Journal article icon

Journal article

Microstructural degradation of polycrystalline superalloys from oxidized carbides and implications on crack initiation

Abstract:

Surface connected carbides in a polycrystalline superalloy oxidized at 750 °C in air were studied as potential crack initiation sites. Lattice rotations measured in the γ/γ′ grains using high-resolution electron backscatter diffraction enabled investigation of the plastic deformation induced solely by the oxidation of carbides. Dislocations were found to enhance γ′ precipitate dissolution kinetics, resulting in soft recrystallized regions in the vicinity of the oxidized carbide with substanti...

Expand abstract
Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

Actions


Access Document


Files:
Publisher copy:
10.1016/j.scriptamat.2017.12.028

Authors


More by this author
Division:
MPLS Division
Department:
Materials
Oxford college:
St Cross College
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Oxford college:
St Cross College
ORCID:
0000-0002-8801-4102
More by this author
Division:
MPLS Division
Department:
Materials
Oxford college:
St Cross College
Expand authors...
Publisher:
Elsevier Publisher's website
Journal:
Scripta Materialia Journal website
Volume:
147
Pages:
59-63
Publication date:
2018-01-08
Acceptance date:
2017-12-26
DOI:
ISSN:
1359-6462
Pubs id:
pubs:820756
URN:
uri:0520ee31-957e-45cd-918a-9445a47c0512
UUID:
uuid:0520ee31-957e-45cd-918a-9445a47c0512
Local pid:
pubs:820756

Terms of use


Metrics



If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP