On the origin of the extremely high strength of ultrafine-grained Al alloys produced by severe plastic deformation. / Valiev, R. Z.; Enikeev, N. A.; Murashkin, M. Yu; Kazykhanov, V. U.; Sauvage, X.
In: Scripta Materialia, Vol. 63, No. 9, 11.2010, p. 949-952.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - On the origin of the extremely high strength of ultrafine-grained Al alloys produced by severe plastic deformation
AU - Valiev, R. Z.
AU - Enikeev, N. A.
AU - Murashkin, M. Yu
AU - Kazykhanov, V. U.
AU - Sauvage, X.
PY - 2010/11
Y1 - 2010/11
N2 - Ultrafine-grained Al alloys produced by high-pressure torsion are found to exhibit a very high strength, considerably exceeding the Hall-Petch predictions for ultrafine grains. This phenomenon can be attributed to the unique combination of ultrafine structure and deformation-induced segregations of solute elements along grain boundaries, which may affect the emission and mobility of intragranular dislocations.
AB - Ultrafine-grained Al alloys produced by high-pressure torsion are found to exhibit a very high strength, considerably exceeding the Hall-Petch predictions for ultrafine grains. This phenomenon can be attributed to the unique combination of ultrafine structure and deformation-induced segregations of solute elements along grain boundaries, which may affect the emission and mobility of intragranular dislocations.
KW - Al alloys
KW - Hall-Petch relationship
KW - Segregation
KW - Ultrafine-grained materials
UR - http://www.scopus.com/inward/record.url?scp=77955981163&partnerID=8YFLogxK
U2 - 10.1016/j.scriptamat.2010.07.014
DO - 10.1016/j.scriptamat.2010.07.014
M3 - Article
AN - SCOPUS:77955981163
VL - 63
SP - 949
EP - 952
JO - Scripta Materialia
JF - Scripta Materialia
SN - 1359-6462
IS - 9
ER -
ID: 16949830