Cryogenic Fracture Mechanics Properties of Several Manufacturing Process/Heat Treatment Combinations of Inconel X750

  • W. A. Logsdon
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 22)


Inconel X750, an austenitic nickel base superalloy, has been extensively utilized in the torque tube, damper shield, outer rotor shell, and stub shafts of a Westinghouse prototype 5 MVA superconducting generator [1,2]To aid in evaluating the fail-safe performance of this superconducting generator, the fracture mechanics as well as mechanical properties of several manufacturing process/heat treatment combinations of Inconel X750 were determined in cryogenic environments. These included three commercial melting practices plus hot isostatic pressed Inconel X750. The two heat treatments explored included a solution treat (ST) and a solution treat and double age (STDA).


Fracture Toughness Fatigue Crack Crack Growth Rate Fatigue Crack Growth Rate Fracture Toughness Test 
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Copyright information

© Springer Science+Business Media New York 1977

Authors and Affiliations

  • W. A. Logsdon
    • 1
  1. 1.Westinghouse Research LaboratoriesPittsburghUSA

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