Results 161 to 170 of about 11,024 (183)
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Materials and Corrosion, 2022
AbstractIn this study, micro‐galvanic corrosion of SAF 2205 duplex stainless steel (DSS) annealed at different temperatures with different phase ratios (α/γ) in a 1 M H2SO4 + 1 M NaCl solution is analyzed by zero resistance ammeter (ZRA), immersion and numerical simulation model.
Xinfeng Cao, Xiaojun Hu
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AbstractIn this study, micro‐galvanic corrosion of SAF 2205 duplex stainless steel (DSS) annealed at different temperatures with different phase ratios (α/γ) in a 1 M H2SO4 + 1 M NaCl solution is analyzed by zero resistance ammeter (ZRA), immersion and numerical simulation model.
Xinfeng Cao, Xiaojun Hu
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Electrochimica Acta, 2016
Abstract A finite element method model has been elaborated aiming at a deeper insight into the influence of microstructure on micro-galvanic corrosion of Al alloys. The model considers a dynamic corroding surface and takes into account kinetic data from local electrochemical reactions, transport of O 2 and ionic species (e.g., Al 3+ , H + , Cl ...
Litao Yin +3 more
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Abstract A finite element method model has been elaborated aiming at a deeper insight into the influence of microstructure on micro-galvanic corrosion of Al alloys. The model considers a dynamic corroding surface and takes into account kinetic data from local electrochemical reactions, transport of O 2 and ionic species (e.g., Al 3+ , H + , Cl ...
Litao Yin +3 more
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The Special Role of Anodic Second Phases in the Micro-galvanic Corrosion of EW75 Mg Alloy
Electrochimica Acta, 2016Abstract It is well known that second phases act as micro-cathodes in the corrosion of traditional Mg alloys. However, the effect of second phases on the corrosion behavior of Mg-rare earth (RE) alloys is ambiguous in view of the second phases consisting of Mg and more active RE elements. The role of second phases in the corrosion of cast EW75 (Mg–5Y–
Jinhui Liu +5 more
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Effect of anodic T phase on surface micro-galvanic corrosion of biodegradable Mg-Zn-Zr-Nd alloys
Applied Surface Science, 2018Abstract A complete understanding of the role of Mg-Zn-Nd (T) phase in surface micro-galvanic corrosion of Mg alloys has not been fully developed. Therefore, the microstructure evolution and corrosion behavior in simulated body fluid (SBF) of Mg-2Zn-0.6Zr-xNd alloys (x = 0, 0.2, 0.6 and 1 wt%) were investigated. It was found that the MgZn phase in Mg-
Changhong Cai +3 more
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Electrochimica Acta, 2019
Abstract This work is a further step to develop a finite element model to simulate localized corrosion of aluminum alloys driven by micro-galvanic effects. The focus herein is to explore the effect of density (porosity and tortuosity) of Al(OH)3 precipitates generated both on the electrode surface and in the liquid phase.
Litao Yin +5 more
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Abstract This work is a further step to develop a finite element model to simulate localized corrosion of aluminum alloys driven by micro-galvanic effects. The focus herein is to explore the effect of density (porosity and tortuosity) of Al(OH)3 precipitates generated both on the electrode surface and in the liquid phase.
Litao Yin +5 more
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Micro-galvanic Corrosion of Cu/Ru Couple in KIO4 Solution
2017This chapter focuses on the study of micro-galvanic corrosion of the Cu/Ru couple in KIO4 solution. Practical nobility across the Cu/Ru interface was evaluated by Volta potential mapping, and the morphological changes were monitored by in situ atomic force microscopy measurement during exposure in a KIO4 solution.
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Materials Characterization, 2018
Abstract The corrosion behavior of lath bainitic and granular bainitic steels in 0.01 mol/L NaCl solution was studied by SEM and TEM observation, electrochemical monitoring and weight loss test. The results indicate that the micro galvanic couple forms between the steel matrix and the secondary phase, which causes non-uniform micro corrosion on ...
Jie Wei +5 more
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Abstract The corrosion behavior of lath bainitic and granular bainitic steels in 0.01 mol/L NaCl solution was studied by SEM and TEM observation, electrochemical monitoring and weight loss test. The results indicate that the micro galvanic couple forms between the steel matrix and the secondary phase, which causes non-uniform micro corrosion on ...
Jie Wei +5 more
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Journal of Alloys and Compounds, 2019
Abstract The relative potential difference can be treated as an index of local corrosion of alloys. Since local corrosion is driven by the micro-galvanic coupling, which is consist of the micro-constituent phases and the matrix. They present distinct potential difference normally.
Ruiling Jia +5 more
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Abstract The relative potential difference can be treated as an index of local corrosion of alloys. Since local corrosion is driven by the micro-galvanic coupling, which is consist of the micro-constituent phases and the matrix. They present distinct potential difference normally.
Ruiling Jia +5 more
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The role of second phases in the Micro‐Galvanic Corrosion Mechanism of AZ31B Magnesium Alloy
ChemistrySelectAbstract The effect of the second relative on the microgalvanic corrosion of AZ31B alloy was studied. The behavior mechanism of the second phase in corrosion was discussed by adjusting the area ratio of the second phase by heat treatment.
Xiangyu Li +5 more
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2020
Magnesium alloys are of increasing interest in structural applications due to their low-density, moderate specific strength and stiffness, recyclability, and high damping among other properties. However, the wide-scale applicability of magnesium alloys in structural applications has been limited due to many factors including its poor corrosion ...
V. K. Beura +3 more
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Magnesium alloys are of increasing interest in structural applications due to their low-density, moderate specific strength and stiffness, recyclability, and high damping among other properties. However, the wide-scale applicability of magnesium alloys in structural applications has been limited due to many factors including its poor corrosion ...
V. K. Beura +3 more
openaire +1 more source