TH25  Carbon Macro Segregation in Large Nuclear Forgings

Regions of carbon macro segregation can be present in large nuclear components as a result of certain manufacturing processes. These regions of high carbon exhibit a localized increase in the strength and decrease in the fracture toughness of the steel.  If a region of macro carbon segregation is present in a component, questions about the component’s structural integrity may arise.  This session focuses on the technical topics associated with localized carbon macro segregation including the manufacturing process that could lead to this anomaly and its potential impacts on the integrity of large nuclear components.

  • David Rudland, Branch Chief, Division of Engineering, NRR/NRC tel: 301-415-1896, e-mail:

Page Last Reviewed/Updated Friday, June 09, 2017