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Creep Deformation Behavior of a Novel Precipitate-Hardened Ni-Fe-Base Superalloy at 750 °C

  • P. Zhang
  • , Y. Yuan
  • , Y. F. Gu
  • , Y. Y. Dang
  • , J. B. Yan
  • , J. T. Lu
  • , J. C. Wang
  • Thermal Power Research Institute
  • Northwestern Polytechnical University Xian

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The creep deformation behavior of a novel precipitate-hardened Ni-Fe-base superalloy in solutionized and aged states is investigated at 750 °C/80 to 120 MPa. We found that as creep deformation proceeds, creep curves of specimens in the two states either overlap or are parallel to each other. This study provides a new strategy to design the heat treatment scheme to achieve a good compromise between the strength and fabricability of superalloys for 700 °C-class advanced ultra-supercritical power plants.

Original languageEnglish
Pages (from-to)1062-1066
Number of pages5
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume51
Issue number3
DOIs
StatePublished - 1 Mar 2020

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