Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling

doi:10.1016/j.msea.2018.03.017

Title: Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling

Abstract

The deformation behavior of commercially pure titanium is studied using experiments and a crystal plasticity model. Compression tests along the rolling, transverse, and normal-directions, and tensile tests along the rolling and transverse directions are performed at room temperature to study the activation of slip and twinning in the hexagonal closed packed titanium. A detailed EBSD based statistical analysis of the microstructure is performed to develop statistics of both {10-12} tensile and {11-22} compression twins. A simple Monte Carlo (MC) twin variant selection criterion is proposed within the framework of the visco-plastic self-consistent (VPSC) model with a dislocation density (DD) based law used to describe dislocation hardening. In the model, plasticity is accommodated by prismatic, basal and pyramidal slip modes, and {10-12} tensile and {11-22} compression twinning modes. Thus, the VPSC-MC model successfully captures the experimentally observed activation of low Schmid factor twin variants for both tensile and compression twins modes. The model also predicts macroscopic stress-strain response, texture evolution and twin volume fraction that are in agreement with experimental observations.

Authors:

Wronski, M. ^[1]; Arul Kumar, Mariyappan ^[2]; Capolungo, Laurent ^[2]; McCabe, Rodney J. ^[2]; Wierzbanowski, K. ^[1]; Tome, Carlos N. ^[2]

AGH - Univ. of Science and Technology, Krakow (Poland). Faculty of Physics and Applied Computer Science
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States). Materials Science and Technology Division

Publication Date:: 2018-03-02

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE Office of Science (SC). Basic Energy Sciences (BES) (SC-22); Polish National Science Centre (NCN); Ministry of Science and Higher Education (Poland)

OSTI Identifier:: 1432623

Report Number(s):: LA-UR-17-29636
Journal ID: 0921-5093

Grant/Contract Number:: AC52-06NA25396; FWP-06SCPE401; DEC-2015/19/D/ST8/00818

Resource Type:: Accepted Manuscript

Journal Name:: Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing

Additional Journal Information:: Journal Volume: 724; Journal Issue: C

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 97 MATHEMATICS AND COMPUTING; Crystal plasticity; Twin variant selection; Titanium; Dislocation density

Citation Formats


                    Wronski, M., Arul Kumar, Mariyappan, Capolungo, Laurent, McCabe, Rodney J., Wierzbanowski, K., and Tome, Carlos N. Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling.  United States: N. p., 2018. 
        Web.  doi:10.1016/j.msea.2018.03.017.

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                    Wronski, M., Arul Kumar, Mariyappan, Capolungo, Laurent, McCabe, Rodney J., Wierzbanowski, K., & Tome, Carlos N. Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling.  United States.  doi:10.1016/j.msea.2018.03.017.

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                    Wronski, M., Arul Kumar, Mariyappan, Capolungo, Laurent, McCabe, Rodney J., Wierzbanowski, K., and Tome, Carlos N. Fri .  
        "Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling".  United States.  doi:10.1016/j.msea.2018.03.017.  https://www.osti.gov/servlets/purl/1432623.

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@article{osti_1432623,

  title        = {Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling},

  author       = {Wronski, M. and Arul Kumar, Mariyappan and Capolungo, Laurent and McCabe, Rodney J. and Wierzbanowski, K. and Tome, Carlos N.},

  abstractNote = {The deformation behavior of commercially pure titanium is studied using experiments and a crystal plasticity model. Compression tests along the rolling, transverse, and normal-directions, and tensile tests along the rolling and transverse directions are performed at room temperature to study the activation of slip and twinning in the hexagonal closed packed titanium. A detailed EBSD based statistical analysis of the microstructure is performed to develop statistics of both {10-12} tensile and {11-22} compression twins. A simple Monte Carlo (MC) twin variant selection criterion is proposed within the framework of the visco-plastic self-consistent (VPSC) model with a dislocation density (DD) based law used to describe dislocation hardening. In the model, plasticity is accommodated by prismatic, basal and pyramidal slip modes, and {10-12} tensile and {11-22} compression twinning modes. Thus, the VPSC-MC model successfully captures the experimentally observed activation of low Schmid factor twin variants for both tensile and compression twins modes. The model also predicts macroscopic stress-strain response, texture evolution and twin volume fraction that are in agreement with experimental observations.},

  doi          = {10.1016/j.msea.2018.03.017},

  journal      = {Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing},

  number       = C,

  volume       = 724,

  place        = {United States},

  year         = {2018},

  month        = {3}

}

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DOI: 10.1016/j.msea.2018.03.017

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Figures / Tables:

Figure 1: (a) Initial and (b) 10% RD compressed microstructure, and (c) initial texture of commercially pure titanium considered for the present study. Compression along rolling direction to 10% activates deformation twinning. The microstructural images are obtained from the rolling plane and the inverse pole figure color maps corresponds tomore »

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