Metallurgical Transactions A

, Volume 15, Issue 9, pp 1763–1767 | Cite as

Tensile behavior of inconel alloy X-750 in air and vacuum at elevated temperatures

  • M. C. Pandey
  • D. M. R. Taplin
  • A. K. Mukherjee
Environmental Interactions


Investigations carried out on the hot tensile properties of Inconel alloy X-750 at 700 °C in air and vacuum at different strain rates, in the range of 1 × 10−7 to 1.2 × 10−6 s−1, have shown that testing in air had a weakening effect on properties. Creep ductility in vacuum (p 02 = 2.7 × 10−5 Pa) did not change appreciably with strain rate, but ductility varied markedly when tested in the air. Further, the ductility minimum occurred at 625 °C in air whereas considerable improvements in the creep ductilities were observed at 575 °C and 625 °C in the vacuum. The results indicated that the environmental interaction during testing enhanced the rate of cavitation damage causing premature failure in the material.


Ductility Metallurgical Transaction Boundary Migration Chromium Carbide Creep Crack Growth 
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Copyright information

© The Metallurgical Society of American Institute of Mining 1984

Authors and Affiliations

  • M. C. Pandey
    • 1
  • D. M. R. Taplin
    • 1
  • A. K. Mukherjee
    • 2
  1. 1.Division of Materials Science, Department of Mechanical EngineeringUniversity of CaliforniaDavis
  2. 2.Department of Mechanical and Manufacturing Engineering, Trinity CollegeUniversity of DublinDublin-2Ireland

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