Coprecipitation of M sub 23 C sub 6 and MC Type Carbide Under the Influence of Irradiation

Coprecipitation of M sub 23 C sub 6 and MC Type Carbide Under the Influence of Irradiation

After high-temperature neutron irradiation of 1.4970 type steel M sub 23 C sub 6 , precipitation was observed in the matrix. This precipitate phase was found only at grain boundaries after thermal treatments. A unique feature of this irradiation-modified phase formation was that the ates nucleated a...

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Veröffentlicht in:Journal of nuclear materials 1989-12, Vol.179-181, p.1015-1018
Hauptverfasser: Kesternich, W, Nandedkar, R V
Format: Artikel
Sprache:eng
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Zusammenfassung:After high-temperature neutron irradiation of 1.4970 type steel M sub 23 C sub 6 , precipitation was observed in the matrix. This precipitate phase was found only at grain boundaries after thermal treatments. A unique feature of this irradiation-modified phase formation was that the ates nucleated at the surfaces of pre-existing MC type carbides and grew in a very unusual way by forming faceted enclosures around the primary precipitates. Photomicrographs, Diffraction patterns. 8 ref.--AA
ISSN:0022-3115