The Cryogenic Tensile and Fracture Toughness Properties of Austenitic Steels Given Low Temperature, Short-Time Nb3Sn Reaction Heat Treatments

  • L. T. Summers
  • R. P. Walsh
  • J. R. Miller
Part of the Advances in Cryogenic Engineering Materials book series (ACRE, volume 42)


Commercial 316L and 316LN alloys have been evaluated for service as the conduit material for the 45-T Hybrid Magnet. The 4 K tensile and fracture toughness properties of these alloys have been measured before and after a simulated Nb3Sn reaction heat treatment. The tensile properties have been found to be unaffected by the heat treatment short, low temperature proposed for high performance superconductors. The fracture toughness also does not change with heat treatment although there is evidence of discontinuous intergranular precipitation in the high carbon 316LN alloy. Uncharacteristically low toughness is reported for one alloy in both the as received and heat treated condition.


Fracture Toughness Austenitic Steel Charpy Impact Aging Heat Treatment Fracture Toughness Property 
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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • L. T. Summers
    • 1
  • R. P. Walsh
    • 1
  • J. R. Miller
    • 1
  1. 1.National High Magnetic Field LaboratoryTallahasseeUSA

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