PITTING CORROSION OF DUPLEX STAINLESS STEEL IN CHLORIDE AND BROMIDE IONS CONTAINING SOLUTION

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MARASHI M.A.S.; ABBASI MARYAM; MOAYED M.H.

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Journal: JOURNAL OF SCHOOL OF ENGINEERING Year:2008 | Volume:20 | Issue:1 (METALLUGICAL ENGINEERING ISSUE) Page(s): 33-46

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Title

PITTING CORROSION OF DUPLEX STAINLESS STEEL IN CHLORIDE AND BROMIDE IONS CONTAINING SOLUTION

Author(s)

MARASHI M.A.S. | ABBASI MARYAM | MOAYED M.H. | Issue Writer Certificate

Keywords

PITTING CORROSIONQ3

BROMIDE IONQ3

CHLORIDE IONQ3

DUPLEX STAINLESS STEELQ3

Abstract

Nowadays DUPLEX STAINLESS STEELs are widely used in natural corrosive environment such as sea water. Beside biological complexity of this environment, stainless steels alloy suffer from localized corrosion in sea water due to the presence of chloride and bromide aggressive ions. PITTING CORROSION of a DUPLEX STAINLESS STEEL at the presence of halide ions specially chloride and bromide has been investigated. Potentiodynamic polarization and potentiostaic polarization at applied anodic potentials (150, 300 and 450 mV) in 0.01, 0.1, 1 M NaCl and also constant concentrations of both Cl-+Br- ions at 25 and 45°C were studied. The results revealed that presence of bromide and CHLORIDE IONs have a detrimental effects on PITTING CORROSION. These detrimental effects were appeared in increase on magnitude and lifetime of metastable pitting transients and also lowering pitting potential of the alloy. Morphological observation of metastable and stable pits by Scanning Electron Microscopy (SEM) in bromide containing solution proved the detrimental effect of these ions on PITTING CORROSION of DUPLEX STAINLESS STEELs.

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APA: Copy

MARASHI, M.A.S., ABBASI, MARYAM, & MOAYED, M.H.. (2008). PITTING CORROSION OF DUPLEX STAINLESS STEEL IN CHLORIDE AND BROMIDE IONS CONTAINING SOLUTION. JOURNAL OF SCHOOL OF ENGINEERING, 20(1 (METALLUGICAL ENGINEERING ISSUE)), 33-46. SID. https://sid.ir/paper/22547/en

Vancouver: Copy

MARASHI M.A.S., ABBASI MARYAM, MOAYED M.H.. PITTING CORROSION OF DUPLEX STAINLESS STEEL IN CHLORIDE AND BROMIDE IONS CONTAINING SOLUTION. JOURNAL OF SCHOOL OF ENGINEERING[Internet]. 2008;20(1 (METALLUGICAL ENGINEERING ISSUE)):33-46. Available from: https://sid.ir/paper/22547/en

IEEE: Copy

M.A.S. MARASHI, MARYAM ABBASI, and M.H. MOAYED, “PITTING CORROSION OF DUPLEX STAINLESS STEEL IN CHLORIDE AND BROMIDE IONS CONTAINING SOLUTION,” JOURNAL OF SCHOOL OF ENGINEERING, vol. 20, no. 1 (METALLUGICAL ENGINEERING ISSUE), pp. 33–46, 2008, [Online]. Available: https://sid.ir/paper/22547/en

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