Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Observations of unique plastic behavior in micro-pillars of an ultrafine-grained alloy. / Chinh, Nguyen Q.; Győri, Tivadar; Valiev, Ruslan Z.; Szommer, Péter; Varga, Gábor; Havancsák, Károly; Langdon, Terence G.
в: MRS Communications, Том 2, № 3, 01.01.2012, стр. 75-78.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Observations of unique plastic behavior in micro-pillars of an ultrafine-grained alloy
AU - Chinh, Nguyen Q.
AU - Győri, Tivadar
AU - Valiev, Ruslan Z.
AU - Szommer, Péter
AU - Varga, Gábor
AU - Havancsák, Károly
AU - Langdon, Terence G.
PY - 2012/1/1
Y1 - 2012/1/1
N2 - When ultrafine-grained (UFG) samples are deformed plastically, it is necessary to consider the role of grain boundaries even at the micrometer scale in sample size. We report here the occurrence of intensive grain boundary sliding (GBS) at room temperature in micro-pillars of a UFG aluminum alloy having an unusually high strain rate sensitivity. A consequence of this GBS is that the intermittent flow with detrimental strain avalanches characterizing micro-sized conventional crystals is not present in UFG materials, thereby illustrating a potential for effectively applying these UFG materials in micro-devices.
AB - When ultrafine-grained (UFG) samples are deformed plastically, it is necessary to consider the role of grain boundaries even at the micrometer scale in sample size. We report here the occurrence of intensive grain boundary sliding (GBS) at room temperature in micro-pillars of a UFG aluminum alloy having an unusually high strain rate sensitivity. A consequence of this GBS is that the intermittent flow with detrimental strain avalanches characterizing micro-sized conventional crystals is not present in UFG materials, thereby illustrating a potential for effectively applying these UFG materials in micro-devices.
UR - http://www.scopus.com/inward/record.url?scp=85011467001&partnerID=8YFLogxK
U2 - 10.1557/mrc.2012.11
DO - 10.1557/mrc.2012.11
M3 - Article
AN - SCOPUS:85011467001
VL - 2
SP - 75
EP - 78
JO - MRS Communications
JF - MRS Communications
SN - 2159-6859
IS - 3
ER -
ID: 35168870