Comparative Study of the Effect of Temperature on the Corrosion Behaviour of 2205 Duplex Stainless Steel and 316 Austenitic Stainless Steel in Acidic Chloride Environment

Olaseinde, Oluwatoyin Adenike

doi:10.4236/ampc.2015.55019

Cited by 3 publications

(1 citation statement)

References 5 publications

(6 reference statements)

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“…One study showed that R 1 indicates the stability of the passive film and R ct denotes the charge transfer resistance, which means larger R 1 and R ct indicate better coating corrosion resistance [40]. CPE is used to replace the capacitor in the circuit to compensate the influence of the surface uniformity of the coatings [41]. The impedance of the CPE is expressed by the formula below:…”

Section: Eis Analysismentioning

confidence: 99%

Effect of Ni Addition on the Corrosion Resistance of NiTi Alloy Coatings on AISI 316L Substrate Prepared by Laser Cladding

Feng

2021

Coatings

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In this paper, an equiatomic NiTi (55NiTi) alloy powder was mixed with pure Ni powder to prepare laser cladding coatings on a 316L stainless steel substrate to study the effect of Ni addition on the microstructure and corrosion resistance of the coatings. The microstructure and phase composition of the coatings were analyzed using a scanning electron microscope (SEM) with configured energy-dispersive spectrometer (EDS) and X-ray diffractometer (XRD). OCP (open-circuit potential), PD (potentiodynamic polarization) and EIS (electrochemical impedance spectroscopy) experiments were conducted by a Gamry electrochemical workstation, and corresponding eroded morphologies were observed to evaluate the coating’s anti-corrosion performance. The addition of Ni led to fine and uniform dendrites and dense microstructure under the metallurgical microscope, which were beneficial for the formation of the passive film mainly consisting of titanium dioxide (TiO2). The results show that the pitting potential of the 55NiTi + 5Ni coating was 0.11 V nobler than that of the 55NiTi coating, and the corrosion current density was less than half that of the 55NiTi coating. The corrosion initiated preferentially at the interfaces of dendrites and inter-dendritic areas, then spread first to dendrites rather than in the inter-dendritic areas.

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Section: Eis Analysismentioning

confidence: 99%

Effect of Ni Addition on the Corrosion Resistance of NiTi Alloy Coatings on AISI 316L Substrate Prepared by Laser Cladding

Feng

2021

Coatings

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Effect of rare earth metals on passivation behavior of UNS S31803 duplex stainless steel in sulfuric acid solution

Liu,

Ju,

Chen

2024

Construction and Building Materials

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Influence of high temperature on corrosion behavior of 304 stainless steel in chloride solutions

Ahmed

2016

AIP Advances

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Despite the excellent performance of stainless steel in diverse application, there are media of exposure may accelerate failure of several stainless steel alloys. The possibility of this failure has to be examined by measuring the effective parameters that may result in corrosion at different rates. The present study has been conducted to examine the effect of exposing specimens of 304 stainless steel to 0.5, 1.0, 1.5 and 2.0 M chloride concentration and 70, 80, and 90 °C. Electrochemical technique of measuring the potentials and currency of the examined system has been used to collect the corrosion data. Microstructure of the specimens is examined using Scanning Electron Microscopy and X- Ray Diffraction. Both of these tests revealed no serious phase change due to exposure even at severe conditions. The potentials gained show significant effect of the operation conditions.

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Comparative Study of the Effect of Temperature on the Corrosion Behaviour of 2205 Duplex Stainless Steel and 316 Austenitic Stainless Steel in Acidic Chloride Environment

Cited by 3 publications

References 5 publications

Effect of Ni Addition on the Corrosion Resistance of NiTi Alloy Coatings on AISI 316L Substrate Prepared by Laser Cladding

Effect of Ni Addition on the Corrosion Resistance of NiTi Alloy Coatings on AISI 316L Substrate Prepared by Laser Cladding

Effect of rare earth metals on passivation behavior of UNS S31803 duplex stainless steel in sulfuric acid solution

Influence of high temperature on corrosion behavior of 304 stainless steel in chloride solutions

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