The analysis of severely deformed pure Fe structure aided by X-ray diffraction profile
- Autores: Forouzanmehr N.1, Nili-Ahmadabadi M.1, Bönisch M.2,3
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Afiliações:
- School of Metallurgy and Materials Engineering
- IFW-Dresden
- Institute of Structural Physics
- Edição: Volume 117, Nº 6 (2016)
- Páginas: 624-633
- Seção: Strength and Plasticity
- URL: https://journals.rcsi.science/0031-918X/article/view/166800
- DOI: https://doi.org/10.1134/S0031918X16060077
- ID: 166800
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Resumo
Pure Fe was severely deformed by a combination of shaped cold rolling and cold drawing. X-ray diffraction profiles analysis was applied in accordance with the Williamson-Hall (WH) and modified Williamson-Hall (MWH) methods to identify crystallite sizes of the deformed specimens. It was found that some differences exist between the results of WH and MWH procedures using the hkl dependent Young’s modulus or considering the average dislocation contrast factor. The latter method is more accurate and enables the determination of the character of dislocations in plastically deformed Fe. It was shown that by increasing deformation strain, the screw dislocations dominated. The enhancement of hardness occurs in the deformed Fe due to grain refinement, dislocation accumulation and deformation-induced vacancies.
Sobre autores
Nazanin Forouzanmehr
School of Metallurgy and Materials Engineering
Email: nili@ut.ac.ir
Irã, Tehran
Mahmoud Nili-Ahmadabadi
School of Metallurgy and Materials Engineering
Autor responsável pela correspondência
Email: nili@ut.ac.ir
Irã, Tehran
Matthias Bönisch
IFW-Dresden; Institute of Structural Physics
Email: nili@ut.ac.ir
Alemanha, Dresden, D-01171; Haeckelstraé 3, Dresden, D-01069