On the critical thickness for non-localized to localized plastic flow transition in metallic glasses: A molecular dynamics study
On the critical thickness for non-localized to localized plastic flow transition in metallic glasses: A molecular dynamics study
复制标题
关于金属玻璃中非局部塑性流动转变为局部塑性流动转变的临界厚度:分子动力学研究
DOI:
10.1016/j.scriptamat.2015.12.012
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发表时间:
2016-03
影响因子:
6
通讯作者:
Jiang J. Z.
中科院分区:
文献类型:
--
作者:
Zhong C.;Zhang H.;Cao Q. P.;Wang X. D.;Zhang D. X.;Ramamurty U.;Jiang J. Z.
Molecular dynamics simulations were employed to investigate the specimen thickness-dependent tensile behavior of a series of CuxZr100-x(x= 20, 40, 50, 64 and 80 at.%) metallic glass (MG) films, with a particular focus on the critical thickness,tc, below which non-localized plastic flow takes place. The simulation results reveal that while the transition occurs in all the alloys examined,tcis sensitive to the composition. We rationalizetcby postulating that the strain energy stored in the sample at the onset of plastic deformation has to be sufficient for the formation of shear bands. The composition-dependence oftcwas found to correlate with the average activation energy of the atomic level plastic deformation events.
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DOI:
10.1016/0001-6160(79)90055-5
发表时间:
1979-01-01
期刊:
ACTA METALLURGICA
影响因子:
--
作者:
ARGON, AS
通讯作者:
ARGON, AS
影响因子:
29.4
作者:
Kumar, Golden;Desai, Amish;Schroers, Jan
通讯作者:
Schroers, Jan
影响因子:
3.7
作者:
Chen, Chang Qiang;Pei, Yu Tao;De Hosson, Jeff Th M.
通讯作者:
De Hosson, Jeff Th M.
影响因子:
6
作者:
Zhong C.;Zhang H.;Cao Q. P.;Wang X. D.;Zhang D. X.;Jiang J. Z.
通讯作者:
Jiang J. Z.
影响因子:
4.1
作者:
PLIMPTON, S
通讯作者:
PLIMPTON, S