In situ investigation of local corrosion at interphase boundary under an electrochemical-atomic force microscope

Fu, Ning; Tang, Xiaodong; Li, D. Y.; Parent, L.; Tian, Harry

doi:10.1007/s10008-014-2601-1

Cited by 15 publications

(15 citation statements)

References 24 publications

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“…However, one of main obstacles that limit the application of AMCs is related to the interface in AMCs, which often serve as a source for corrosion. The interface between the Al matrix and inclusions provides sites for corrosion to occur preferentially 3 4 . Pitting attack is often reported as a major form of corrosion in Al-SiC composites 5 6 .…”

mentioning

confidence: 99%

Interfacial valence electron localization and the corrosion resistance of Al-SiC nanocomposite

Mosleh-Shirazi

Hua

Akhlaghi

et al. 2015

Sci Rep

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Microstructural inhomogeneity generally deteriorates the corrosion resistance of materials due to the galvanic effect and interfacial issues. However, the situation may change for nanostructured materials. This article reports our studies on the corrosion behavior of SiC nanoparticle-reinforced Al6061 matrix composite. It was observed that the corrosion resistance of Al6061 increased when SiC nanoparticles were added. Overall electron work function (EWF) of the Al-SiC nanocomposite increased, along with an increase in the corrosion potential. The electron localization function of the Al-SiC nanocomposite was calculated and the results revealed that valence electrons were localized in the region of SiC-Al interface, resulting in an increase in the overall work function and thus building a higher barrier to hinder electrons in the nano-composite to participate in corrosion reactions.

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mentioning

confidence: 99%

Interfacial valence electron localization and the corrosion resistance of Al-SiC nanocomposite

Mosleh-Shirazi

Hua

Akhlaghi

et al. 2015

Sci Rep

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“…Existing two and more phases in surface have sensitivity to galvanic corrosion in a corrosive media [25]. The fulldensity Cu-10Sn bronze parts produced by selective laser melting (SLM) technique has consist of primary α and δ-Cu41Sn11 phases.…”

Section: Resultsmentioning

confidence: 99%

Investigation of Microstructural, Mechanical and Corrosion Properties of Cu-10Sn Bronze Parts Produced by Selective Laser Melting

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SORUŞBAY

Özbey

et al. 2022

Türk Doğa Ve Fen Dergisi

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In this study, the production of full-density Cu-10Sn bronze parts by selective laser melting (SLM) technique and the examination of microstructural, mechanical and corrosion properties were carried out. Cu-10Sn pre-alloyed powders produced by gas atomization technique were shaped using SLM technique within selected parameters and then microstructural properties were determined. Depending on the microstructural properties, the mechanical and corrosion behaviors were determined. The obtained results were compared with similar bronze materials produced by conventional methods. Different characterization techniques were used for microstructural characterization. The microstructure of the Cu-10Sn alloy was observed to consist of dendritic primary α and δ-Cu41Sn11 phases. According to the mechanical test results of the samples produced at densities of 8.75 g cm-3 at room temperature, the yield strength was measured as 420 MPa, the tensile strength was 578 MPa, the elongation was 32 % and the hardness value was 160.3 HV0.2. For the electrochemical experiments, the corrosion rate of the samples was found to be 4.38 mpy. As a result of the productions and experiments, it was determined that the samples produced by the SLM method provide very good mechanical and corrosion properties compared to the literature.

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“…An AFM with a conductive probe can simultaneously obtain the surface topography and surface potential of the scanned surface. Fu et al [62] studied the local corrosion of high-chromium cast iron in regions at different distances from interphase boundaries using EC-AFM in the contact mode. According to the measured local potential, a decrease in interface potential between carbide and matrix was observed.…”

Section: Intercrystalline Corrosionmentioning

confidence: 99%

Application of Electrochemical Atomic Force Microscopy (EC-AFM) in the Corrosion Study of Metallic Materials

Chen

Qin

et al. 2020

Materials

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Electrochemical atomic force microscopy (EC-AFM), a branch of a scanning probe microscopy (SPM), can image substrate topography with high resolution. Since its inception, it was extended to a wide range of research areas through continuous improvement. The presence of an electrolytic cell and a potentiostat makes it possible to observe the topographical changes of the sample surface in real time. EC-AFM is used in in situ corrosion research because the samples are not required to be electrically conductive. It is widely used in passive film properties, surface dissolution, early-stage corrosion initiation, inhibitor efficiency, and many other branches of corrosion science. This review provides the research progress of EC-AFM and summarizes the extensive applications and investigations using EC-AFM in corrosion science.

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In situ investigation of local corrosion at interphase boundary under an electrochemical-atomic force microscope

Cited by 15 publications

References 24 publications

Interfacial valence electron localization and the corrosion resistance of Al-SiC nanocomposite

Interfacial valence electron localization and the corrosion resistance of Al-SiC nanocomposite

Investigation of Microstructural, Mechanical and Corrosion Properties of Cu-10Sn Bronze Parts Produced by Selective Laser Melting

Application of Electrochemical Atomic Force Microscopy (EC-AFM) in the Corrosion Study of Metallic Materials

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