The development of Cr2O3 scales on iron-chromium alloys containing reactive elements

Wei, Feng; Stott, F.H.

doi:10.1016/0010-938x(89)90057-7

Cited by 59 publications

(7 citation statements)

References 41 publications

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“…This problem together with the high temperature resistance has made ferritic alloys the most used materials. 9 Ferritic alloys containing 5-10% Al produce an Al 2 O 3 scale by thermal [14][15][16] or chemical 17 treatments that serves to anchor the catalytic support coating.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Al2O3/Al monoliths by anodisation of aluminium as structured catalytic supports

2003

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Section: Introductionmentioning

confidence: 99%

Preparation of Al2O3/Al monoliths by anodisation of aluminium as structured catalytic supports

2003

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“…During oxidation, chromium and iron were drawn from the inner of the alloy, resulting in the internal porosity observed [42] and the outer growth of the iron oxides, which gradually filled the cracks.…”

Section: Discussionmentioning

confidence: 98%

Behaviour of alumina-coated 304L steel in a Waste-to-Energy plant

Goutier

Valette

Vardelle

et al. 2011

Surface and Coatings Technology

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“…clearly improve the oxidation behaviour of chromia-and alumina-forming alloys [6][7]. Several explanations are given about this effect, usually called reactive element effect (REE), namely a modification of the diffusion mechanisms, a reduction of vacancies condensation at the internal interface, a formation of reactive element oxide inclusions trapping alloy impurities [8][9][10]. In this work, thermal treatment was carried out in order to study the influence of implanted yttrium on the oxide scale adherence on 410 steel specimens oxidized at 1123K.…”

Section: Introductionmentioning

confidence: 99%

Surface modifications of AISI 420 stainless steel by low energy Yttrium ions

Nassisi

Side

Turco

et al. 2018

EPJ Web of Conferences

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Abstract. In this work, we study surface modifications of AISI 420 stainless steel specimens in order to improve their surface properties. Oxidation resistance and surface micro-hardness were analyzed. Using an ion beam delivered by a Laser Ion Source (LIS) coupled to an electrostatic accelerator, we performed implantation of low energy yttrium ions on the samples. The ions experienced an acceleration passing through a gap whose ends had a potential difference of 60 kV. The gap was placed immediately before the samples surface. The LIS produced high ions fluxes per laser pulse, up to 3x10 11 ions/cm 2 , resulting in a total implanted flux of 7x10 15 ions/cm 2 . The samples were characterized before and after ion implantation using two analytical techniques. They were also thermally treated to investigate the oxide scale. The crystal phases were identified by an X-ray diffractometer, while the micro-hardness was assayed using the scratch test and a profilometer. The first analysis was applied to blank, implanted and thermally treated sample surface, while the latter was applied only to blank and implanted sample surfaces. We found a slight increase in the hardness values and an increase to oxygen resistance. The implantation technique we used has the advantages, with respect to conventional methods, to modify the samples at low temperature avoiding stray diffusion of ions inside the substrate bulk.

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The development of Cr2O3 scales on iron-chromium alloys containing reactive elements

Cited by 59 publications

References 41 publications

Preparation of Al2O3/Al monoliths by anodisation of aluminium as structured catalytic supports

Preparation of Al2O3/Al monoliths by anodisation of aluminium as structured catalytic supports

Behaviour of alumina-coated 304L steel in a Waste-to-Energy plant

Surface modifications of AISI 420 stainless steel by low energy Yttrium ions

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