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Development of a Physically-Based Creep Model Incorporating Eta Phase Evolution for Nickel Base Superalloys

Technical Report ·
DOI:https://doi.org/10.2172/1782793· OSTI ID:1782793
 [1];  [2];  [2];  [2];  [3]
  1. Michigan Technological Univ., Houghton, MI (United States). Dept. of Materials Science and Engineering; Michigan Technological University
  2. Michigan Technological Univ., Houghton, MI (United States). Dept. of Materials Science and Engineering
  3. Electric Power Research Institute (EPRI), Charlotte, NC (United States)
+ Show Author Affiliations
Nickel-base superalloys that are in service for long periods of time in fossil energy powerplants have microstructures that evolve with time. The strengthening gamma prime phase coarsens, and in some alloys, a new phase (eta) forms at grain boundaries, and its effect on creep performance is not fully understood.
Research Organization:
Michigan Technological Univ., Houghton, MI (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
DOE Contract Number:
FE0027822
OSTI ID:
1782793
Report Number(s):
DE-FE0027822-Final
Country of Publication:
United States
Language:
English

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Related Subjects

20 FOSSIL-FUELED POWER PLANTS
36 MATERIALS SCIENCE
42 ENGINEERING
creep
creep modeling
nickel-base superalloys