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Title: X-ray studies of dynamic aging in an aluminum alloy subjected to severe plastic deformation

Abstract

In this work, X-ray scattering methods were applied for a quantitative characterization of the microstructure of an aluminum alloy of the Al–Mg–Si system during dynamic aging realized through the high pressure torsion technique. A qualitative and quantitative phase analysis of the alloy was performed, together with Al alloy lattice parameter determination. From the reflections broadening the effective size of the coherent scattering domains and the lattice microstrain were determined in the framework of the Halder–Wagner approach. Using the method of small-angle X-ray scattering, the quantitative characteristics of the size, shape and spatial distribution of the secondary phase particles formed in the Al alloy during dynamic aging were established. In order to validate the obtained results, the method of small-angle X-ray scattering was preliminarily tested on similar samples after artificial aging and compared with the results from small-angle neutron diffraction widely known in literature. - Highlights: • Spherical fcc β-Mg2Si precipitates formed in Al 6201 alloy during dynamic aging in the course of severe plastic deformation. • The size, shape and distribution of the precipitates due to artificial and dynamic aging were revealed by SAXS method. • Monoclinic needle-like β' precipitates and Al5FeSi intermetallic phase were detected in 6201 alloy aftermore » T6 treatment.« less

Authors:
 [1];  [2];  [3];  [2]
  1. Faculty of Chemistry, Moscow State University, 1-3 Leninskiye Gory, Moscow 119991 (Russian Federation)
  2. Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 12K. Marx Str., Ufa 450000 (Russian Federation)
  3. Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504 (Russian Federation)
Publication Date:
OSTI Identifier:
22587069
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 110; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; AGING; ALUMINIUM ALLOYS; FCC LATTICES; LATTICE PARAMETERS; MICROSTRUCTURE; MONOCLINIC LATTICES; NEUTRON DIFFRACTION; PHASE STUDIES; PLASTICITY; PRECIPITATION; SMALL ANGLE SCATTERING; SPATIAL DISTRIBUTION; X-RAY DIFFRACTION

Citation Formats

Sitdikov, V.D., E-mail: svil@mail.rb.ru, Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504, Chizhov, P. S., Murashkin, M. Yu., Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504, Goidenko, A. A., Valiev, R. Z., and Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504. X-ray studies of dynamic aging in an aluminum alloy subjected to severe plastic deformation. United States: N. p., 2015. Web. doi:10.1016/J.MATCHAR.2015.10.037.
Sitdikov, V.D., E-mail: svil@mail.rb.ru, Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504, Chizhov, P. S., Murashkin, M. Yu., Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504, Goidenko, A. A., Valiev, R. Z., & Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504. X-ray studies of dynamic aging in an aluminum alloy subjected to severe plastic deformation. United States. https://doi.org/10.1016/J.MATCHAR.2015.10.037
Sitdikov, V.D., E-mail: svil@mail.rb.ru, Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504, Chizhov, P. S., Murashkin, M. Yu., Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504, Goidenko, A. A., Valiev, R. Z., and Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504. 2015. "X-ray studies of dynamic aging in an aluminum alloy subjected to severe plastic deformation". United States. https://doi.org/10.1016/J.MATCHAR.2015.10.037.
@article{osti_22587069,
title = {X-ray studies of dynamic aging in an aluminum alloy subjected to severe plastic deformation},
author = {Sitdikov, V.D., E-mail: svil@mail.rb.ru and Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504 and Chizhov, P. S. and Murashkin, M. Yu. and Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504 and Goidenko, A. A. and Valiev, R. Z. and Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, 28 Universitetsky pr., Saint Petersburg 198504},
abstractNote = {In this work, X-ray scattering methods were applied for a quantitative characterization of the microstructure of an aluminum alloy of the Al–Mg–Si system during dynamic aging realized through the high pressure torsion technique. A qualitative and quantitative phase analysis of the alloy was performed, together with Al alloy lattice parameter determination. From the reflections broadening the effective size of the coherent scattering domains and the lattice microstrain were determined in the framework of the Halder–Wagner approach. Using the method of small-angle X-ray scattering, the quantitative characteristics of the size, shape and spatial distribution of the secondary phase particles formed in the Al alloy during dynamic aging were established. In order to validate the obtained results, the method of small-angle X-ray scattering was preliminarily tested on similar samples after artificial aging and compared with the results from small-angle neutron diffraction widely known in literature. - Highlights: • Spherical fcc β-Mg2Si precipitates formed in Al 6201 alloy during dynamic aging in the course of severe plastic deformation. • The size, shape and distribution of the precipitates due to artificial and dynamic aging were revealed by SAXS method. • Monoclinic needle-like β' precipitates and Al5FeSi intermetallic phase were detected in 6201 alloy after T6 treatment.},
doi = {10.1016/J.MATCHAR.2015.10.037},
url = {https://www.osti.gov/biblio/22587069}, journal = {Materials Characterization},
issn = {1044-5803},
number = ,
volume = 110,
place = {United States},
year = {Tue Dec 15 00:00:00 EST 2015},
month = {Tue Dec 15 00:00:00 EST 2015}
}