Effect of aluminum on the corrosion resistance of low-alloy steel in 10 wt% sulfuric acid solution

2011 ◽  
Vol 63 (11) ◽  
pp. 1004-1010 ◽  
Author(s):  
N. D. Nam ◽  
W. C. Kim ◽  
J. G. Kim
Keyword(s):  
Corrosion Resistance ◽  
Sulfuric Acid ◽  
Acid Solution ◽  
Alloy Steel ◽  
Sulfuric Acid Solution ◽  
Low Alloy Steel

Effect of cobalt on the corrosion resistance of low alloy steel in sulfuric acid solution

2011 ◽  
Vol 53 (11) ◽  
pp. 3576-3587 ◽  
Author(s):  
Keon Ha Kim ◽  
Seung Hwan Lee ◽  
Nguyen Dang Nam ◽  
Jung Gu Kim
Keyword(s):  
Corrosion Resistance ◽  
Sulfuric Acid ◽  
Acid Solution ◽  
Alloy Steel ◽  
Sulfuric Acid Solution ◽  
Low Alloy Steel

Fabrication and Corrosion Properties of Iron Aluminum Alloy/Steel Laminated Composite Prepared by Clad Rolling

2007 ◽  
Vol 539-543 ◽  
pp. 866-871 ◽  
Author(s):  
Naoya Masahashi ◽  
M. Oku ◽  
Sadao Watanabe ◽  
Shuji Hanada
Keyword(s):  
Corrosion Resistance ◽  
Sulfuric Acid ◽  
Acid Solution ◽  
Alloy Steel ◽  
Sulfuric Acid Solution ◽  
Laminated Composite ◽  
Al Alloy ◽  
Aluminium Content ◽  
Oxidation Treatment ◽  
Crmo Steel

The laminated composite of Fe–Al alloy and CrMo steel was fabricated by clad rolling to provide additional properties to the steel such as corrosion resistance, strength, and light weight. Three layered composite consisting of alloy/steel/alloy was succesfully fabricated using the process condition to satisfy the criteria for simultaneous deformation of different materials. The fabricated composite could be cold rolled to 120 μm thickness (99.8 % reduction), and wound to a coil without damage. The corrosion resistance of the composite in a sulfuric acid solution was comparable to that of monolithic CrMo steel, and it depends on the aluminium content of the Fe–Al alloy. The aluminium content dependence of the corrosion behavior is explained by the corrosion potential (Ecorr) of the Fe–Al alloy derived from the polarization curves in the solution. In order to improve the corrosion resistance of the composite, pre-oxidation treatment was conducted to form Al2O3 layer to protect the substrate. Analyses by XPS and SIMS show that the Al2O3 oxide fraction increases with the oxidization temperature and Al content of the alloy. The pre-oxidation treatment improved the corrosion resistance of the composite in a sulfuric acid solution. It is concluded that the effect of oxidation on the corrosion resistance is due to the formation of Al2O3 oxide and the Al2O3 fraction in the oxides.

scholarly journals Corrosion Behavior of AA 1100 Anodized in Gallic-Sulfuric Acid Solution

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 405
Author(s):  
Marlon L. Mopon ◽  
Jayson S. Garcia ◽  
Dexter M. Manguerra ◽  
Cyril John C. Narisma
Keyword(s):  
Corrosion Resistance ◽  
Sulfuric Acid ◽  
Acid Solution ◽  
Gallic Acid ◽  
Acid Concentration ◽  
Sulfuric Acid Solution ◽  
Current Density ◽  
Electrochemical Impedance ◽  
Anodized Aluminum ◽  
The Common

Sulfuric acid anodization is one of the common methods used to improve corrosion resistance of aluminum alloys. Organic acids can be added to the sulfuric acid electrolyte in order to improve the properties of the anodized aluminum produced. In this study, the use of gallic acid as an additive to the sulfuric acid anodization of AA1100 was explored. The effect of varying anodization current density and gallic acid concentration on the properties of anodized aluminum samples was observed using electrochemical impedance spectroscopy, linear polarization, and scanning electron microscopy. It was observed that the corrosion resistance of samples anodized in gallic-sulfuric acid solution at 10 mA·cm−2 is lower than samples anodized in sulfuric acid. It was also observed that higher anodization current density can lead to lower corrosion resistances for aluminum samples anodized in gallic-sulfuric acid solution. However, samples anodized at 5 mA·cm−2 and at a gallic acid concentration of 5 g·L−1 showed better corrosion performance than the samples anodized in sulfuric acid only. This suggests that the use of low amounts of gallic acid as an additive for sulfuric acid anodization can lead to better corrosion resistances for anodized aluminum.

Erosion–corrosion resistance of various stainless steel grades in high-temperature sulfuric acid solution

Wear ◽  
2016 ◽  
Vol 364-365 ◽  
pp. 10-21 ◽  
Author(s):  
M. Lindgren ◽  
S. Siljander ◽  
R. Suihkonen ◽  
P. Pohjanne ◽  
J. Vuorinen
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Sulfuric Acid ◽  
High Temperature ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Erosion Corrosion ◽  
Steel Grades
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