Corrosion behavior of supermartensitic stainless steel in aerated and CO2-saturated synthetic seawater

Anselmo, N.; May, J.E.; Mariano, Neide Aparecida; Nascente, P. A. P.; Kuri, S.E.

doi:10.1016/j.msea.2006.04.107

Cited by 83 publications

(44 citation statements)

References 9 publications

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“…Localized pitting corrosion is the most common type of corrosion and difficult to control in marine environment, especially in deep waters, which are characterized by high concentration of chlorides, low O 2 concentration, presence of corrosive gases -such as CO 2 and H 2 S -microorganisms and other dissolved salts 4 . The superior corrosion properties of stainless steels result from the formation of a thin oxide film on surface, called as the passive film 5 .…”

Section: Introductionmentioning

confidence: 99%

“…Once the pites is formed, it can initiate and propagate a crack along the material thickness and lead to a catastrophic failure 8 . The stability of the passive film has a direct impact on pitting resistance 4 , the microstructural characteristics of the alloy alter the properties of the passive film and the pitting resistance, representing a feature of particular interest 9 . Thus, the microstructural changes caused by certain heat treatments applied to stainless steels can result in the formation of surface films that exhibit different protection capabilities to resist to pitting corrosion.…”

Section: Introductionmentioning

confidence: 99%

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Resistance to Pitting Corrosion in Steels Based on the Fe-Cr-Ni-C System

et al. 2017

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This study aimed to investigate the effects of difference in nickel content and the tempering temperatures on the corrosion resistance in 13Cr2Ni0.1C and 13Cr1Ni0.15C steels. Results showed that passive film in 13Cr2Ni0.1C steel is formed more quickly at the lowest and highest tempering temperature (650°C and 750°C) but the lowest tempering temperature (650°C) showed better resistance to corrosion pitting. There was passive film formation and pitting corrosion in all tempering temperatures of the 13Cr1Ni0.15C steel and changes in tempering temperature does not significantly alter polarization curves, showing similar behavior to steel 13Cr2Ni0.1C tempered at 650°C.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Resistance to Pitting Corrosion in Steels Based on the Fe-Cr-Ni-C System

et al. 2017

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“…Mo added to stainless steels was incorporated in the Cr oxide layer in the form of MoO 4 2− , which improved localized corrosion resistance. [22][23][24] For low alloy steel, Schultze et al informed that the favorable effects of Mo appeared after long immersion in seawater. 25) Whereas it was reported that Mo had no effect on the low alloy steel in seawater environment.…”

Section: Introductionmentioning

confidence: 99%

Effect of Molybdenum on the Corrosion of Low Alloy Steels in Synthetic Seawater

et al. 2016

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The alloying effect of Mo on the seawater immersion corrosion for low alloy steel was investigated using weight loss tests and electrochemical impedance spectroscopy (EIS) in seawater. The Mo-containing low alloy steel showed an excellent corrosion resistance by the long immersion test due to the formation of homogeneous rust layer preventing active dissolution. SEM and XPS analyses were conducted to observe cross-sectional images of rust layer and indentify chemical composition of oxide formed on the surface after immersion test. The results revealed that the MoO 4 2− ions which were oxidized from Mo form the compounds which disturb the approach of aggressive ions.

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“…Neste contexto, os aços inoxidáveis supermartensíticos (AISMs) foram introduzidos como uma alternativa prática e econômica aos aços carbono e aços inoxidáveis duplex para aplicações em poços de óleo e gás com condições corrosivas moderadas, pois como possuem melhor resistência à corrosão do que os aços carbono, não necessitam de revestimentos e inibidores e, além disso, seus custos de produção são inferiores aos dos inoxidáveis duplex [1,2].…”

Section: Introductionunclassified

Microestrutura e resistência à corrosão de aços inoxidáveis supermartensíticos soldados por fricção radial

et al. 2014

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Resumo Neste trabalho, tubos de aço inoxidável supermartensítico (AISM) foram soldados por fricção radial (SFR) e suas propriedades de corrosão foram estudadas através de ensaios de polarização anódica em solução de 3,5 % de NaCl e da técnica eletroquímica de reativação potenciocinética de ciclo duplo (DL-EPR Palavras-chave: Aço inoxidável, Soldagem por fricção radial, Microestrutura, Corrosão, Técnicas eletroquímicas. Abstract: In this work, supermartensitic stainless steel pipes were radial friction (RF) welded and their corrosion behavior were studied based on potentiodynamic polarization and double loop -electrochemical potentiokinetic reactivation (DL-EPR) tests. Measurements were performed on samples taken from the base metal (BM), weld interface, and consumable ring (CR

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Corrosion behavior of supermartensitic stainless steel in aerated and CO2-saturated synthetic seawater

Cited by 83 publications

References 9 publications

Resistance to Pitting Corrosion in Steels Based on the Fe-Cr-Ni-C System

Resistance to Pitting Corrosion in Steels Based on the Fe-Cr-Ni-C System

Effect of Molybdenum on the Corrosion of Low Alloy Steels in Synthetic Seawater

Microestrutura e resistência à corrosão de aços inoxidáveis supermartensíticos soldados por fricção radial

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