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METALLIC STRUCTURE INVESTIGATION METHOD AND DEVICE IN REACTOR
METALLIC STRUCTURE INVESTIGATION METHOD AND DEVICE IN REACTOR
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机译：反应堆金属结构研究方法及装置
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摘要
PROBLEM TO BE SOLVED: To provide a metallic structure investigation method capable of preventing liquid leakage and immersion into an inspection space even to a complicated shape object having a curvature surface in various three-dimensional shapes with CRDs standing in large numbers such as a lower part of a reactor pressure vessel, and on the other hand, when a crack is discovered by any chance on a weld zone of the reactor pressure vessel or a reactor internal structure, it is required to be investigated whether the crack is caused by a stress corrosion crack along a grain boundary structure or not, and therefor, a replica for observing a metallic structure and the state of the cracked surface is required to be collected.SOLUTION: When forming a replica collection space, a filling curing material is injected into the periphery of the space, and a seal tracing the shape of an inspection surface is formed by the filling curing material to thereby acquire a seal shape tracing the shape of the inspection surface.
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