Transition of Dislocation Structures in Severe Plastic Deformation and Its Effect on Dissolution in Dislocation Etchant
Joint Authors
Rifai, Muhammad
Miyamoto, Hiroyuki
Bagherpour, Ebad
Yamamoto, Genki
Yuasa, Motohiro
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-01-30
Country of Publication
Egypt
No. of Pages
6
Abstract EN
Transition of dislocation structures in ultrafine-grained copper processed by simple shear extrusion (SSE) and its effects on dissolution were manifested by simple immersion tests using a modified Livingston dislocation etchant, which attacks dislocations and grain boundaries selectively.
The SSE process increased the internal strain evaluated by X-ray line broadening analysis until eight passes but decreased it with further extrusion until twelve passes.
The weight loss in the immersion tests reflected the variation in the internal strain: namely, it increased until eight passes and then decreased with further extrusion to twelve passes.
Taking our previous report on microstructural observation into account, it is suggested that variation in the internal strain is caused by both the variation in dislocation density and structural change of grain boundaries from equilibrium to nonequilibrium states or vice versa.
Decreased dislocation density and structural change back to equilibrium state of grain boundaries in very high strain range by possibly dynamic recovery as pointed out by Dalla Torre were validated by X-ray and dissolution in the modified Livingston etchant in addition to the direct observation by TEM reported in our former report.
American Psychological Association (APA)
Rifai, Muhammad& Bagherpour, Ebad& Yamamoto, Genki& Yuasa, Motohiro& Miyamoto, Hiroyuki. 2018. Transition of Dislocation Structures in Severe Plastic Deformation and Its Effect on Dissolution in Dislocation Etchant. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1120691
Modern Language Association (MLA)
Rifai, Muhammad…[et al.]. Transition of Dislocation Structures in Severe Plastic Deformation and Its Effect on Dissolution in Dislocation Etchant. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-6.
https://search.emarefa.net/detail/BIM-1120691
American Medical Association (AMA)
Rifai, Muhammad& Bagherpour, Ebad& Yamamoto, Genki& Yuasa, Motohiro& Miyamoto, Hiroyuki. Transition of Dislocation Structures in Severe Plastic Deformation and Its Effect on Dissolution in Dislocation Etchant. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1120691
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120691