scholarly journals Galvanic Corrosion Between AISI304 Stainless Steel and Carbon Steel in Chloride Contaminated Mortars

Author(s):  
Xingguo Feng ◽  
2011 ◽  
Vol 20 (9) ◽  
pp. 1631-1637 ◽  
Author(s):  
C. F. Dong ◽  
K. Xiao ◽  
X. G. Li ◽  
Y. F. Cheng

2008 ◽  
Vol 50 (3) ◽  
pp. 903-911 ◽  
Author(s):  
Koji Fushimi ◽  
Atsushi Naganuma ◽  
Kazuhisa Azumi ◽  
Yuuzo Kawahara

Author(s):  
Hiroki Kimoto

The influence of flow rate of seawater on the corrosion rate of hot-dipped aluminized steel in seawater was investigated using the following galvanic couples: aluminum/carbon steel, aluminum/Fe-Al alloy, aluminum/stainless steel, Fe-Al alloy/carbon steel, Fe-Al alloy/stainless steel, and carbon steel/stainless steel. The corrosion rate of aluminum in all the couples was greater than that of aluminum not connected with other metals. The corrosion rates increased in the following order: aluminum/carbon steel > aluminum/stainless steel > aluminum/Fe-Al alloy. Aluminum connected with carbon steel had the greatest corrosion rate: seven times of the rate of aluminum that was not connected with other metals. The galvanic corrosion rate of carbon steel is 1.9 to 2.5 times greater than that of carbon steel that is not connected with other metals.


Author(s):  
T. Hodgkiess ◽  
A. Neville

Abstract This paper focuses on the influence and role of galvanic interactions in the corrosion behaviour of thermally-sprayed coated components. Coatings, of different chemistry and applied by various processes (including HVOF) to substrates of carbon steel or stainless steel, have been utilised to facilitate study of galvanic corrosion phenomena both between coating and substrate and also within the coating itself. The experiments have involved the measurement of galvanic currents between separate specimens and also the microscopical examination of galvanic interactions on single specimens. Galvanic corrosion effects, on both a macroscale or microscale, have been observed and the implications of these for coating and coating/substrate integrity are discussed.


2019 ◽  
Vol 27 (05) ◽  
pp. 1950146
Author(s):  
SHUAI HU ◽  
WENFENG JIA ◽  
ZHENYU CHEN ◽  
XINGPENG GUO

Inhibition effect of sodium [Formula: see text]-lauroyl sarcosinate and zinc sulfate on the galvanic corrosion between carbon steel and stainless steel in 1% NaCl solution was investigated. The results of electrochemical measurements revealed that anodic and cathodic inhibitors inhibited galvanic corrosion by reducing the potential difference between the electrodes in two different ways. The values of corrosion potential and corrosion resistance of carbon steel increased after adding sodium N-lauroyl sarcosinate. In contrast, corrosion potential of stainless steel was shifted to the more negative region after adding zinc sulfate. X-ray photoelectron spectroscopy and scanning electron microscopy were applied to investigate the chemical compositions and morphologies of the films.


CORROSION ◽  
2011 ◽  
Vol 67 (8) ◽  
pp. 086001-1-086001-4 ◽  
Author(s):  
P. Rostron

Abstract The potential for galvanic corrosion between carbon steel and duplex (22Cr) stainless steel in impure ethylene glycol (CH2OHCH2OH) is assessed. The temperature dependence of the corrosion is determined, as well as the effect of temperature on the conductivity of dry, wet, and impure wet ethylene glycol. The temperature dependence of the corrosion can be explained by the change in electrical resistance of the glycol with temperature. The authors also show the importance of testing corrosiveness by using the actual working fluid rather than a simulation fluid.


2000 ◽  
Vol 6 (3) ◽  
pp. 273-292
Author(s):  
L. Bertolini ◽  
M. Gastaldi ◽  
Τ. Pastore ◽  
M.P. Pedeferri

Abstract The paper deals with the corrosion resistance of different stainless steels in chloride contaminated and carbonated concrete. Stainless steel reinforcement has a higher corrosion resistance as compared to the normal carbon steel reinforcement; stainless steels can, however, be subject to localized corrosion if the chloride content in the concrete exceeds a certain critical value. This critical value depends on the pH value of the concrete (i.e. carbonated or alkaline concrete), the temperature, the corrosion potential (function of environmental conditions), and the composition and microstructure of the stainless steel. Furthermore, in the rehabilitation of corroding reinforced concrete structures, stainless steel is often used in structures reinforced with normal carbon steel and galvanic coupling can occur. The results of measurements of free corrosion potential, corrosion rate and macrocouple current in reinforced concrete specimens are reported as a function of chloride concentration and humidity. The consequence of coupling with carbon steel reinforcement is also considered.


Sign in / Sign up

Export Citation Format

Share Document