Grain size distribution effects on the corrosion behaviour of materials

Gollapudi, Srikant

doi:10.1016/j.corsci.2012.04.040

Cited by 294 publications

(118 citation statements)

References 23 publications

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“…This is consistent with visual inspection that shows these sections of the surface to remain shiny as opposed to the matte appearance of the CN-S samples after equivalent periods of dissolution Gollapudi [43] suggested that the metal dissolution behavior can be correlated with the grain distribution in a dissolving metal. To test this hypothesis the analysis of grain size distribution for the CN sample is shown in Fig.…”

Section: Scanning Electron Microscopy and Wlim Studiessupporting

confidence: 72%

See 1 more Smart Citation

Electrochemical Dissolution Behavior and the Residue Formation Mechanism of Laboratory Made Carbonyl Nickel

Moula

Szymański

Shobeir³

et al. 2015

Electrochimica Acta

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Section: Scanning Electron Microscopy and Wlim Studiessupporting

confidence: 72%

“…(For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.) small grains are expected to dissolve faster than large grains [43]. Fig.…”

Section: Scanning Electron Microscopy and Wlim Studiesmentioning

confidence: 99%

Electrochemical Dissolution Behavior and the Residue Formation Mechanism of Laboratory Made Carbonyl Nickel

Moula

Szymański

Shobeir³

et al. 2015

Electrochimica Acta

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“…As the corrosion current increases, the mass loss increases and the rate of corrosion becomes faster. Higher corrosion resistance is indicated by a higher corrosion potential [17]. From the analysis of Fig.…”

Section: Resultsmentioning

confidence: 98%

Effects of Molybdenum on the Wear Resistance and Corrosion Resistance of Carbidic Austempered Ductile Iron

Han

Wang

Sun

et al. 2015

Metallogr. Microstruct. Anal.

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The effects of molybdenum on the microstructure, wear resistance, and corrosion resistance of carbidic austempered ductile iron were studied. The results show that the microstructures of as-cast samples are mainly composed of nodular graphite, pearlite and carbides, and the nodularization grade is 2-3 and graphite size is 6-7 magnitude in all samples. With the increase of Mo content, the amount of nodular graphite decreases, but the pearlite and carbides increase. The microstructures of all heattreated samples mainly consist of nodular graphite, acicular ferrite, retained austenite, and a certain number of carbides. As the molybdenum content increases, the quantity of retained austenite and carbides increases, the acicular ferrite becomes finer, and the wear resistance and corrosion resistance increased. When the concentration of molybdenum reaches 0.570 wt%, the average wear weight loss decreased to 0.218 mg/m, the corrosion potential reached to -0.5626 V, and the corrosion current density decreased to 6.361 9 10 -8 A/cm 2 .

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“…In addition, the grain size variation between the thicknesses was 4 μm (4x10 3 nm) maximum. According to the literature [28][29][30] these grain sizes have similar electrochemical behaviour. On the other hand, it is reasonable to suppose that the difference in grain sizes, between 430A and 430E steels, would have an influence on the result of potentiodynamic polarization; Aghuy et al 30 showed that grain size does not have a significant influence on the potential of pitting in stainless steel using the same electrolytic solution as in the present study (3.5% NaCl).…”

Section: Influence Of the Crystallographic Texture On The Corrosion Rmentioning

confidence: 99%

The Influence of Crystallographic Texture and Niobium Stabilisation on the Corrosion Resistance of Ferritic Stainless Steel

2017

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The objective of this work is to investigate the influence of the crystallographic texture on the corrosion resistance of 16% Cr ferritic stainless steel. Samples of ASTM S43000 ferritic stainless steel, both niobium-stabilised and non-stabilised, were used. The samples were subjected to crystallographic characterisation (EBSD) and analysed using an inverse pole figure (IPF) and a crystalline orientation distribution function (CODF). The samples also underwent anodic potentiodynamic polarisation tests (deaeration by high-purity argon gas) in 3.56% NaCl and 1N H 2 SO 4 solutions, and the surface was examined by SEM after the tests. The results showed a clear influence of the crystallographic texture on the corrosion resistance. The niobium decreases the amount of the preferred orientation and thus the influence of the texture on the corrosion resistance, although the corrosion resistance of the stainless steel is increased as niobium carbides are formed.

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Grain size distribution effects on the corrosion behaviour of materials

Cited by 294 publications

References 23 publications

Electrochemical Dissolution Behavior and the Residue Formation Mechanism of Laboratory Made Carbonyl Nickel

Electrochemical Dissolution Behavior and the Residue Formation Mechanism of Laboratory Made Carbonyl Nickel

Effects of Molybdenum on the Wear Resistance and Corrosion Resistance of Carbidic Austempered Ductile Iron

The Influence of Crystallographic Texture and Niobium Stabilisation on the Corrosion Resistance of Ferritic Stainless Steel

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