Orientation dependence of shear banding in face-centered-cubic single crystals

N. Jia, P. Eisenlohr, F. Roters, D. Raabe, X. Zhao

Research output: Research - peer-reviewArticle

  • 43 Citations

Abstract

We present crystal plasticity finite element simulations of plane strain compression of α-Brass single crystals with different initial orientations. The aim is to study the fundamentals of mesoscale structure and texture development in face-centered-cubic (fcc) metals with low stacking fault energy (SFE). Shear banding depends on the initial orientation of the crystals. In Copper and Brass-R-oriented crystals which show the largest tendency to form shear bands, an inhomogeneous texture distribution induced by shear banding is observed. To also understand the influence of the micromechanical boundary conditions on shear band formation, simulations on Copper-oriented single crystals with varying sample geometry and loading conditions are performed. We find that shear banding can be understood in terms of a mesoscopic softening mechanism. The predicted local textures and the shear banding patterns agree well with experimental observations in low SFE fcc crystals.

LanguageEnglish (US)
Pages3415-3434
Number of pages20
JournalActa Materialia
Volume60
Issue number8
DOIs
StatePublished - May 2012
Externally publishedYes

Profile

Single crystals
Crystals
Textures
Shear bands
Stacking faults
Crystal orientation
Copper
brass
Brass
Plasticity
Compaction
Metals
Boundary conditions
Geometry

Keywords

  • Crystal plasticity finite element analysis
  • Fcc material
  • Shear band
  • Texture

ASJC Scopus subject areas

  • Ceramics and Composites
  • Metals and Alloys
  • Polymers and Plastics
  • Electronic, Optical and Magnetic Materials

Cite this

Orientation dependence of shear banding in face-centered-cubic single crystals. / Jia, N.; Eisenlohr, P.; Roters, F.; Raabe, D.; Zhao, X.

In: Acta Materialia, Vol. 60, No. 8, 05.2012, p. 3415-3434.

Research output: Research - peer-reviewArticle

Jia, N. ; Eisenlohr, P. ; Roters, F. ; Raabe, D. ; Zhao, X./ Orientation dependence of shear banding in face-centered-cubic single crystals. In: Acta Materialia. 2012 ; Vol. 60, No. 8. pp. 3415-3434
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