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Influence of high dose neutron irradiation on microstructure of EP-450 ferritic–martensitic steel irradiated in three Russian fast reactors by A.M Dvoriashin; S.I Porollo; Yu.V Konobeev; F.A Garner is a Materials Science article available to read on EtoBox.

What is Influence of high dose neutron irradiation on microstructure of EP-450 ferritic–martensitic steel irradiated in three Russian fast reactors about?

The microstructure of EP-450 ferritic-martensitic steel was determined after irradiation in BN-350, BN-600 and BR-10 fast reactors at temperatures in the range 275-690 °C. The examinations confirm a high resistance of EP-450 steel to void swelling, but the resistance appears to be lower when the dpa rate is reduced. Depending on irradiation dose and temperature the following was observed: voids (285-520 °C), dislocation loops and linear dislocations (275-520 °C), a 0phase (285-520 °C), v-phase (460-590 °C), and M 2 X precipitates (460-690 °C). It appears that the formation of dislocation loops and a 0 precipitates at high densities is responsible for the low temperature embrittlement observed in this steel.

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Author

A.M Dvoriashin; S.I Porollo; Yu.V Konobeev; F.A Garner

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-3115)

Published

2004

Language

EN

Field

Materials Science (Physical Sciences)