The effect of H2S on the crevice corrosion of aisi 410 and ca6nm stainless steels in 3.5% nacl solutions

Dawoud, Uthman M.; Vanweele, S. F.; Szklarska‐Śmiałowska, Z.

doi:10.1016/0010-938x(92)90153-t

Cited by 12 publications

(9 citation statements)

References 7 publications

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“…22) Additionally, the E corr and E pp values of AISI 410 measured in 3.5% NaCl solution ranged from À675 to À312 mV and À250 to À100 mV, respectively. [23][24][25] The mechanical strength of alloy D (6Cr) was comparable to that of AISI 410, and alloy D exhibited better elongation than AISI 410. In addition, the E pp value (À25 mV) of alloy D (6Cr) was much higher than that (À250$À100 mV) of AISI 410.…”

Section: Alloymentioning

confidence: 77%

“…The plates obtained after hot rolling were subsequently solution heat-treated at 1200 C for 2 h and then quenched rapidly into room-temperature water. The potentiodynamic polarization curves of the alloys were measured in 3.5% NaCl solution at 23 C by using an EG&G Princeton Applied Research Model 273 galvanostat/ * 1 Graduate Student, National Chiao Tung University * 2 Corresponding author, E-mail: tfliu@cc.nctu.edu.tw; dir.mse93g@nctu.…”

Section: Methodsmentioning

confidence: 99%

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A New Austenitic FeMnAlCrC Alloy with High-Strength, High-Ductility, and Moderate Corrosion Resistance

et al. 2010

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In this study, a new austenitic Fe-28%Mn-9%Al-6%Cr-1.8%C (in mass%) alloy is developed. Because the alloy contains a high density of fine (Fe,Mn) 3 AlC carbides within the austenite matrix, the alloy in the as-quenched condition exhibits an excellent combination of strength and ductility comparable to that of the aged FeMnAlC alloys. In addition, owing to the formation of a layer of Cr and Al oxides in the passive film formed on the alloys, the corrosion potential E corr (À538 mV) and the pitting potential E pp (À25 mV) of the present alloy in 3.5% NaCl solution are considerably higher than the E corr (À920$À789 mV) and E pp (À500$À240 mV) values of the as-quenched and aged FeMnAlC alloys. Whereas the tensile strength of the present alloy is almost the same as that of conventional AISI 410 martensitic stainless steel, the present alloy possesses superior ductility than AISI 410 martensitic stainless steel. Furthermore, in 3.5% NaCl solution, the E pp (À25 mV) of the present alloy is noticeably higher than that (À250$À100 mV) of the conventional AISI 410 martensitic stainless steel. These results indicate that the present alloy in the as-quenched condition can possess high-strength and high-ductility as well as moderate corrosion resistance.

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Section: Alloymentioning

confidence: 77%

Section: Methodsmentioning

confidence: 99%

A New Austenitic FeMnAlCrC Alloy with High-Strength, High-Ductility, and Moderate Corrosion Resistance

et al. 2010

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“…Desulfovibrio desulfuricans DSM 642 is a strain of SRB which can utilise the electrons provided by the lactate oxidation to reduce sulphate to sulphides and nitrate to ammonium [19]. MIC of low alloy steels and stainless steels through SRB has received growing attention over recent decades [1,9,18,[20][21][22][23][24]. It is known that the electroreduction currents of H 2 and O 2 increase in the presence of sulphur layers on the surfaces of metals [19,20].…”

Section: Introductionmentioning

confidence: 99%

“…It is known that the electroreduction currents of H 2 and O 2 increase in the presence of sulphur layers on the surfaces of metals [19,20]. It is also known that small quantities of biogenic sulphur [11] or inorganic sulphur [20] cause a considerable rise in corrosion by pitting [20,[22][23] and crevice corrosion [21] of iron alloys in solutions that contain chloride ions. The aim of this paper is to study the effects that SRB isolated from a natural marine environment and SRB of Desulfovibrio desulfuricans (strain DSM 642) have on the corrosion of AISI 304 stainless steel.…”

Section: Introductionmentioning

confidence: 99%

“…The colonisation process which is initiated in all cases on a homogenous oxide surface free of other corrosion products can be followed. Microbial colonisation is produced, depending on experimental and environmental factors, between 24 and 72 h after exposure of the samples to sea water [22]. In longer exposure time complex biofouling is produced, with irregular distribution and heterogenous microbial flora consisting of bacteria, microalgae, protozoans, deposits of particulate matter of diverse nature and exopolymers (EPS) [29].…”

Section: Introductionmentioning

confidence: 99%

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Study of the electrochemical behaviour of 304 stainless steel in postgate medium in the presence and absence of desulfovibrio desulfuricans

Santana

Hernández

Gonzalez³

2006

Materials and Corrosion

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A comparative study has been undertaken on the behaviour of AISI 304 steel in Postgate medium with and without the presence of Desulfovibrio desulfuricans subspecies desulfuricans bacteria (strain DSM 642). Electrochemical studies were carried out with open circuit potential measurements, linear polarization, electrochemical impedance spectroscopy (EIS) and scanning electronic microscopy (SEM). In Postgate medium without bacteria, and as expected in stainless steels, the formation is observed of a protective surface passive film on the AISI 304 steel. On measuring the corrosion potentials (E corr ), it is noted that the potential tends to rise with the immersion time, and in the impedance graphs an increase is observed in the charge transfer resistance and a higher phase angle with respect to the other systems tested. However, in Postgate medium with Desulfovibrio desulfuricans (strain DSM 642), the tendency of the corrosion potentials (E corr ) is not uniform, though the recorded values are less noble than those for the medium without bacteria. A variation is observed in the properties of the layer of corrosion products in the presence of bacteria as the immersion time advances (due to the effects caused by the formation of corrosion products which gives rise to changes in the corrosion speed).

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ChemInform Abstract: The Effect of H2S on the Crevice Corrosion of AISI 410 and CA6NM Stainless Steels in 3.5% NaCl Solutions.

1992

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The effect of H2S on the crevice corrosion of aisi 410 and ca6nm stainless steels in 3.5% nacl solutions

Cited by 12 publications

References 7 publications

A New Austenitic FeMnAlCrC Alloy with High-Strength, High-Ductility, and Moderate Corrosion Resistance

A New Austenitic FeMnAlCrC Alloy with High-Strength, High-Ductility, and Moderate Corrosion Resistance

Study of the electrochemical behaviour of 304 stainless steel in postgate medium in the presence and absence of desulfovibrio desulfuricans

ChemInform Abstract: The Effect of H2S on the Crevice Corrosion of AISI 410 and CA6NM Stainless Steels in 3.5% NaCl Solutions.

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