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Plastic flow, structure and mechanical properties in pure Al deformed by twist extrusion

Orlov, Dmitry; Beygelzimer, Yan; Synkov, Sergey; Varyukhin, Viktor; Tsuji, Nobuhiro and Horita, Zenji (2009) In Materials Science & Engineering: A 519(1-2). p.105-111
Abstract

Twist extrusion (TE) is known as one of newly developed, but still moderately studied severe plastic deformation methods. This research was initiated to conduct a detailed study of structure-properties relationship evolution during TE processing. The evolution of macrostructure, Vickers hardness and tensile properties was studied in 99.99% purity aluminum during twist extrusion processing at room temperature up to 4 TE passes (total average equivalent strain of ∼4.8). The process resulted in almost homogeneously refined structure that cannot be resolved optically. Significant increase in Vickers hardness, yield strength and ultimate tensile strength with moderate degradation in ductility of Al was observed. Apart from some structural... (More)

Twist extrusion (TE) is known as one of newly developed, but still moderately studied severe plastic deformation methods. This research was initiated to conduct a detailed study of structure-properties relationship evolution during TE processing. The evolution of macrostructure, Vickers hardness and tensile properties was studied in 99.99% purity aluminum during twist extrusion processing at room temperature up to 4 TE passes (total average equivalent strain of ∼4.8). The process resulted in almost homogeneously refined structure that cannot be resolved optically. Significant increase in Vickers hardness, yield strength and ultimate tensile strength with moderate degradation in ductility of Al was observed. Apart from some structural inhomogeneity, all the mechanical properties were almost homogeneous and isotropic after four TE passes.

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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Aluminum, Macrostructure, Mechanical properties, Severe plastic deformation, Twist extrusion
in
Materials Science & Engineering: A
volume
519
issue
1-2
pages
7 pages
publisher
Elsevier
external identifiers
  • scopus:67650164360
ISSN
0921-5093
DOI
10.1016/j.msea.2009.06.005
language
English
LU publication?
no
id
8e085060-4b66-4b4f-a4c2-325eb634ff10
date added to LUP
2016-06-20 16:00:00
date last changed
2017-10-01 05:20:48
@article{8e085060-4b66-4b4f-a4c2-325eb634ff10,
  abstract     = {<p>Twist extrusion (TE) is known as one of newly developed, but still moderately studied severe plastic deformation methods. This research was initiated to conduct a detailed study of structure-properties relationship evolution during TE processing. The evolution of macrostructure, Vickers hardness and tensile properties was studied in 99.99% purity aluminum during twist extrusion processing at room temperature up to 4 TE passes (total average equivalent strain of ∼4.8). The process resulted in almost homogeneously refined structure that cannot be resolved optically. Significant increase in Vickers hardness, yield strength and ultimate tensile strength with moderate degradation in ductility of Al was observed. Apart from some structural inhomogeneity, all the mechanical properties were almost homogeneous and isotropic after four TE passes.</p>},
  author       = {Orlov, Dmitry and Beygelzimer, Yan and Synkov, Sergey and Varyukhin, Viktor and Tsuji, Nobuhiro and Horita, Zenji},
  issn         = {0921-5093},
  keyword      = {Aluminum,Macrostructure,Mechanical properties,Severe plastic deformation,Twist extrusion},
  language     = {eng},
  month        = {08},
  number       = {1-2},
  pages        = {105--111},
  publisher    = {Elsevier},
  series       = {Materials Science & Engineering: A},
  title        = {Plastic flow, structure and mechanical properties in pure Al deformed by twist extrusion},
  url          = {http://dx.doi.org/10.1016/j.msea.2009.06.005},
  volume       = {519},
  year         = {2009},
}