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This content will become publicly available on November 21, 2016

Title: Solute partitioning in multi-component γ/γ' Co–Ni-base superalloys with near-zero lattice misfit

The addition of nickel to cobalt-base alloys enables alloys with a near zero γ – γ' lattice misfit. The solute partitioning between ordered γ' precipitates and the disordered γ matrix have been investigated using atom probe tomography. Lastly, the unique shift in solute partitioning in these alloys, as compared to that in simpler Co-base alloys, derives from changes in site substitution of solutes as the relative amounts of Co and Ni change, highlighting new opportunities for the development of advanced tailored alloys.
Authors:
 [1] ;  [1] ;  [2] ;  [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  2. Univ. of California, Santa Barbara, CA (United States)
Publication Date:
OSTI Identifier:
1294335
Report Number(s):
INL/JOU--14-33973
Journal ID: ISSN 1359-6462; PII: S1359646215300373
Grant/Contract Number:
AC07-05ID14517; 1233704
Type:
Accepted Manuscript
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 113; Journal Issue: C; Journal ID: ISSN 1359-6462
Publisher:
Elsevier
Research Org:
Idaho National Laboratory, Idaho Falls, ID (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE Co-base superalloys; APT; TEM; partitioning; lattice misfit