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HomeMaterials Science ForumMaterials Science Forum Vol. 789Molecular Dynamics Simulation of Porous...

Molecular Dynamics Simulation of Porous Layer-Induced Stress in α-Iron Single Crystal and Twin Crystal

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Abstract:

Molecular dynamics (MD) simulation was carried out to investigate the stress distribution and the macro tensile stress for the α-iron single crystal and twin crystal. The results show that there was a maximum tensile stress located at the matrix near the interface between the porous layer and the matrix for the two crystals. It has been found that a steep drop of stress generated at the twin boundary of the twin crystal. The deflection and the macro tensile stress of the single crystal and the twin crystal increased with an increase of the relative depth of the porous layer. The value of the deflection and the macro tensile stress of the single crystal were larger than that for the twin crystal, because there is a steep drop of stress generated at the twin boundary due to the effect of twin interface.

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Periodical:

Materials Science Forum (Volume 789)

Pages:

536-542

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.789.536

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Online since:

April 2014

Authors:

D. Li*, Fan Yan Meng, X.Q. Ma, Lie Jie Qiao, W.Y. Chu

Keywords:

Fe Single Crystal, Fe Twin Crystal, Molecular Dynamics Simulation, Porous Layer-Induced Stress

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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