Oxidation of ferritic steels dispersion strengthened with TiO2 and Y2O3 oxides in lead melt
We study the structure and composition of scales formed during the contact of Fe–13Cr–2Motype ferritic steels hardened with oxides TiO 2 and Y 2 O 3 with oxygen-containing (10 −3 mass% O) lead melt at 550°C for 1000 h. It is established that a Fe 3 O 4 – Fe (Fe 1 − x , Cr x ) 2 O 4 two-layer scale f...
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| Veröffentlicht in: | Materials science (New York, N.Y.) N.Y.), 2008-09, Vol.44 (5), p.630-637 |
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| 1. Verfasser: | |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | We study the structure and composition of scales formed during the contact of Fe–13Cr–2Motype ferritic steels hardened with oxides TiO
2
and Y
2
O
3
with oxygen-containing (10
−3
mass% O) lead melt at 550°C for 1000 h. It is established that a Fe
3
O
4
– Fe (Fe
1 −
x
, Cr
x
)
2
O
4
two-layer scale forms. Its upper layer (Fe
3
O
4
) grows in the direction of the melt, and the internal layer (Fe (Fe
1 –
x
, Cr
x
)
2
O
4
) grows in the direction to the matrix. Oxide particles favor an increase in the porosity of the internal sublayer of the scale. |
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| ISSN: | 1068-820X 1573-885X |
| DOI: | 10.1007/s11003-009-9139-x |