Orientation dependence of indentation behavior in Al-SiC nanolaminate composites

C. Mayer, L. W. Yang, S. S. Singh, H. Xie, Y. L. Shen, J. Llorca, J. Molina-Aldareguia, Nikhilesh Chawla

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Al and SiC nanolaminate films were characterized in the perpendicular, inclined and parallel orientations using nanoindentation. The deformation was dominated by buckling of the layers when the layers were parallel to the indenter and by compression of the ductile Al layers when the layers were perpendicular to the indenter, while indentation in inclined orientations showed an intermediate behavior. Finite element modeling (FEM) of indentation deformation using wavy layers showed much more compliant behavior and prominent layer buckling than the idealized flat structure, highlighting the large effect these microstructural details can have on the deformation behavior.

Original languageEnglish (US)
Pages (from-to)129-133
Number of pages5
JournalMaterials Letters
Volume168
DOIs
StatePublished - Apr 1 2016

Keywords

  • Anisotropy
  • Finite element modeling
  • Multilayer
  • Nanoindentation
  • Nanolaminate

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Mayer, C., Yang, L. W., Singh, S. S., Xie, H., Shen, Y. L., Llorca, J., Molina-Aldareguia, J., & Chawla, N. (2016). Orientation dependence of indentation behavior in Al-SiC nanolaminate composites. Materials Letters, 168, 129-133. https://doi.org/10.1016/j.matlet.2016.01.049