Selective oxidation of Fe-Cr alloys

Crouch, I.G.; Scully, J.C.

doi:10.1007/bf00603757

Cited by 28 publications

(5 citation statements)

References 11 publications

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“…1͑c͒ Next, we show the effect of oxidation time. 10 They found that the weight gain of 13Cr steel increases linearly with time when oxidized at 650°C in pressure ratio of pH 2 So far, we have shown the results of an oxidation study in a H 2 O/H 2 environment where iron oxides cannot be formed thermodynamically. It is interesting to note that the profiles shown in Figs.…”

Section: A Growth Behavior Of Oxide Filmsmentioning

confidence: 61%

“…Figure 3 shows Fe, Cr, and O depth profiles measured by XPS for the specimens oxidized for 1 h in 10%H 2 is composed of facets with dimensions of around 10 m. After oxidation at 600°C with 10 ppm H 2 O, small nodules are formed on the surface. 10 In the sample oxidized at 700°C, oxide growth varies markedly from facet to facet as shown in Figs. These precipitates are considered to be the ternary compound FeCr 2 O 4 which can form at 600°C when the pressure ratio pH 2 O/pH 2 is larger than 5 ϫ10 Ϫ4 .…”

Section: A Growth Behavior Of Oxide Filmsmentioning

confidence: 96%

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Development of a stainless steel tube resistant to corrosive Cl2 gas for use in semiconductor manufacturing

Ohmi

Yoshida

Matudaira

et al. 1998

Journal of Vacuum Science &Amp; Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena

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Microstructure and corrosion resistance of plasma source ion nitrided austenitic stainless steelIn order to develop a corrosion-free halogen gas delivery system for use in semiconductor manufacturing, Cr 2 O 3 passivation of ferritic and austenitic stainless steels has been investigated. It has been shown that a Cr 2 O 3 layer can be formed on an electropolished ͑EP͒ surface of ferritic 26Cr-1Mo stainless steel by oxidation above 600°C, but excellent corrosion resistance performance to Cl 2 gas can be obtained only by oxidation above 700°C. On the other hand, on the EP surface of austenitic SUS 316L, a corrosion-resistant Cr 2 O 3 layer is not formed by oxidation even up to 800°C.

show abstract

Section: A Growth Behavior Of Oxide Filmsmentioning

confidence: 61%

Section: A Growth Behavior Of Oxide Filmsmentioning

confidence: 96%

Development of a stainless steel tube resistant to corrosive Cl2 gas for use in semiconductor manufacturing

Ohmi

Yoshida

Matudaira

et al. 1998

Journal of Vacuum Science &Amp; Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena

View full text Add to dashboard Cite

show abstract

“…9). In numerous studies [5,13,23,[41][42][43][44][45][46][47][48][49][50][51][52], a phenomenon similar to the effect of water vapor on the growth mechanism of Cr 2 O 3 scale is also observed during the Fig. 11 a SEM microphotograph of the crosssection of the scale on Fe-25Cr after 300 h of oxidation in Ar-H 2 -H 2 O at 1,073 K and b EDS point analysis spectra of the region designated as x oxidation of pure chromium and nickel-based alloys and Ni-Cr.…”

Section: Microstructure and Chemical Composition Of Oxidation Productmentioning

confidence: 99%

Improving the Physicochemical Properties of Fe–25Cr Ferritic Steel for SOFC Interconnects via Y-Implantation and Y2O3-Deposition

et al. 2012

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The present study investigated the role of the reactive-element effect (REE) in improving the corrosion resistance, chromium vaporization rate, and electrical conductivity of the Fe-25Cr ferritic steel modified either by means of yttrium implantation or chemical deposition of yttrium oxide from metaloorganic compound vapors. The corrosion kinetics of the Fe-25Cr steel, both pure and modified, were determined under isothermal conditions in air and an Ar-H 2-H 2 O gas mixture at 1,073 K. A significant improvement in corrosion resistance was observed after surface modification. XRD and SEM-EDS investigations showed that the protective Cr 2 O 3 layer formed the main part of the scale. Measurements of Cr vaporization rate in the air-H 2 O gas mixture revealed that both surface modifications of the steel significantly suppressed the formation of volatile chromium compounds to a large degree. The yttrium-implanted steels oxidized both in air and the Ar-H 2-H 2 O mixture were characterized by the lowest area specific resistance and thereby did not exceed the acceptable ASR level (0.1 X cm 2) for interconnect materials in the temperature range of 973-1,073 K, unlike pure steel and the steel coated with Y 2 O 3 .

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“…The concept was earlier suggested by Wagner (20) for selective oxidation in furnace with controlled temperature and oxygen partial pressure, where noble element is preferentially oxidized to the exclusion of other oxide phases having widely differing free energies of formation. Selective oxidation offers advantages over other protective coating systems as it can be applied to any geometry of components, produces a naturally grown oxide layer with excellent adhesion and can be used in industrial processes (21,22).…”

Section: Introductionmentioning

confidence: 99%

Surface Pretreatment of Alumina Forming Alloy and Its Implication on Cr Evaporation

Aphale¹,

Narayan²,

Hu³

et al. 2018

ECS Trans.

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Selective oxidation of Fe-Cr alloys

Cited by 28 publications

References 11 publications

Development of a stainless steel tube resistant to corrosive Cl2 gas for use in semiconductor manufacturing

Development of a stainless steel tube resistant to corrosive Cl2 gas for use in semiconductor manufacturing

Improving the Physicochemical Properties of Fe–25Cr Ferritic Steel for SOFC Interconnects via Y-Implantation and Y2O3-Deposition

Surface Pretreatment of Alumina Forming Alloy and Its Implication on Cr Evaporation

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