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

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)

Document Details

Document Type
Technical Report
Publication Date
Aug 16, 1972
Accession Number
AD0748590

Entities

People

  • Frank J. Loss
  • R. A. Gray Jr.

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Coolants
  • Cooling
  • Critical Temperature
  • Degradation
  • Diameters
  • Freezing
  • Glass Transition Temperature
  • Materials
  • Physical Properties
  • Reactor Coolants
  • Reactor Materials
  • Toughness
  • Transition Temperature

Readers

  • Combustion and Flow Dynamics.
  • Environmental Engineering.
  • Materials Science (Mechanical Engineering).