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ID 115403
Title Alternative
Effect of Ti and Al Contents on γ′ Morphology in Wrought Ni-based Superalloys
Author
Terada, Yoshihiro Tokyo Institute of Technology
Keywords
nickel-based alloy
gamma prime
morphology
lattice misfit
Ti/Al ratio
Content Type
Journal Article
Description
The effect of the content of Ti and Al on the morphology of γ′ precipitates is examined for 13 kinds of Ni-based model alloys aged at 1073 K/100 h. The morphology of γ′ precipitates was evaluated using the absolute moment invariants technique. The magnitude of cuboidal for γ′ particles clearly depends on the lattice misfit, but does not depend on the volume fraction of the particles. More γ′ particles tend to form a flat and parallel interface pair or elongated shape when the Ti and Al content is increased. These results suggest that the lattice misfit makes γ′ particles cuboidal and volume fraction strengthens their interaction, leading to a unique morphology.
Journal Title
Journal of the Japan Institute of Metals and Materials
ISSN
00214876
18806880
NCID
AN00062446
Publisher
日本金属学会
Volume
81
Issue
5
Start Page
244
End Page
250
Published Date
2017-04-25
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
jpn
TextVersion
Publisher
departments
Science and Technology