Accession Number : AD0748590

Title :   Fracture Safety Considerations for Hanford-N Reactor Coolant Piping Material,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Gray,R. A. , Jr. ; Loss,F. J.

Report Date : 16 AUG 1972

Pagination or Media Count : 18

Abstract : A proposal has been made to lower the temperature of makeup injection water in the Hanford-N reactor coolant piping to achieve a more economical operation. A second proposal calls for freezing a plug of water in a large-diameter pipe to permit value repairs. Implementation of either proposal enforces a degradation in fracture toughness since the latter is temperature dependent. In this report the toughness of A106-B and A212-B pipe materials has been characterized by the Dynamic Tear test procedures. The toughness trends evolved have been used to assess the fracture safety of the proposed operations. (Author)

Descriptors :   (*STEEL, FRACTURE(MECHANICS)), (*REACTOR MATERIALS, STEEL), PIPES, GRAPHITE MODERATED REACTORS, PRESSURIZED WATER REACTORS, ELECTRIC POWER PRODUCTION, NUCLEAR REACTORS, SAFETY

Subject Categories : Metallurgy and Metallography
      Fission Reactor Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE