Characterization and modeling of heterogeneous deformation in commercial purity titanium

Y. Yang, L. Wang, C. Zambaldi, P. Eisenlohr, R. Barabash, W. Liu, M. R. Stoudt, M. A. Crimp, T. R. Bieler

Research output: Research - peer-reviewArticle

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Abstract

Heterogeneous deformation, including local dislocation shear activity and lattice rotation, was analyzed in microstructure patches of polycrystalline commercial purity titanium specimens using three different experimental methods. The measurements were compared with crystal plasticity finite element simulations for the same region that incorporate a local phenomenological hardening constitutive model. The dislocation activity was measured using techniques associated with atomic force microscopy, confocal microscopy, three-dimensional x-ray diffraction, and nano-indentation. The results indicate that a major challenge for model development is to effectively predict conditions where slip transfer occurs, and where geometrically necessary dislocations accumulate.

LanguageEnglish (US)
Pages66-73
Number of pages8
JournalJOM
Volume63
Issue number9
DOIs
StatePublished - Sep 2011

Profile

Confocal microscopy
Nanoindentation
Titanium
Constitutive models
Plasticity
Hardening
Atomic force microscopy
Diffraction
X rays
Crystals
Microstructure

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Cite this

Characterization and modeling of heterogeneous deformation in commercial purity titanium. / Yang, Y.; Wang, L.; Zambaldi, C.; Eisenlohr, P.; Barabash, R.; Liu, W.; Stoudt, M. R.; Crimp, M. A.; Bieler, T. R.

In: JOM, Vol. 63, No. 9, 09.2011, p. 66-73.

Research output: Research - peer-reviewArticle

Yang, Y, Wang, L, Zambaldi, C, Eisenlohr, P, Barabash, R, Liu, W, Stoudt, MR, Crimp, MA & Bieler, TR 2011, 'Characterization and modeling of heterogeneous deformation in commercial purity titanium' JOM, vol 63, no. 9, pp. 66-73. DOI: 10.1007/s11837-011-0161-8
Yang Y, Wang L, Zambaldi C, Eisenlohr P, Barabash R, Liu W et al. Characterization and modeling of heterogeneous deformation in commercial purity titanium. JOM. 2011 Sep;63(9):66-73. Available from, DOI: 10.1007/s11837-011-0161-8
Yang, Y. ; Wang, L. ; Zambaldi, C. ; Eisenlohr, P. ; Barabash, R. ; Liu, W. ; Stoudt, M. R. ; Crimp, M. A. ; Bieler, T. R./ Characterization and modeling of heterogeneous deformation in commercial purity titanium. In: JOM. 2011 ; Vol. 63, No. 9. pp. 66-73
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