The effect of temperature on the passive film properties and pitting behaviour of a Fe Cr Ni alloy

Carranza, Ricardo M.; Alvarez, M.G.

doi:10.1016/0010-938x(96)00176-x

Cited by 110 publications

(25 citation statements)

References 18 publications

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“…Earlier study showed that an increase in solution temperature lowered the resistance to localized corrosion of Fe-based alloy immersed in Cl ¹ containing solution, being revealed by decrease in pitting potential. [23][24][25] It should be noticed that the material used in the literature [23][24][25] is different from current study. The materials used in the literature [23][24][25] were stainless steel and Fe-Cr-Ni alloy with Cr content higher that 12%, which is necessary for self repassivation.…”

Section: Morphology Characterizationmentioning

confidence: 59%

“…[23][24][25] It should be noticed that the material used in the literature [23][24][25] is different from current study. The materials used in the literature [23][24][25] were stainless steel and Fe-Cr-Ni alloy with Cr content higher that 12%, which is necessary for self repassivation. The temperature increase hinders the stability of the passive film on stainless steel and Fe-Cr-Ni alloy, but the passive film is still on the surface.…”

Section: Morphology Characterizationmentioning

confidence: 59%

“…Fe-based alloy immersed in a Cl ¹ containing solution of higher temperature showed lower resistance to localized corrosion, as revealed by decrease in pitting potential. [23][24][25] It is well known that chloride promotes pitting and the literature presents studies on the corrosion susceptibility of Fe and Fe-based alloys, which depends on the nature of passive film formed on the surface. There have been a number of theories and models proposed to illustrate the pitting corrosion process occurring on stainless steels, aluminium alloys, etc., which could be passivated in the service environment.…”

Section: Introductionmentioning

confidence: 99%

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Study on the Temperature Dependence of Pitting Behaviour of AISI 4135 Steel in Marine Splash Zone

et al. 2015

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The corrosive condition at marine splash zone is detrimental to steel structures of offshore applications. The corrosion at splash zone is the most serious not only for uniformed corrosion but also localized corrosion. Practically, marine structures experience cyclic seasonal temperature change. Temperature acts as an important factor affecting corrosion process. In this paper, the effects of temperature on pitting behavior of a low alloy high strength steel (AISI 4135) in marine splash zone have been investigated using electrochemical techniques and morphology observations. The area of hysteresis loop was greater under seawater film at lower temperatures than that at high temperatures, indicating that the pitting corrosion sensitivity is high at lower temperature. AISI 4135 steel has the potential danger of pitting corrosion in marine splash zone after long exposure.

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Section: Morphology Characterizationmentioning

confidence: 59%

Section: Morphology Characterizationmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

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Study on the Temperature Dependence of Pitting Behaviour of AISI 4135 Steel in Marine Splash Zone

et al. 2015

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“…The presence of heavy metals in the product is not desirable both from an environmental and health viewpoint, especially if the products are intended for human consumption. Although studies had been done on corrosion of various types of materials in the past [9][10][11][12][13], it is also important to quantify the presence of heavy metals in reaction media during hydrothermal treatment process.…”

Section: Introductionmentioning

confidence: 99%

Metal elution from Ni- and Fe-based alloy reactors under hydrothermal conditions

Faisal

Quitain

Urano

et al. 2004

Journal of Hazardous Materials

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“…As SFT simultaneously uses extreme temperatures and pressures, consequently, chemical corrosion increases [17,18]. The corrosion of various types of materials under high temperature and pressure conditions has been investigated intensively [19][20][21][22]. These types of corrosion could be hazardous and their presence in the products is not desirable.…”

Section: Introductionmentioning

confidence: 99%

Catalytic effect of different reactor materials under subcritical water conditions: decarboxylation of cysteic acid into taurine

Faisal

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. In order to understand the influence of reactor materials on the catalytic effect for a particular reaction, the decomposition of cysteic acid from Ni/Fe-based alloy reactors under subcritical water conditions was examined. Experiments were carried out in three batch reactors made of Inconel 625, Hastelloy C-22 and SUS 316 over temperatures of 200 to 300 ℃. The highest amount of eluted metals was found for SUS 316. The results demonstrated that reactor materials contribute to the resulting product. Under the tested conditions, cysteic acid decomposes readily with SUS 316. However, the Ni-based materials (Inconel 625 and Hastelloy C-22) show better resistance to metal elution. It was found that among the materials used in this work, SUS 316 gave the highest reaction rate constant of 0.1934 s−1. The same results were obtained at temperatures of 260 and 300 ℃. Investigation of the Arrhenius activation energy revealed that the highest activation energy was for Hastelloy C-22 (109 kJ/mol), followed by Inconel 625 (90 kJ/mol) and SUS 316 (70 kJ/mol). The decomposition rate of cysteic acid was found to follow the results for the trend of the eluted metals. Therefore, it can be concluded that the decomposition of cysteic acid was catalyzed by the elution of heavy metals from the surface of the reactor. The highest amount of taurine from the decarboxylation of cysteic acid was obtained from SUS 316.

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The effect of temperature on the passive film properties and pitting behaviour of a Fe Cr Ni alloy

Cited by 110 publications

References 18 publications

Study on the Temperature Dependence of Pitting Behaviour of AISI 4135 Steel in Marine Splash Zone

Study on the Temperature Dependence of Pitting Behaviour of AISI 4135 Steel in Marine Splash Zone

Metal elution from Ni- and Fe-based alloy reactors under hydrothermal conditions

Catalytic effect of different reactor materials under subcritical water conditions: decarboxylation of cysteic acid into taurine

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