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Investigation of the anisotropic mechanical behaviors of copper single crystals through nanoindentation modeling

Journal Article


Abstract


  • A crystal plasticity finite element method constitutive model was developed to investigate the anisotropic mechanical behaviors of (001), (011), and (111) initially orientated copper (Cu) single crystals during nanoindentation deformation. The numerical load-indentation depth curve and hardness-indentation depth curve were compared with experimental observations to validate the established three-dimensional (3D) CPFEM model. The difference of indentation loads between (111) crystal and (001) crystal is ~10.68 pct, and the difference of indentation modulus between (111) surface and (001) surface is ~10.80 pct. The numerical results show the noticeable indentation size effect for three crystals, and slightly different hardness values on different crystallographic planes. The equivalent plastic strain and lattice rotation angles were also analyzed on three through-thickness cross sections to study the plastic deformation-induced texture anisotropy.

Authors


  •   Liu, Mao (external author)
  •   Tieu, A Kiet.
  •   Zhou, Kun (external author)
  •   Peng, Ching-Tun (external author)

Publication Date


  • 2016

Citation


  • Liu, M., Tieu, K. Anh., Zhou, K. & Peng, C. (2016). Investigation of the anisotropic mechanical behaviors of copper single crystals through nanoindentation modeling. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 47A 2717-2725.

Scopus Eid


  • 2-s2.0-84963767388

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5880

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 2717

End Page


  • 2725

Volume


  • 47A

Place Of Publication


  • United States

Abstract


  • A crystal plasticity finite element method constitutive model was developed to investigate the anisotropic mechanical behaviors of (001), (011), and (111) initially orientated copper (Cu) single crystals during nanoindentation deformation. The numerical load-indentation depth curve and hardness-indentation depth curve were compared with experimental observations to validate the established three-dimensional (3D) CPFEM model. The difference of indentation loads between (111) crystal and (001) crystal is ~10.68 pct, and the difference of indentation modulus between (111) surface and (001) surface is ~10.80 pct. The numerical results show the noticeable indentation size effect for three crystals, and slightly different hardness values on different crystallographic planes. The equivalent plastic strain and lattice rotation angles were also analyzed on three through-thickness cross sections to study the plastic deformation-induced texture anisotropy.

Authors


  •   Liu, Mao (external author)
  •   Tieu, A Kiet.
  •   Zhou, Kun (external author)
  •   Peng, Ching-Tun (external author)

Publication Date


  • 2016

Citation


  • Liu, M., Tieu, K. Anh., Zhou, K. & Peng, C. (2016). Investigation of the anisotropic mechanical behaviors of copper single crystals through nanoindentation modeling. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 47A 2717-2725.

Scopus Eid


  • 2-s2.0-84963767388

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5880

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 2717

End Page


  • 2725

Volume


  • 47A

Place Of Publication


  • United States