</topic><topic>Surface treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huang, Yuelong</creatorcontrib><creatorcontrib>Shih, Hong</creatorcontrib><creatorcontrib>Huang, Huochuan</creatorcontrib><creatorcontrib>Daugherty, John</creatorcontrib><creatorcontrib>Wu, Shun</creatorcontrib><creatorcontrib>Ramanathan, Sivakami</creatorcontrib><creatorcontrib>Chang, Chris</creatorcontrib><creatorcontrib>Mansfeld, Florian</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Corrosion Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Corrosion science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huang, Yuelong</au><au>Shih, Hong</au><au>Huang, Huochuan</au><au>Daugherty, John</au><au>Wu, Shun</au><au>Ramanathan, Sivakami</au><au>Chang, Chris</au><au>Mansfeld, Florian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of the corrosion resistance of anodized aluminum 6061 using electrochemical impedance spectroscopy (EIS)</atitle><jtitle>Corrosion science</jtitle><date>2008-12-01</date><risdate>2008</risdate><volume>50</volume><issue>12</issue><spage>3569</spage><epage>3575</epage><pages>3569-3575</pages><issn>0010-938X</issn><eissn>1879-0496</eissn><coden>CRRSAA</coden><abstract>The corrosion resistance of anodized Al 6061 produced by two different anodizing and sealing processes was evaluated using electrochemical impedance spectroscopy (EIS). The scanning electron microscope (SEM) was employed to determine the surface structure and the thickness of the anodized layers. The EIS data revealed that there was very little change of the properties of the anodized layers for samples that were hard anodized in a mixed acid solution and sealed in hot water over a 365 day exposure period in a 3.5
wt% NaCl solution. The specific admittance
A
s and the breakpoint frequency
f
b remained constant with exposure time confirming that the hard anodizing process used in this study was very effective in providing excellent corrosion resistance of anodized Al 6061 over extended exposure periods. Some minor degradation of the protective properties of the anodized layers was observed for samples that were hard anodized in H
2SO
4 and exposed to the NaCl solution for 14 days.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.corsci.2008.09.008</doi><tpages>7</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | A. Aluminum Applied sciences B. EIS B. SEM C. Oxide coatings Corrosion Corrosion environments Exact sciences and technology Metals. Metallurgy Other surface treatments Production techniques Surface treatment |
| title | Evaluation of the corrosion resistance of anodized aluminum 6061 using electrochemical impedance spectroscopy (EIS) |
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