The corrosion characterization of a ferritic stainless steel with Mo addition in H2SO4 and HCI acid solutions

Demirören, Hülya; Aksoy, M.; Yıldız, Tülay; Buytoz, Soner

doi:10.1134/s2070205109050232

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…It is known that precipitates composed by oxides, carbides or nitrides induce anodic sites formation in the steel microstructure [51][52][53][54][55] Non-metallic inclusions at the matrix structure interface are not only incoherent, but they also exhibit different corrosion potentials than the steel microstructure, thus leading to the formation of microgalvanic couples. Corrosion is initiated at the vicinity of the non-metallic inclusions [56][57][58].…”

Section: -Svet Testsmentioning

confidence: 99%

Global and Local Corrosion of Welded Joints of High-Strength Low-Alloy Automotive Steel

et al. 2021

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Global and local corrosion techniques were used to study the corrosion behaviour of weld joints of a high strength low alloy steel (LNE500), typically employed in the automotive industry, in Brazil. The welded joints were prepared by gas metal arc welding (GMAW). Two welding transfer modes were used in order to obtain different heat inputs (HI): pulsed (PUL) and cold metal transfer (CMT). Local and global corrosion analysis techniques presented complementary information. While the local in-situ analysis (scanning vibrating electrode technique) revealed the weld metal (WM) as the region where corrosion started, conventional electrochemical techniques (Potentiodynamic polarization (PP) and electrochemical impedance spectroscopy (EIS)) revealed a higher corrosion rate in the coarse-grained heat affected zone (CGHAZ), which was preferentially corroded. A superior corrosion resistance of the weld metal obtained using CMT over the PUL transfer mode was revealed by EIS and PP. In addition, the results from CMT and PUL samples show that austenite grain size affects the propagation of the corrosion process. The results are discussed based on microstructural and compositional aspects of the different regions that characterize the welded joints.

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Section: -Svet Testsmentioning

confidence: 99%

Global and Local Corrosion of Welded Joints of High-Strength Low-Alloy Automotive Steel

et al. 2021

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“…[ 26 ] It was already determined that the homogenization treatment improved the corrosion resistance of ferritic SS in H 2 SO 4 and HCl. [ 27 ] The preoxidation is correlated with the onset of breakaway oxidation. This means that under the atmospheric conditions, the pre‐oxidation times increase the corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Improvement of the corrosion characteristics of 1.4713 ferritic steel in 0.1 M sulfuric acid by heat treatment and Al₂O₃–TiO₂ coating

Stevanović¹,

Dimitrijević

Kamberović

et al. 2020

Materials & Corrosion

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This study addresses the influence of heat treatment and alumina coating on the corrosion of EN 1.4713 steel in 0.1 mol dm−3 sulfuric acid. The corrosion characteristics of three different samples are examined using the open circuit potential measurements, Tafel extrapolation, linear polarization resistance, weight‐loss method, and electrochemical impedance spectroscopy. The results showed that the application of the weight‐loss method yielded similar values to the electrochemical method in the first 24 h. A decrease in corrosion rate, in a similar manner, was observed for all three samples. The largest deacceleration was obtained for the alumina/titania‐coated sample. It was obtained that the heat treatment significantly increased the corrosion resistance, but only in the first 24 h. The alumina/titania coating decreases the corrosion rate by approximately 30 times at the beginning of the corrosion exposure and by nearly 300 times after 240 h. This coating could have a significant influence on construction design, which uses ferritic stainless steel as the material.

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Surface Modification of 304 Stainless Steel by Electro-Spark Deposition

Jiao

Peterkin

Félix

et al. 2018

J. of Materi Eng and Perform

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The corrosion characterization of a ferritic stainless steel with Mo addition in H2SO4 and HCI acid solutions

Cited by 6 publications

References 22 publications

Global and Local Corrosion of Welded Joints of High-Strength Low-Alloy Automotive Steel

Global and Local Corrosion of Welded Joints of High-Strength Low-Alloy Automotive Steel

Improvement of the corrosion characteristics of 1.4713 ferritic steel in 0.1 M sulfuric acid by heat treatment and Al₂O₃–TiO₂ coating

Surface Modification of 304 Stainless Steel by Electro-Spark Deposition

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The corrosion characterization of a ferritic stainless steel with Mo addition in H2SO4 and HCI acid solutions

Cited by 6 publications

References 22 publications

Global and Local Corrosion of Welded Joints of High-Strength Low-Alloy Automotive Steel

Global and Local Corrosion of Welded Joints of High-Strength Low-Alloy Automotive Steel

Improvement of the corrosion characteristics of 1.4713 ferritic steel in 0.1 M sulfuric acid by heat treatment and Al2O3–TiO2 coating

Surface Modification of 304 Stainless Steel by Electro-Spark Deposition

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Improvement of the corrosion characteristics of 1.4713 ferritic steel in 0.1 M sulfuric acid by heat treatment and Al₂O₃–TiO₂ coating