Digital Holography Study of the Inhibitory Effects of Polyaspartic Acid on the Anodic Dissolution of Inconel® 600
Electrochemical methods were used in conjunction with digital holography to study the effects of an environmentally friendly inhibitor, polyaspartic acid (PASP), on the anodic dissolution of Inconel® 600 in a 0.04 M HCl solution. The pitting inhibition ability was enhanced and the inhibition efficie...
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The Electrochemical Society of Japan
2021-05-01
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doaj-0d6ecdea9b84421a827d847224fd5c832021-09-02T04:50:05ZengThe Electrochemical Society of JapanElectrochemistry2186-24512021-05-0189326727210.5796/electrochemistry.21-00021electrochemistryDigital Holography Study of the Inhibitory Effects of Polyaspartic Acid on the Anodic Dissolution of Inconel® 600Yu SHAO0Jiaojiao QI1Boyu YUAN2Liang LI3Chao WANG4Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal UniversityJiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal UniversityJiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal UniversityJiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal UniversityJiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal UniversityElectrochemical methods were used in conjunction with digital holography to study the effects of an environmentally friendly inhibitor, polyaspartic acid (PASP), on the anodic dissolution of Inconel® 600 in a 0.04 M HCl solution. The pitting inhibition ability was enhanced and the inhibition efficiency increased with the PASP concentration, reaching 84.13 % at 6.66 g L−1 PASP. A digital holograph was used to observe the in situ hydrolysis of M2+ (M = Ni and Fe) near the electrode surface during anodic dissolution and showed the formation of a surface film on the electrode. The inhibitory effects of PASP on Inconel® 600 may be caused by the adsorption of PASP and the formation of a PASP metal complex (PASP-M complex), which may seal defects in the surface film.https://www.jstage.jst.go.jp/article/electrochemistry/89/3/89_21-00021/_pdf/-char/eninconel® 600polyaspartic acidinhibitordigital holography |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yu SHAO Jiaojiao QI Boyu YUAN Liang LI Chao WANG |
spellingShingle |
Yu SHAO Jiaojiao QI Boyu YUAN Liang LI Chao WANG Digital Holography Study of the Inhibitory Effects of Polyaspartic Acid on the Anodic Dissolution of Inconel® 600 Electrochemistry inconel® 600 polyaspartic acid inhibitor digital holography |
author_facet |
Yu SHAO Jiaojiao QI Boyu YUAN Liang LI Chao WANG |
author_sort |
Yu SHAO |
title |
Digital Holography Study of the Inhibitory Effects of Polyaspartic Acid on the Anodic Dissolution of Inconel® 600 |
title_short |
Digital Holography Study of the Inhibitory Effects of Polyaspartic Acid on the Anodic Dissolution of Inconel® 600 |
title_full |
Digital Holography Study of the Inhibitory Effects of Polyaspartic Acid on the Anodic Dissolution of Inconel® 600 |
title_fullStr |
Digital Holography Study of the Inhibitory Effects of Polyaspartic Acid on the Anodic Dissolution of Inconel® 600 |
title_full_unstemmed |
Digital Holography Study of the Inhibitory Effects of Polyaspartic Acid on the Anodic Dissolution of Inconel® 600 |
title_sort |
digital holography study of the inhibitory effects of polyaspartic acid on the anodic dissolution of inconel® 600 |
publisher |
The Electrochemical Society of Japan |
series |
Electrochemistry |
issn |
2186-2451 |
publishDate |
2021-05-01 |
description |
Electrochemical methods were used in conjunction with digital holography to study the effects of an environmentally friendly inhibitor, polyaspartic acid (PASP), on the anodic dissolution of Inconel® 600 in a 0.04 M HCl solution. The pitting inhibition ability was enhanced and the inhibition efficiency increased with the PASP concentration, reaching 84.13 % at 6.66 g L−1 PASP. A digital holograph was used to observe the in situ hydrolysis of M2+ (M = Ni and Fe) near the electrode surface during anodic dissolution and showed the formation of a surface film on the electrode. The inhibitory effects of PASP on Inconel® 600 may be caused by the adsorption of PASP and the formation of a PASP metal complex (PASP-M complex), which may seal defects in the surface film. |
topic |
inconel® 600 polyaspartic acid inhibitor digital holography |
url |
https://www.jstage.jst.go.jp/article/electrochemistry/89/3/89_21-00021/_pdf/-char/en |
work_keys_str_mv |
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