Research output: Contribution to journal › Conference article › peer-review
Formation of nanostructures in Al-Mg alloys subjected to severe plastic deformation. / Liu, Manping; Roven, Hans J.; Murashkin, Maxim; Valiev, Ruslan Z.; Kilmametov, Asear; Ungár, Tamas; Balogh, Levente.
In: Materials Research Society Symposium - Proceedings, Vol. 1137, 01.12.2008, p. 225-230.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Formation of nanostructures in Al-Mg alloys subjected to severe plastic deformation
AU - Liu, Manping
AU - Roven, Hans J.
AU - Murashkin, Maxim
AU - Valiev, Ruslan Z.
AU - Kilmametov, Asear
AU - Ungár, Tamas
AU - Balogh, Levente
PY - 2008/12/1
Y1 - 2008/12/1
N2 - Deformation twins and stacking faults have been observed in nanostructured Al-Mg alloys subjected to severe plastic deformation. These observations are surprising because deformation twinning has never been observed in their coarse-grained counterparts under normal conditions. This paper reviews experimental evidences on non-equilibrium grain boundaries, deformation twinning and partial dislocation emissions from grain boundaries. Some of these features can be explained by the results reported from molecular-dynamics simulations of pure fee metals. Special emphasis is laid on the recent observations of high density hexagonal and rhombic shaped nanostructures with an average size of 3 nm in the Al-Mg alloys processed by high pressure torsion. A possible formation process of these nanostructures are proposed based on molecular-dynamics simulations. © 2009 Materials Research Society.
AB - Deformation twins and stacking faults have been observed in nanostructured Al-Mg alloys subjected to severe plastic deformation. These observations are surprising because deformation twinning has never been observed in their coarse-grained counterparts under normal conditions. This paper reviews experimental evidences on non-equilibrium grain boundaries, deformation twinning and partial dislocation emissions from grain boundaries. Some of these features can be explained by the results reported from molecular-dynamics simulations of pure fee metals. Special emphasis is laid on the recent observations of high density hexagonal and rhombic shaped nanostructures with an average size of 3 nm in the Al-Mg alloys processed by high pressure torsion. A possible formation process of these nanostructures are proposed based on molecular-dynamics simulations. © 2009 Materials Research Society.
UR - http://www.scopus.com/inward/record.url?scp=70450145474&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:70450145474
VL - 1137
SP - 225
EP - 230
JO - Materials Research Society Symposium - Proceedings
JF - Materials Research Society Symposium - Proceedings
SN - 0272-9172
ER -
ID: 106660969