Corrosion of armco iron and model Fe−Cr-Al alloys in oxygen-containing lead melts

Fedirko, V. М.; Eliseeva, O. I.; Kalyandruk, V. I.; Lopushans'kyi, V. A.

doi:10.1007/bf02538517

Cited by 6 publications

(2 citation statements)

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“…Fedirko et al [7] studied the influence of oxygen containing (6 · 10 À3 wt% O) lead on the corrosion of Armco iron, Fe-16Cr and Fe-16Cr-1Al alloys at 650°C under static conditions. They propose a process of propagation of the corrosion similar to ours, but under their conditions, with very high oxygen content in lead, the rehealing process takes place.…”

Section: Discussionmentioning

confidence: 99%

Oxide layer stability in lead–bismuth at high temperature

Martin

Soler

Hernández

et al. 2004

Journal of Nuclear Materials

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Section: Discussionmentioning

confidence: 99%

Oxide layer stability in lead–bismuth at high temperature

Martin

Soler

Hernández

et al. 2004

Journal of Nuclear Materials

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“…Since an affinity of the main steel's components (Fe and Cr) to the oxygen is higher than that of Pb, the melt dissolves and transports the oxygen on the steel surface and the protective oxide layer based on Me 3 O 4 (Me = Fe, Cr) has been formed [14][15][16]. Both oxides are based on magnetite structure: the inner layer is (Fe-and Cr-) enriched oxide (Fe,Cr) 3 O 4 (spinel type), whereas the outer layer is Crdepleted Fe 3 O 4 .…”

Section: Discussion On Mechanism Of Scale Formationmentioning

confidence: 99%

Oxidation/Corrosion Behaviour of ODS Ferritic/Martensitic Steels in Pb Melt at Elevated Temperature

Yas’kiv

Fedirko

2014

International Journal of Nuclear Energy

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Lead-based melts (Pb, Pb-Bi) are considered as candidate coolants and spallation neutron targets due to their excellent thermophysical and nuclear properties. However, the corrosion of structural materials remains a major issue. Oxide dispersion strengthened (ODS) ferritic/martensitic steels are considered for high temperature application for both fission and fusion reactor concepts. The oxidation/corrosion kinetics in a static oxygen-saturated Pb melt at temperature of 550°C as well as the morphology and composition of scales formed on ferritic/martensitic Fe-9Cr-1.5W and ferritic Fe-14Cr-1.5W ODS steels have been investigated. Both materials showed homogeneous multiple, dense scales that consisted of typical combination of Fe3O4as outer sublayer and (Fe,Cr)3O4as inner sublayer. A nonuniform growth of inner oxide sublayers into the metal matrix as well as a good adhesion to the metal substrate is observed. With the prolongation of exposure from 240 to 1000 h, observed scales grow from 35 µm to 45 µm for ODS Fe-9Cr steel and from 40 µm to 60 µm for ODS Fe-14Cr steel with the thinning rates of 0,22 and 0,31 mm/year correspondingly. The mechanism of scales formation is discussed.

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