Crystal plasticity based constitutive modeling of ZEK100 magnesium alloy combined with in-situ HEXRD experiments

Bong, Hyuk Jong; Hu, Xiaohua; Sun, Xin; Ren, Y.; Mishra, Raj K.

doi:10.1088/1742-6596/1063/1/012031

Title: Crystal plasticity based constitutive modeling of ZEK100 magnesium alloy combined with in-situ HEXRD experiments

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Abstract

In the current works, both micro- and macro-mechanical properties of a hexagonal close-packed (HCP) polycrystalline ZEK100 magnesium alloy were investigated. In the experimental perspective, in-situ high energy X-ray diffraction (HEXRD) from a synchrotron source was conducted during the uniaxial tension along the rolling direction (RD) and the transverse direction (TD) to measure the lattice strain evolutions and stress-strain behaviors. In the modeling perspective, crystal plasticity finite element (CPFE) model was developed incorporating the deformation twinning for the HCP-structured metals. The HEXRD experiments and crystal plasticity models were then coupled to characterize the constitutive behaviors of the ZEK100 alloy. The lattice strain data representing the microscopic behavior of the material and the macroscopic stress-strain behavior were then tied together as objective values to estimate the critical resolved shear stress (CRSS) and hardening parameters of available slip and twin systems of the ZEK100 alloy using the developed CPFE model. The stress-strain behavior as well as the lattice strain variation during the uniaxial tension tests are presented using the CPFE model and compared with the actual HEXRD data.

Authors:

Bong, Hyuk Jong ^[1]; Hu, Xiaohua ^[2]; Sun, Xin ^[3]; Ren, Y. ^[4]; Mishra, Raj K. ^[5]

Korea Institute of Materials Science, Gyeongnam (South Korea). Aluminum Department; Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Computational Engineering
Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Computational Engineering; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Energy and Transportation Science Division
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Energy and Transportation Science Division
Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
General Motors Research & Development, MI (United States)

Publication Date:: Sun Jul 01 00:00:00 EDT 2018

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1468055

Grant/Contract Number:: AC05-00OR22725; EE0007756; AC02-06CH11357; AC06-76RL01830

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Physics. Conference Series

Additional Journal Information:: Journal Volume: 1063; Journal Issue: 1; Journal ID: ISSN 1742-6588

Publisher:: IOP Publishing

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Bong, Hyuk Jong, Hu, Xiaohua, Sun, Xin, Ren, Y., and Mishra, Raj K. Crystal plasticity based constitutive modeling of ZEK100 magnesium alloy combined with in-situ HEXRD experiments.  United States: N. p., 2018. 
Web.  doi:10.1088/1742-6596/1063/1/012031.

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                    Bong, Hyuk Jong, Hu, Xiaohua, Sun, Xin, Ren, Y., & Mishra, Raj K. Crystal plasticity based constitutive modeling of ZEK100 magnesium alloy combined with in-situ HEXRD experiments.  United States.  https://doi.org/10.1088/1742-6596/1063/1/012031

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                    Bong, Hyuk Jong, Hu, Xiaohua, Sun, Xin, Ren, Y., and Mishra, Raj K. Sun .  
"Crystal plasticity based constitutive modeling of ZEK100 magnesium alloy combined with in-situ HEXRD experiments".  United States.  https://doi.org/10.1088/1742-6596/1063/1/012031.  https://www.osti.gov/servlets/purl/1468055.

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@article{osti_1468055,

  title        = {Crystal plasticity based constitutive modeling of ZEK100 magnesium alloy combined with in-situ HEXRD experiments},

  author       = {Bong, Hyuk Jong and Hu, Xiaohua and Sun, Xin and Ren, Y. and Mishra, Raj K.},

  abstractNote = {In the current works, both micro- and macro-mechanical properties of a hexagonal close-packed (HCP) polycrystalline ZEK100 magnesium alloy were investigated. In the experimental perspective, in-situ high energy X-ray diffraction (HEXRD) from a synchrotron source was conducted during the uniaxial tension along the rolling direction (RD) and the transverse direction (TD) to measure the lattice strain evolutions and stress-strain behaviors. In the modeling perspective, crystal plasticity finite element (CPFE) model was developed incorporating the deformation twinning for the HCP-structured metals. The HEXRD experiments and crystal plasticity models were then coupled to characterize the constitutive behaviors of the ZEK100 alloy. The lattice strain data representing the microscopic behavior of the material and the macroscopic stress-strain behavior were then tied together as objective values to estimate the critical resolved shear stress (CRSS) and hardening parameters of available slip and twin systems of the ZEK100 alloy using the developed CPFE model. The stress-strain behavior as well as the lattice strain variation during the uniaxial tension tests are presented using the CPFE model and compared with the actual HEXRD data.},

  doi          = {10.1088/1742-6596/1063/1/012031},

  journal      = {Journal of Physics. Conference Series},

  number       = 1,

  volume       = 1063,

  place        = {United States},

  year         = {Sun Jul 01 00:00:00 EDT 2018},

  month        = {Sun Jul 01 00:00:00 EDT 2018}

}

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