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An Atomic Study of Substructures Formed by Shear Transformation in Cast γ-TiAl
Joint Authors
Kou, Hongchao
Zhang, Hanlei
Li, Xiaolei
Tang, Bin
Li, Jinshan
Source
Advances in Materials Science and Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-17
Country of Publication
Egypt
No. of Pages
6
Abstract EN
Substructures and microsegregation of γ/γ laths are analyzed with HRTEM and HAADF-STEM.
Results show that the substructures are generated during evolution of shear transformation on the (111-) plane of γ lath.
At the beginning, shear transformation evolves in a single γ lath, and a superstructure intrinsic stacking fault (SISF) forms in the γ lath.
After the formation of the SISF, the shear transformation may evolve in two different ways.
If the shear transformation evolves into neighboring γ laths, the SISF also penetrates into neighboring γ laths and a ribbon of SISFs forms.
If shear transformation continues to evolve in the original lath, complex substructures begin to form in the original.
If shear transformation in the original lath is homogeneous and complete, secondary twin forms which may further grow into twin intersection.
Incomplete shear transformation could not form secondary twins but generates a high concentration of planar faults on the (111-) plane.
These planar faults may further penetrate the γ/γ lath interface, grow into adjacent laths, and form a ribbon of planar faults.
American Psychological Association (APA)
Zhang, Hanlei& Kou, Hongchao& Li, Xiaolei& Tang, Bin& Li, Jinshan. 2015. An Atomic Study of Substructures Formed by Shear Transformation in Cast γ-TiAl. Advances in Materials Science and Engineering،Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1053602
Modern Language Association (MLA)
Zhang, Hanlei…[et al.]. An Atomic Study of Substructures Formed by Shear Transformation in Cast γ-TiAl. Advances in Materials Science and Engineering No. 2015 (2015), pp.1-6.
https://search.emarefa.net/detail/BIM-1053602
American Medical Association (AMA)
Zhang, Hanlei& Kou, Hongchao& Li, Xiaolei& Tang, Bin& Li, Jinshan. An Atomic Study of Substructures Formed by Shear Transformation in Cast γ-TiAl. Advances in Materials Science and Engineering. 2015. Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1053602
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1053602