Method of providing extended life expectancy for components of boiling water reactors
AssigneeGeneral Electric Company
InventorLeonard W. Niedrach
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AssigneeGeneral Electric Company
InventorLeonard W. Niedrach
Estimating the term…
A method of extending the life of components of newly constructed nuclear reactors or newly replaced components of existing reactors is taught. The method involves forming a deposit on the surfaces of metallic elements of the nuclear containment, as well as on the surfaces of internal components which are exposed to high-temperature, high-pressure water and steam. The deposit formed is a deposit of at least one member of the platinum group of metals. The deposit is formed by any of a number of conventional methods such as electroless deposition, electrochemical deposition, chemical vapor deposition, sputtering or other conventional method. In operation, this deposit facilitates the combination of hydrogen and oxygen to form water and thereby aids in reducing the electrochemical corrosion potential of the system to values below a critical potential range that prevents stress corrosion cracking.
As a containment for a boiling water nuclear reactor, a stainless steel containment, said containment having a deposit of a metal of the plantinum group of metals on the surfaces thereof exposed to high temperature, high pressure water of said boiling water nuclear reactor.
The method of reducing the stress corrosion cracking of a high-temperature, high pressure containment system of a boiling water reactor which comprises coating the internal surface of said containment with a thin deposit of at least 0.03 micrometers of at least one metal of the platinum group of metals and dissolving hydrogen gas in the water of said boiling water reactor.
Dependencies are inferred from the claim text.