Sagi Chen, Daniel Rittel, Dan Mordehai. A Percolative Deformation Process Between Nanograins Promotes Dynamic Shear Localization[J]. Materials Research Letters, 2015, 3(2): 76-81.
DOI:
Sagi Chen, Daniel Rittel, Dan Mordehai. A Percolative Deformation Process Between Nanograins Promotes Dynamic Shear Localization[J]. Materials Research Letters, 2015, 3(2): 76-81.DOI: 10.1080/21663831.2014.957791.
A Percolative Deformation Process Between Nanograins Promotes Dynamic Shear Localization
Shear localization is an important failure mechanism in crystalline solid materials. However
while nanograins (NGs) are universally observed in shear bands
their connection with the formation of the bands is not clear yet. Based on molecular dynamics (MD) simulations
we propose that the shear localization evolves as a percolative process of deformation zones between NGs. The presence of NGs is a necessary condition to relieve some of the elastic energy by dislocation emission and absorption. Moreover
the density and spatial arrangement of those grains are of prime importance to accelerate or delay the formation of a strong localization path.
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Related Author
Lanzhang Zhou
Wenru Sun
Fang Liu
Shaowei Li
Zhichao Meng
Zheng Li
Xutao Li
Dan Li
Related Institution
a Institute of Metal Research Chinese Academy of Sciences
b School of Materials Science and Engineering University of Science and Technology of China
a Institute of Metal Research Chinese Academy of Sciences Shenyang People’s Republic of China
a Dongguan Key Laboratory of Interdisciplinary Science for Advanced Materials and Large-scale Scientific Facilities School of Physical Sciences Great Bay University Great Bay Institute for Advanced Study
c Institute of Metal Research Chinese Academy of Sciences