✦ LIBER ✦

An investigation of the corrosion inhibition of pure aluminum in neutral and acidic chloride solutions

✍ Scribed by L. Garrigues; N. Pebere; F. Dabosi

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 729 KB
Volume: 41
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(95)00472-6

No coin nor oath required. For personal study only.

✦ Synopsis

This work is devoted to the corrosion inhibition of pure aluminum by 8-hydroxy-quinoline (8-HQ). In neutral solutions, steady-state current-voltage curves and electrochemical impedance measurements show that the passive alumina layer is strengthened, particularly for long immersion times. The formation of a complex aluminum chelate explains the electrochemical results. Surface analysis indicates that in the presence of E-HQ, the oxide film is very thin; the adsorption of the organic compound prevents the adsorption of chloride ions and the destruction of the aluminum oxide layer.

In acidic solutions, 8-HQ does not modify the corrosion mechanism of aluminum. This result is explained by the solubility of the aluminum chelate in acidic media. This is confirmed by XPS analysis which also reveals a significant adsorption of the organic molecule on the surface.

📜 SIMILAR VOLUMES

Corrosion of alumina/titanium diboride c

Corrosion of alumina/titanium diboride composites in neutral and acidic chloride solutions

✍ A. Balbo; C. Monticelli; A. Bellosi; A. Pagnoni 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 German ⚖ 318 KB 👁 1 views

This research concerns the study of the corrosion behaviour of monolithic titanium diboride and the composites 50%Al 2 O 3 / 50%TiB 2 (50/50) and 70%Al 2 O 3 /30%TiB 2 (70/30) in 3.5% NaCl solutions, at pH 7 and 3 (adjusted by HCl additions). The test temperature is 45 AE 1 8C. Both electrochemical

The nature of crevice corrosion of alumi

The nature of crevice corrosion of aluminum in chloride solutions

✍ Marianne Baumgärtner; Prof. Dr. H. Kaesche 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 German ⚖ 897 KB

Evaluation of the corrosion inhibition o

Evaluation of the corrosion inhibition of salts of organic acids in alkaline solutions and chloride contaminated concrete

✍ T. Pastore; M. Cabrini; L. Coppola; S. Lorenzi; P. Marcassoli; A. Buoso 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 German ⚖ 901 KB

## Abstract This paper summarizes the results of testing on salts of organic acids for evaluating their use as inhibitors of rebar corrosion in chloride‐contaminated concrete. Initially a screening based on electrochemical tests in alkalinized calcium hydroxide solutions was performed on a number o

EIS study on pitting corrosion of 7150 a

EIS study on pitting corrosion of 7150 aluminum alloy in sodium chloride and hydrochloric acid solution

✍ G. S Peng; K. H. Chen; H. C. Fang; H. Chao; S. Y. Chen 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 German ⚖ 581 KB

## Abstract The pitting corrosion behavior of 7150 aluminum alloy was studied by electrochemical impedance spectroscopy (EIS) in the sodium chloride and hydrochloric acid solution. Based on EIS features and corrosion morphologies as well as corrosion potential, the process of pitting corrosion coul

Investigation on the corrosion inhibitiv

Investigation on the corrosion inhibitive effect of 2H-pyrazole-triazole derivatives in acidic solution

✍ Weihua Li; Xia Zhao; Faqian Liu; Junying Deng; Baorong Hou 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 German ⚖ 443 KB 👁 1 views

## Abstract Four research methods, such as weight loss test, electrochemical techniques, adsorption isotherm, and quantum chemical calculation, were employed in this paper to study the inhibition efficiency (IE) and inhibition mechanism of three 2H‐pyrazole‐triazole derivatives, BHOT, FHOT, and CHO

The corrosion and electrochemical behavi

The corrosion and electrochemical behavior of pure aluminum in additive-containing alkaline methanol–water mixed solutions

✍ J. B. Wang; J. M. Wang; H. B. Shao; X. T. Chang; L. Wang; J. Q. Zhang; C. N. Cao 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 German ⚖ 399 KB

## Abstract The corrosion and electrochemical behavior of aluminum in inhibited and uninhibited 4 M KOH–methanol–water mixed solutions with a methanol/water volume ratio of 3:2 were investigated by means of hydrogen collection, polarization curve, galvanostatic discharge, and electrochemical impeda