Precipitation hardening type single crystal austenitic steel, an

Details Precipitation hardening type single crystal austenitic steel, an Precipitation hardening type single crystal austenitic steel, an

1998-04-21

1999-11-16

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

Reactor structures

376457, 376463, 376900, 148326, 148327, 148404, G21C 104, C22C 3840

Patent

active

059870885

ABSTRACT:
In order to provide an austenitic single crystal stainless steel having preferable stress corrosion cracking resistance, strength, and irradiation induced embrittlement resistance so as to extend the life of a nuclear reactor core structure, which is used under a high radiation dose environment, a method is employed, which comprises the steps of homogeneously dispersing carbides into a parent phase of the austenitic single crystal stainless steel by a two step solution heat treatment, and subsequently effecting an ageing heat treatment after rapid cooling for precipitating fine carbides. Austenitic single crystal stainless steel having preferable stress corrosion cracking resistance, strength, and irradiation induced embrittlement resistance can be provided, and the life of nuclear reactor core structure, which is used under a high radiation dose environment, can be extended.

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