Abstract

The power generating capacity of nuclear power plants significantly increased in the late 1960s and recently reached 1600MW. High-quality reactor pressure vessel (RPV) material should have homogeneity, no harmful internal defects, good inspectability, low aging embrittlement susceptibility – including neutron irradiation embrittlement – good fracture toughness, weldability, etc. To build in these qualities, it is necessary to develop advanced production technologies such as refining, casting, forging, heat treatment and machining. This chapter gives a brief introduction to the history and present status of forgings and production technologies.

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