Nickel Chromium Iron Alloys for Nuclear Reactor Vessel Components

摘要

This report describes the work that was performed in the following areas:n• A survey of domestic and some foreign commercial facilities to identify and characterize nuclear power plant components fabricated from age-hardenable Alloys X-750, A-286 and 718.n• A more detailed characterization and examination of Alloy X-750 fuel assembly holddown spring components that failed during service in a pressurized water reactor (PWR).nThe results include information (when available) such as material heat treatments, operational stress levels, service temperatures, environments, extent of use and performance histories for components in service in PWR and boiling water reactor (BWR) plants.