Oxidation behavior of stainless steel 430 and 441 at 800°C in single (air/air) and dual atmosphere (air/hydrogen) exposures

Rufner, Jorgen F.; Gannon, Paul; White, Preston; Deibert, Max C.; Teintze, S.; Smith, R. E.; Chen, H.

doi:10.1016/j.ijhydene.2007.12.067

Cited by 123 publications

(65 citation statements)

References 10 publications

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“…Commonly regarded as being essentially composed of Cr 2 O 3 , the thick oxide generated is actually more complex. Silicon oxides and Mn-Cr spinels have been identified by several authors [3][4][5][6][7][8][9][10] but differences have been highlighted in this work. Attempts have then been made to identify elements, phases and their location.…”

Section: Introductionmentioning

confidence: 96%

“…Depending on the application, it may therefore be a better choice because the absence of Ni lowers its price. These alloys are usually studied at lower temperatures [2][3][4] for the nuclear industry and solid oxide fuel cells, but also at 1,100°C for corrosion resistance during hot rolling and annealing processes [5,6]. However, most studies present variations from one to another because of the sensibility of these alloys depending on oxidation parameters.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Oxide Scales Formed on Ferritic Stainless Steel 441 at 1,100 °C under water vapor

et al. 2014

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This study focuses on the characterization of the oxide scales formed after different exposure times in the range of 2.5-20 min. A commercially available ferritic steel grade AISI 441 was exposed to wet argon at 1100°C with 5, 9 and 13% H 2 O. Raman microspectroscopy, XRD, EDS and XPS were used to fully characterize the oxide scale. For all samples exposed for over 4 min, the scale was constituted of three layers in this order: a thin top layer of spinel phases (Fe,Cr,Mn) 3 O 4 with local outgrowths; a second and main layer of Cr 2 O 3 ? (Mn,Cr) 3 O 4 ; and finally a bottom layer of SiO 2 . The uncommon presence of Fe in the top layer was also observed.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Characterization of Oxide Scales Formed on Ferritic Stainless Steel 441 at 1,100 °C under water vapor

et al. 2014

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“…The corrosion resistance of ferritic corrosion resistant steels may be degraded substantially by thermal load during the welding process. Layers of crystallites containing Mn, Cr and Fe, covering a chromium-rich base layer of polycrystalline chromium oxide Cr 2 O 3 have been identified in the corrosion product layer on these steels after they have been subjected to protracted exposition at around 800°C (Rufnera et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Testing of pigmented coatings on thermal sensitised stainless steel

Schmidová

Švanda

Vesely

et al. 2013

Anti-Corrosion Meth & Material

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Purpose -It was the objective of the presented research to verify the capability of pigmented coatings to mitigate the effects of thermal sensitisation of 430 Stainless Steel. Methodology/approach -Experimental weld joints of non-stabilised ferritic corrosion resistant steel type AISI 430 were prepared. Protective coatings in several variants were applied to a number of weldments, subsequently subject to corrosion tests in SO 2 and NaCl. The anticorrosive efficiency of the coatings was evaluated by means of normative visual assessment and metallographic analysis of the mechanism and depth of corrosion damage. Findings -Anticorrosive efficiency of the tested coatings was experimentally established under conditions where differences were identified in structural changes caused by welding, or resulting from mechanical damage to the coating. Differences in the progress of corrosion damage caused by phase changes in the heat-affected zone were established. Practical implications -Tests of anticorrosive efficiency of coatings of selected types provided information about possible reduction in sensitisation of welded non-stabilised steel. The effect of the investigated processes on degradation of anticorrosive resistance was identified. Originality -A specific effect of phase changes accompanying welding on the corrosion mechanism was described and so were the reasons underlying development of corrosion damage at visually identical character of surface damage.

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“…The interconnect material in planar type SOFC should have high electric and thermal conductivity, high oxidation resistance to maintain low electric resistance, as well as have a similar thermal expansion coefficient (TEC) with unit cell and high machinability. The ceramic interconnects such as Sr-doped LaCrO 3 have high thermal and chemical stability. However, ceramic interconnects are not viable commercially for their high material and production cost, which can take about 45% of material cost and 32% of production cost, unless thin coating type interconnect is employed [1].…”

Section: Introductionmentioning

confidence: 99%

Molybdenum effect on oxidation resistance and electric conduction of ferritic stainless steel for SOFC interconnect

Yun

Seo

Jun

et al. 2012

International Journal of Hydrogen Energy

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Oxidation behavior of stainless steel 430 and 441 at 800°C in single (air/air) and dual atmosphere (air/hydrogen) exposures

Cited by 123 publications

References 10 publications

Characterization of Oxide Scales Formed on Ferritic Stainless Steel 441 at 1,100 °C under water vapor

Characterization of Oxide Scales Formed on Ferritic Stainless Steel 441 at 1,100 °C under water vapor

Testing of pigmented coatings on thermal sensitised stainless steel

Molybdenum effect on oxidation resistance and electric conduction of ferritic stainless steel for SOFC interconnect

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