Strain heterogeneity and damage nucleation at grain boundaries during monotonic deformation in commercial purity titanium

T. R. Bieler, M. A. Crimp, Y. Yang, L. Wang, P. Eisenlohr, D. E. Mason, W. Liu, G. E. Ice

Research output: Contribution to journalArticle

  • 24 Citations

Abstract

Heterogeneous strain was analyzed in polycrystalline, commercial-purity titanium using many experimental techniques that provide information about microstructure, dislocation arrangement, grain orientation, orientation gradients, surface topography, and local strain gradients. The recrystallized microstructure with 50-200 μm grains was extensively characterized before and after deformation using 4-point bending to strains between 2% and 15%. Extremely heterogeneous deformation occurred along some grain boundaries, leading to orientation gradients exceeding 10° over 10-20 μm. Patches of highly characterized micro-structure were modeled using crystal plasticity finite element (CPFE) analysis to simulate the deformation to evaluate the ability of the CPFE model to capture local deformation processes. Damage nucleation events were identified that are associated with twin interactions with grain boundaries. Progress toward identifying fracture initiation criteria based upon slip and twin interactions with grain boundaries is illustrated with related CPFE simulations of deformation in a TiAl alloy.

Original languageEnglish (US)
Pages (from-to)45-52
Number of pages8
JournalJOM
Volume61
Issue number12
DOIs
StatePublished - 2009

Profile

Carbamyl Phosphate
Carbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)
Grain boundaries
Cinanserin
Carcinoid Tumor
Microstructure
Plasticity
Crystals
Hospital Dental Service
Nucleation
Titanium
Relapsing Fever
Anthralin
Abdominal Injuries
Cimetidine
Differential Scanning Calorimetry
Crystal orientation
Bending (deformation)
Surface topography
Finite element method

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Cite this

Strain heterogeneity and damage nucleation at grain boundaries during monotonic deformation in commercial purity titanium. / Bieler, T. R.; Crimp, M. A.; Yang, Y.; Wang, L.; Eisenlohr, P.; Mason, D. E.; Liu, W.; Ice, G. E.

In: JOM, Vol. 61, No. 12, 2009, p. 45-52.

Research output: Contribution to journalArticle

Bieler, T. R.; Crimp, M. A.; Yang, Y.; Wang, L.; Eisenlohr, P.; Mason, D. E.; Liu, W.; Ice, G. E. / Strain heterogeneity and damage nucleation at grain boundaries during monotonic deformation in commercial purity titanium.

In: JOM, Vol. 61, No. 12, 2009, p. 45-52.

Research output: Contribution to journalArticle

@article{7dde5ba6f03549e3852fdbe21ede2e41,
title = "Strain heterogeneity and damage nucleation at grain boundaries during monotonic deformation in commercial purity titanium",
abstract = "Heterogeneous strain was analyzed in polycrystalline, commercial-purity titanium using many experimental techniques that provide information about microstructure, dislocation arrangement, grain orientation, orientation gradients, surface topography, and local strain gradients. The recrystallized microstructure with 50-200 μm grains was extensively characterized before and after deformation using 4-point bending to strains between 2% and 15%. Extremely heterogeneous deformation occurred along some grain boundaries, leading to orientation gradients exceeding 10° over 10-20 μm. Patches of highly characterized micro-structure were modeled using crystal plasticity finite element (CPFE) analysis to simulate the deformation to evaluate the ability of the CPFE model to capture local deformation processes. Damage nucleation events were identified that are associated with twin interactions with grain boundaries. Progress toward identifying fracture initiation criteria based upon slip and twin interactions with grain boundaries is illustrated with related CPFE simulations of deformation in a TiAl alloy.",
author = "Bieler, {T. R.} and Crimp, {M. A.} and Y. Yang and L. Wang and P. Eisenlohr and Mason, {D. E.} and W. Liu and Ice, {G. E.}",
year = "2009",
doi = "10.1007/s11837-009-0180-x",
volume = "61",
pages = "45--52",
journal = "JOM",
issn = "1047-4838",
publisher = "Minerals, Metals and Materials Society",
number = "12",

}

TY - JOUR

T1 - Strain heterogeneity and damage nucleation at grain boundaries during monotonic deformation in commercial purity titanium

AU - Bieler,T. R.

AU - Crimp,M. A.

AU - Yang,Y.

AU - Wang,L.

AU - Eisenlohr,P.

AU - Mason,D. E.

AU - Liu,W.

AU - Ice,G. E.

PY - 2009

Y1 - 2009

N2 - Heterogeneous strain was analyzed in polycrystalline, commercial-purity titanium using many experimental techniques that provide information about microstructure, dislocation arrangement, grain orientation, orientation gradients, surface topography, and local strain gradients. The recrystallized microstructure with 50-200 μm grains was extensively characterized before and after deformation using 4-point bending to strains between 2% and 15%. Extremely heterogeneous deformation occurred along some grain boundaries, leading to orientation gradients exceeding 10° over 10-20 μm. Patches of highly characterized micro-structure were modeled using crystal plasticity finite element (CPFE) analysis to simulate the deformation to evaluate the ability of the CPFE model to capture local deformation processes. Damage nucleation events were identified that are associated with twin interactions with grain boundaries. Progress toward identifying fracture initiation criteria based upon slip and twin interactions with grain boundaries is illustrated with related CPFE simulations of deformation in a TiAl alloy.

AB - Heterogeneous strain was analyzed in polycrystalline, commercial-purity titanium using many experimental techniques that provide information about microstructure, dislocation arrangement, grain orientation, orientation gradients, surface topography, and local strain gradients. The recrystallized microstructure with 50-200 μm grains was extensively characterized before and after deformation using 4-point bending to strains between 2% and 15%. Extremely heterogeneous deformation occurred along some grain boundaries, leading to orientation gradients exceeding 10° over 10-20 μm. Patches of highly characterized micro-structure were modeled using crystal plasticity finite element (CPFE) analysis to simulate the deformation to evaluate the ability of the CPFE model to capture local deformation processes. Damage nucleation events were identified that are associated with twin interactions with grain boundaries. Progress toward identifying fracture initiation criteria based upon slip and twin interactions with grain boundaries is illustrated with related CPFE simulations of deformation in a TiAl alloy.

UR - http://www.scopus.com/inward/record.url?scp=75749122301&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=75749122301&partnerID=8YFLogxK

U2 - 10.1007/s11837-009-0180-x

DO - 10.1007/s11837-009-0180-x

M3 - Article

VL - 61

SP - 45

EP - 52

JO - JOM

T2 - JOM

JF - JOM

SN - 1047-4838

IS - 12

ER -