γ′ Precipitation and Growth Kinetics in Mechanically Alloyed Ni–Al
Joint Authors
Minami, Akinobu
Tang, QingXin
Hayashi, Shigenari
Ukai, Shigeharu
Source
Advances in Materials Science and Engineering
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-07-07
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
The precipitation and growth kinetics of γ′ precipitates, which are strengthening factors in Ni-base oxide dispersion strengthened (ODS) superalloys, were investigated.
The cuboidal-type γ′ precipitates are formed in conventional arc-melted Ni–Al alloys, whereas spherical-type precipitates are formed in the mechanically alloyed (MAed) specimens.
The morphology is controlled by a lattice misfit between the γ′ precipitates and the matrix at the aging temperature of 800°C.
The growth kinetics of the γ′ precipitates can be followed by Ostwald ripening.
The Arrhenius plot yielded a lower activation energy for the solute atom diffusion in MAed specimens, which is attributed to their high dislocation density and nanosized grains.
American Psychological Association (APA)
Tang, QingXin& Ukai, Shigeharu& Minami, Akinobu& Hayashi, Shigenari. 2011. γ′ Precipitation and Growth Kinetics in Mechanically Alloyed Ni–Al. Advances in Materials Science and Engineering،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-448652
Modern Language Association (MLA)
Tang, QingXin…[et al.]. γ′ Precipitation and Growth Kinetics in Mechanically Alloyed Ni–Al. Advances in Materials Science and Engineering No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-448652
American Medical Association (AMA)
Tang, QingXin& Ukai, Shigeharu& Minami, Akinobu& Hayashi, Shigenari. γ′ Precipitation and Growth Kinetics in Mechanically Alloyed Ni–Al. Advances in Materials Science and Engineering. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-448652
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-448652
