Electronic properties of oxide films and pitting susceptibility of type 304 stainless steel

Bianchi, Giuseppe; Cerquetti, A.; Mazza, F.; Torchio, S.

doi:10.1016/s0010-938x(72)80080-5

Cited by 69 publications

(34 citation statements)

References 4 publications

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“…Both processes would favour corrosion. Besides, increased N d has also been experimentally proven to lead to increased probability of pitting nucleation in passive layers gen erated in stainless steel, although in conditions different from those in the present study [20,39]. For stainless steel bars, N d is always lower for specimens man ufactured from the core of the bars than for those specimens of the same corrugated materials (Table 4).…”

Section: Semiconducting Properties Of Passive Layerssupporting

confidence: 41%

“…Acceptor density (N a ) in Cr oxide was calculated from the slopes in the linear areas of the Mott Schottky plots at low E. The penetration of aggressive ions with Cl À is inhibited in p type oxides [35]. It has been said that pitting corrosion decreases as N a increases in the oxides [20]. Table 4 shows that greater N a tends to be observed for passive layers on corrugations than on bar core.…”

Section: Semiconducting Properties Of Passive Layersmentioning

confidence: 99%

“…The stoichiometry of passive layers on stainless steels has been previously evaluated using Mott Schottky analysis [20]. This approach allows to obtain information about the type of stoichiometric deviation of the oxi des that form the passive layer under different circumstances, as well as to quantify the amount of defects.…”

Section: Introductionmentioning

confidence: 99%

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Influence of the forming process of corrugated stainless steels on their corrosion behaviour in simulated pore solutions

et al. 2012

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a b s t r a c tStainless steels are formed by either hot working (HW) or cold working (CW) when used as reinforcement for concrete structures. The influence of the forming process on the corrosion behaviour is analyzed in depth in the present work. CW and HW corrugated bars of austenitic AISI 304L and 316L, and duplex SAF 2205 grades are studied. The electrochemical behaviour of the corrugated surface and the core of these materials are characterized by Mott Schottky analysis and polarization curves. Tests are carried out in both carbonated and non carbonated Ca(OH) 2 solutions. The microstructure and local mechanical properties of these materials are also analysed by means of universal hardness (UH) measurements to complete available information. The results prove that the surface of corrugated bars is far more likely to suffer corrosion than the core of the same material. The corrosion probability and the morphology of the attack induced in corrugated surfaces by anodic polarization clearly differ in HW and CW bars.

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Section: Semiconducting Properties Of Passive Layerssupporting

confidence: 41%

Section: Semiconducting Properties Of Passive Layersmentioning

confidence: 99%

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Influence of the forming process of corrugated stainless steels on their corrosion behaviour in simulated pore solutions

et al. 2012

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“…Altogether, the n-type oxide film is higher susceptible to pitting corrosion than its p-type film. 14,15 Therefore, the passive film formed on CG70 as seen in figure 2 and 3, is a p-type semiconductor without corporation with Cl -in the second stage and instead Eq. high.…”

Section: Resultsmentioning

confidence: 99%

Improved Corrosion Resistance of Nanostructured Copper Deposited by Eb-PVD in Acidic Media

Saremi

Yeganeh

2012

Int. J. Mod. Phys. Conf. Ser.

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Electron Beam-Physical Vapor Deposition (EB-PVD) is being used in coating component for many applications such as electronic industry for producing nanostructures and ICs coatings. In this work, nanostructured copper was deposited on glass using EB-PVD technique. Surface and elemental characteristics of EB-PVD coatings investigated and evidenced corrosion resistance of nanostructured coatings produced by this technique are higher than Cu sheet in chloride media.

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“…It has been reported that the high temperature oxide film produced during soldering and stress relieving operations has reduced localized corrosion resistance. Bianchi et al [1] observed that there is a close relationship between susceptibility to pitting and electronic properties of the oxide film produced at lower temperature. The n-type semiconductor oxides are more susceptible to pitting than their p-type counter parts.…”

Section: Introductionmentioning

confidence: 98%

Pitting Corrosion of Some Stainless Steel Alloys Preoxidized at Different Conditions

Mahmoud¹,

Ahmed²

2007

Port. Electrochim. Acta

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The pitting corrosion of some stainless steel alloys (preoxidized at different conditions) in 3.5% NaCl solution was studied. The alloys are: one ferritic (15.05% Cr) (alloy1) and two austenitic stainless steel alloys (17.9% Cr,7.08% Ni) (alloy2) and (20.45% Cr, 8.3% Ni) (alloy3). Potentiodynamic anodic polarization and galvanic current-time measurements were used in these investigations. The susceptibility of the alloys to pitting corrosion decreases with the increase of chromium content of the alloy and with the presence of nickel in the alloy. The preoxidation of the alloys in different media improves their resistance to pitting corrosion in NaCl solution. The resistance to pitting corrosion for the investigated alloy increases according to the order: no oxidation < oxidation in air < oxidation in molten alkali nitrates < oxidation in molten alkali carbonates. This resistance to pitting corrosion may be due to the formation of a protective oxide film on the alloys' surface. The composition of this film greatly depends on the chemical composition of the alloy, on the condition of the preoxidation process, and on the temperature.

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Electronic properties of oxide films and pitting susceptibility of type 304 stainless steel

Cited by 69 publications

References 4 publications

Influence of the forming process of corrugated stainless steels on their corrosion behaviour in simulated pore solutions

Influence of the forming process of corrugated stainless steels on their corrosion behaviour in simulated pore solutions

Improved Corrosion Resistance of Nanostructured Copper Deposited by Eb-PVD in Acidic Media

Pitting Corrosion of Some Stainless Steel Alloys Preoxidized at Different Conditions

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