Published September 27, 1994 | Version v1
Patent Metadata-only

Structural member having excellent resistance to neutron irradiation-embrittleness, austenitic steel used for the same, and usage thereof

Creators

Description

Surfaces of members being used in contact with water and under neutron irradiation are formed with an austenitic steel containing at least one of Pd and Pt. Since Pt or Pd is an element which occludes hydrogen solid-solidified entirely in a mother phase of an alloy of the present invention, Pt or Pd, if added, couples, in the grains, with hydrogen generated or intruded in the steel, to suppress diffusion to the grain boundary. According to the present invention, irradiation-emblittleness due to grain boundary hydrogen emblittleness of structural components and equipments used in a circumstance under irradiation of fast neutron of 1023n/m2 or more and being in contact with water at high temperature or at high temperature and high pressure water can be improved. (T.M.)

Availability note (English)

Available from JAPIO. Also available from EPO.

Additional details

Publishing Information

Imprint Pagination
18 p.
IPC:
Int. Cl. C22C38/00; C22C38/50; G21B1/00; G21C5/00.
IPC
Int. Cl. C22C38/00; C22C38/50; G21B1/00; G21C5/00.
Patent number
JP patent document 6-271988/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
26047488
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ALLOYS; AUSTENITIC STEELS; BRITTLENESS; EMBRITTLEMENT; HYDROGEN; HYDROGEN STORAGE; IRRADIATION; NEUTRONS; PALLADIUM; PLATINUM; PRESSURE VESSELS
Descriptors DEC
BARYONS; CARBON ADDITIONS; CONTAINERS; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; METALS; NONMETALS; NUCLEONS; PLATINUM METALS; STEELS; STORAGE; TRANSITION ELEMENTS

Optional Information

Secondary number(s)
JP patent application 5-58330.