Metal treatment – Stock – Ferrous
Patent
1996-12-10
1998-04-07
Simmons, David A.
Metal treatment
Stock
Ferrous
148333, 148337, 148423, 148425, 148421, 148428, 148429, 148239, 148565, 148430, 376457, 376901, G21C 307, G21C 306
Patent
active
057359741
ABSTRACT:
A part of a light-water reactor, for example, a cladding for a light-water reactor has at least a portion made of an intermetallic compound, such as Ni.sub.3 Al, Ni.sub.2 Al.sub.3, TiAl, Ti.sub.3 Al, Pt.sub.2 Si, PtSi, FeAl.sub.2, CoAl, and MoSi.sub.2, thereby having limited irradiation degradation by fast neutrons, improved ductility and usability at high temperatures the intermetallic compound is produced by a process comprising a step of irradiating the intermetallic compound with at least one selected from the group consisting of a neutron, a light ion, and an electron. The intermetallic compound may contain a twin and a third additional element segregatedly present or forms a second phase at or near to a grain boundary.
REFERENCES:
patent: 3563728 (1971-02-01), Allio et al.
patent: 3813263 (1974-05-01), Rosenberg
patent: 4299625 (1981-11-01), Michel et al.
patent: 4360389 (1982-11-01), Urguhart
patent: 4444599 (1984-04-01), Ikeya
patent: 4648912 (1987-03-01), Sabol et al.
J.T. Niemann and R.P. Sopher, "Embrittlement of Multipass Welds in Zircaloy 2" Welding Research Supplement 1/56; pp. 27-31.
Fukai Katsumaro
Hishinuma Akimichi
Japan Atomic Energy Research
Phipps Margery S.
Simmons David A.
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