Effect of pH on the Corrosion and Repassivation Behavior of TA2 in Simulated Seawater
The effect of pH on the corrosion and repassivation behavior of TA2 in simulated seawater was studied using electrochemical tests, immersion experiments, and surface morphology topology analysis. The results show that E<sub>corr</sub> and R<sub>f</sub> increased while i<su...
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oai:doaj.org-article:22359719d5304861982608dac617eeed2021-11-25T18:13:22ZEffect of pH on the Corrosion and Repassivation Behavior of TA2 in Simulated Seawater10.3390/ma142267641996-1944https://doaj.org/article/22359719d5304861982608dac617eeed2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6764https://doaj.org/toc/1996-1944The effect of pH on the corrosion and repassivation behavior of TA2 in simulated seawater was studied using electrochemical tests, immersion experiments, and surface morphology topology analysis. The results show that E<sub>corr</sub> and R<sub>f</sub> increased while i<sub>pass</sub> and weight loss rate decreased as the pH of simulated seawater increased. The TA2 passive film was determined to be mainly composed of a large amount of TiO<sub>2</sub> and a small amount of TiO. The repassivation function of TA2 can be expressed as <i>E</i> = −0.1375 + 0.0532ln(<i>t</i> − 1.241) for a simulated seawater pH of 8.2. The parameter b, which represents the slope of the potential–time curve during the friction electrode test, was used to evaluate the repassivation behavior of TA2. The increase in pH value was observed to promote the repassivation speed of the passive film, which is beneficial to the corrosion resistance of TA2.Yingxiao ZhangTingting YanLin FanZhiyong LiuLongfei SongXiaogang LiMDPI AGarticleTA2corrosion behaviorrepassivation behaviorsimulated seawater environmentTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6764, p 6764 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
TA2 corrosion behavior repassivation behavior simulated seawater environment Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 |
| spellingShingle |
TA2 corrosion behavior repassivation behavior simulated seawater environment Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Yingxiao Zhang Tingting Yan Lin Fan Zhiyong Liu Longfei Song Xiaogang Li Effect of pH on the Corrosion and Repassivation Behavior of TA2 in Simulated Seawater |
| description |
The effect of pH on the corrosion and repassivation behavior of TA2 in simulated seawater was studied using electrochemical tests, immersion experiments, and surface morphology topology analysis. The results show that E<sub>corr</sub> and R<sub>f</sub> increased while i<sub>pass</sub> and weight loss rate decreased as the pH of simulated seawater increased. The TA2 passive film was determined to be mainly composed of a large amount of TiO<sub>2</sub> and a small amount of TiO. The repassivation function of TA2 can be expressed as <i>E</i> = −0.1375 + 0.0532ln(<i>t</i> − 1.241) for a simulated seawater pH of 8.2. The parameter b, which represents the slope of the potential–time curve during the friction electrode test, was used to evaluate the repassivation behavior of TA2. The increase in pH value was observed to promote the repassivation speed of the passive film, which is beneficial to the corrosion resistance of TA2. |
| format |
article |
| author |
Yingxiao Zhang Tingting Yan Lin Fan Zhiyong Liu Longfei Song Xiaogang Li |
| author_facet |
Yingxiao Zhang Tingting Yan Lin Fan Zhiyong Liu Longfei Song Xiaogang Li |
| author_sort |
Yingxiao Zhang |
| title |
Effect of pH on the Corrosion and Repassivation Behavior of TA2 in Simulated Seawater |
| title_short |
Effect of pH on the Corrosion and Repassivation Behavior of TA2 in Simulated Seawater |
| title_full |
Effect of pH on the Corrosion and Repassivation Behavior of TA2 in Simulated Seawater |
| title_fullStr |
Effect of pH on the Corrosion and Repassivation Behavior of TA2 in Simulated Seawater |
| title_full_unstemmed |
Effect of pH on the Corrosion and Repassivation Behavior of TA2 in Simulated Seawater |
| title_sort |
effect of ph on the corrosion and repassivation behavior of ta2 in simulated seawater |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/22359719d5304861982608dac617eeed |
| work_keys_str_mv |
AT yingxiaozhang effectofphonthecorrosionandrepassivationbehaviorofta2insimulatedseawater AT tingtingyan effectofphonthecorrosionandrepassivationbehaviorofta2insimulatedseawater AT linfan effectofphonthecorrosionandrepassivationbehaviorofta2insimulatedseawater AT zhiyongliu effectofphonthecorrosionandrepassivationbehaviorofta2insimulatedseawater AT longfeisong effectofphonthecorrosionandrepassivationbehaviorofta2insimulatedseawater AT xiaogangli effectofphonthecorrosionandrepassivationbehaviorofta2insimulatedseawater |
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