Effect of long-term aging on the microstructure andmechanical properties of FGH96 superalloy
CSTR:
Author:
Clc Number:

TG136.2

  • Article
  • | |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • | |
  • Comments
    Abstract:

    The mechanical properties of FGH96 superalloy after long-term aging were studied with tensile tests, stress rupture tests, and creep tests. The microstructure and precipitation phases were investigated by optical microscopy (OM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Results show that at the condition of aging temperature of 550 ℃ and 650 ℃, aging time from 100 h to 7 500 h, the grain size, morphology of γ' phase, fraction of MC plus M3B2 phases, tensile properties, and rupture strength of the FGH96 superalloy after long-term aging keep nearly the same with those before long-term aging. The factions of γ' phase and Cr23C6 phase increase with increasing aging time at 650 ℃ while they remain almost unchanged at 550 ℃, which leads to the increasing residual strain of creep deformation for the 650 ℃ aged FGH96 superalloy.

    Reference
    Related
    Cited by
Get Citation

周晓明,王志彪,冯业飞,曾维虎.长期时效对FGH96合金组织与力学性能的影响[J].重庆大学学报,2021,44(6):127~136

Copy
Related Videos

Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:February 28,2021
  • Online: June 10,2021
Article QR Code