Corrosion Resistance of 13% Chromium Steels as Influenced by Tempering Treatments

Truman, J. E.

doi:10.1179/000705976798320124

Cited by 35 publications

(5 citation statements)

References 3 publications

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“…5b) to all types of corrosion. 8,13,14 This shaded area can seriously encroach on the domain of the mechanical characteristics of the usual API Grade N 80, and fortuitously, the limit of the sensitization to corrosion may correspond to the same upper limit as that of the reduced-grade API L 80.…”

Section: Use Of Stainless-steel Tubingsmentioning

confidence: 99%

Acid Corrosion in Wells (CO2, H2S): Metallurgical Aspects

Crolet¹

1983

Journal of Petroleum Technology

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To solve the problem of CO 2 corrosion, use of 13% Cr production tubings seems to have rapidly increased, and a quick summary of our own experience is given. The difficulty lies essentially in accurately forecasting when stainless steel will be necessary and when the CO 2 corrosion of standard tubings will remain acceptable.For H 2 S corrosion, the differences between the traditional sulfide stress cracking (SSC) problems and the new stress corrosion cracking (SCC) ones are emphasized.

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Section: Use Of Stainless-steel Tubingsmentioning

confidence: 99%

Acid Corrosion in Wells (CO2, H2S): Metallurgical Aspects

Crolet¹

1983

Journal of Petroleum Technology

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“…The corrosion resistance is also strongly affected by the heat treatment, especially the tempering temperature. A significantly reduced corrosion resistance is caused by the precipitation of carbides during tempering [11]. Energy filtered transmission electron microscopy (EFTEM) was employed to characterize the precipitated carbides and the chromium distribution around these particles in order to clarify the influence of the carbide precipitation and surrounding chromium depletion on the corrosion properties.…”

Section: Introductionmentioning

confidence: 99%

Influence of chromium, molybdenum and cobalt on the corrosion behaviour of high carbon steels in dependence of heat treatment

Peissl¹,

Mori

Leitner

et al. 2006

Materials and Corrosion

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High chromium martensitic steels are designed to provide high corrosion resistance in combination with high strength. Some of these steel grades contain primary carbides for improving the wear resistance, e.g. the steel 440C. The present paper mainly deals with the effect of chemical composition and microstructure on the corrosion properties. Different experimental alloys were produced in the shape of small ingots. The influence of the alloying elements chromium, molybdenum, cobalt, and carbon on the corrosion properties was studied. The results can be summarized as follows: Chromium and molybdenum improve the corrosion resistance, however, only the content of these elements in solid solution in the steel matrix is effective. In case of cobalt the corrosion resistance decreases.The reason is the interaction between cobalt and carbon and its effect on the chromium content in the steel matrix. The calculated pitting resistant equivalent number of high chromium martensitic steels is only limited valid, because there is a major effect of carbide precipitation on the corrosion behaviour. Further investigations were focused on the heat treatment. Especially the effect of the tempering temperature of these steels was studied. The tempering temperature is most relevant for secondary hardening carbide precipitation, which lowers the chromium content of the matrix with detrimental influence on the corrosion properties. The carbide precipitation and chromium distribution was characterized by means of energy filtered transmission electron microscopy (EFTEM).

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“…Nos AISMs, os átomos de C estão completamente dissolvidos na matriz austenítica em temperaturas elevada e este estado é mantido durante a transformação da austenita para martensita pela têmpera. No entanto, durante o tratamento térmico de revenimento, os átomos de C em solução sólida se combinam com os de Cr para formar carbonetos de Cr (do tipo M 23 C 6 ), tanto nos contornos como no interior dos grãos, produzindo, na maioria dos casos, um empobrecimento generalizado de Cr [13][14][15][16][17]. Por esta razão, a estrutura revenida do MB apresenta um maior grau de perda de resistência à corrosão (I r /I a ) em relação às outras regiões da solda SFR (AC e interface de soldagem), que tiveram suas microestruturas transformadas e parte de seus precipitados de carboneto Cr redissolvidos pelo ciclo termomecânico do processo SFR.…”

Section: Resultsunclassified

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 Resistance of 13% Chromium Steels as Influenced by Tempering Treatments

Cited by 35 publications

References 3 publications

Acid Corrosion in Wells (CO2, H2S): Metallurgical Aspects

Acid Corrosion in Wells (CO2, H2S): Metallurgical Aspects

Influence of chromium, molybdenum and cobalt on the corrosion behaviour of high carbon steels in dependence of heat treatment

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

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