Surface modification/alloying using intense pulsed electron beam as a tool for improving the corrosion resistance of steels exposed to heavy liquid metals

Engelko, V.; Mueller, Georg; Rusanov, A. E.; Markov, V. G.; Tkachenko, K. I.; Weisenburger, A.; Kashtanov, A. D.; Chikiryaka, A. V.; Jianu, A.

doi:10.1016/j.jnucmat.2011.04.030

Cited by 50 publications

(29 citation statements)

References 19 publications

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“…Fe-Cr-Al-Y) are deposited by plasma spraying and subsequently modified by melting using intense pulsed electron beam processing. The approach is called "GESA-method" where GESA is the abbreviation of the facility German name: "Gepulste ElektronStrahl Anlage" [22,23].…”

Section: Introductionmentioning

confidence: 99%

Stability domain of alumina thermally grown on Fe–Cr–Al-based model alloys and modified surface layers exposed to oxygen-containing molten Pb

Jianu

Fetzer

Weisenburger

et al. 2016

Journal of Nuclear Materials

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The paper gives experimental results concerning the morphology, composition, structure and thickness of the oxide scales grown on Fe-Cr-Al-based bulk alloys during exposure to oxygen-containing molten lead. The results are discussed and compared with former results obtained on Al-containing surface layers, modified by melting with intense pulsed electron beam and exposed to similar conditions. The present and previous results provide the alumina stability domain and also the criterion of the Al/Cr ratio for the formation of a highly protective alumina layer on the surface of Fe-Cr-Al-based alloys and on modified surface layers exposed to molten lead with 10 -6 wt.% oxygen at 400-600°C. The protective oxide scales, grown on aluminaforming Fe-Cr-Al alloys under the given experimental conditions, were transient aluminas, namely, kappa-Al 2 O 3 and theta-Al 2 O 3 .

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Section: Introductionmentioning

confidence: 99%

Stability domain of alumina thermally grown on Fe–Cr–Al-based model alloys and modified surface layers exposed to oxygen-containing molten Pb

Jianu

Fetzer

Weisenburger

et al. 2016

Journal of Nuclear Materials

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“…Austenitic steels 304 L and 316 L have been already used extensively as nuclear structural materials and are among the materials selected for the nuclear systems with Heavy Liquid Metal (HLM), as lead or Lead Bismuth Eutectic (LBE) …”

Section: Introductionmentioning

confidence: 99%

“…The thickness of the layer containing Al (10–30 µm) is around the penetration depth of electrons into the steel. Therefore, by applying the GESA procedure, the microstructural properties of the substrate materials (excepting the superficial layer) do not change, and it is possible to obtain a surface layer with a uniform distribution of Al, of controlled thickness, which is crack‐free and adherent to the substrate …”

Section: Introductionmentioning

confidence: 99%

Study of ceramic‐like aluminum oxide thin films developed using plasma electrolytic oxidation applied on austenitic steels

Andrei

Coaca

Mihalache

et al. 2016

Surface & Interface Analysis

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Austenitic steels 304 L and 316 L are used extensively as nuclear structural materials. The objective of this study is to determine if their corrosion behavior can be improved by developing an Al‐containing surface layer by a complex surface treatment, including substrate modification by growth of oxide layers using anodic oxidation, cyclic voltammetry and autoclaving in water, as well as a micro‐arc oxidation (MAO) treatment in 0.1 M NaAlO2 aqueous solution. The processes and structures obtained by MAO under various experimental conditions were characterized by X‐ray photoelectron spectroscopy, scanning electron microscopy, X‐ray diffraction and energy dispersive X‐ray spectrometry analysis. The corrosion behavior, studied by Tafel potentiodynamic polarization, was correlated to the microstructure and the chemical composition of the surface layers which are strongly dependent on the treatment parameters. An overall description of the electrochemical processes involved in the growth of aluminum coating, the surface properties improvement, together with some consideration about the new materials development for energy technologies are presented. Copyright © 2016 John Wiley & Sons, Ltd.

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“…The world-wide acknowledged solution is to prepare alumina ceramic coatings on the inner surface of stainless-steel pipes, which cannot only guarantee the structure property of pipe systems, but also protect the pipes from the permeation and corrosion of tritium [12].Austenitic 316L steel has already been extensively used as a nuclear structural material and is among the materials selected for nuclear systems with Heavy Liquid Metals (HLM) [5,23] as lead or Lead Bismuth Eutectic (LBE) [24]. The use of HLM raises problems with the compatibility of materials in terms of corrosion and mechanical strength [25,26]. Austenitic steels suffer from severe corrosion attack in lead or LBE melt at temperatures above 500 • C [24].…”

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confidence: 99%

Aluminum Oxide Ceramic Coatings on 316l Austenitic Steel Obtained by Plasma Electrolysis Oxidation Using a Pulsed Unipolar Power Supply

et al. 2020

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AISI 316 steel has good corrosion behavior and high-temperature stability, but often prolonged exposure to temperatures close to 700 °C in aggressive environments (e.g., in boilers and furnaces, in nuclear installations) can cause problems that lead to accelerated corrosion degradation of steel components. A known solution is to prepare alumina ceramic coatings on the surface of stainless steel. The aim of this study is to obtain aluminum oxide ceramic coatings on 316L austenitic steel, by Plasma Electrolysis Oxidation (PEO), using a pulsed unipolar power supply. The structures obtained by PEO under various experimental conditions were characterized by XPS, SEM, XRD, and EDS analyses. The feasibility was proved of employing PEO in NaAlO2 aqueous solution using a pulsed unipolar power supply for ceramic–like aluminum oxide films preparation, with thicknesses in the range of 20–50 μm, and a high content of Al2O3 on the surface of austenitic stainless steels.

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Surface modification/alloying using intense pulsed electron beam as a tool for improving the corrosion resistance of steels exposed to heavy liquid metals

Cited by 50 publications

References 19 publications

Stability domain of alumina thermally grown on Fe–Cr–Al-based model alloys and modified surface layers exposed to oxygen-containing molten Pb

Stability domain of alumina thermally grown on Fe–Cr–Al-based model alloys and modified surface layers exposed to oxygen-containing molten Pb

Study of ceramic‐like aluminum oxide thin films developed using plasma electrolytic oxidation applied on austenitic steels

Aluminum Oxide Ceramic Coatings on 316l Austenitic Steel Obtained by Plasma Electrolysis Oxidation Using a Pulsed Unipolar Power Supply

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