Individual phase constitutive properties of a TRIP-assisted QP980 steel from a combined synchrotron X-ray diffraction and crystal plasticity approach

doi:https://doi.org/10.1016/j.actamat.2017.04.028

Title: Individual phase constitutive properties of a TRIP-assisted QP980 steel from a combined synchrotron X-ray diffraction and crystal plasticity approach

Abstract

Here, microstructure-based constitutive models for multiphase steels require accurate constitutive properties of the individual phases for component forming and performance simulations. We address this requirement with a combined experimental/theoretical methodology which determines the critical resolved shear stresses and hardening parameters of the constituent phases in QP980, a TRIP assisted steel subject to a two-step quenching and partitioning heat treatment. High energy X-Ray diffraction (HEXRD) from a synchrotron source provided the average lattice strains of the ferrite, martensite, and austenite phases from the measured volume during in situ tensile deformation. The HEXRD data was then input to a computationally efficient, elastic-plastic self-consistent (EPSC) crystal plasticity model which estimated the constitutive parameters of different slip systems for the three phases via a trial-and-error approach. The EPSC-estimated parameters are then input to a finite element crystal plasticity (CPFE) model representing the QP980 tensile sample. The predicted lattice strains and global stress versus strain curves are found to be 8% lower that the EPSC model predicted values and from the HEXRD measurements, respectively. This discrepancy, which is attributed to the stiff secant assumption in the EPSC formulation, is resolved with a second step in which CPFE is used to iteratively refine the EPSC-estimated parameters.more »« less

Authors:

^[1]; Sun, X. ^[1]; Hector, Jr., L. G. ^[2]; Ren, Y. ^[3]

Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
GM R&D, Warren, MI (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)

Publication Date:: 2017-04-21

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Scientific User Facilities Division; USDOE

OSTI Identifier:: 1364401

Alternate Identifier(s):: OSTI ID: 1550521

Grant/Contract Number:: AC02-06CH11357; EE0005976; AC06-76RL01830

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Acta Materialia

Additional Journal Information:: Journal Volume: 132; Journal Issue: C; Journal ID: ISSN 1359-6454

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; CRSS and hardening parameters; quench and partitioning steels; crystal plasticity finite element model; elastic plastic self-consistent model; synchrotron radiation; x-ray diffraction

Citation Formats


                    Hu, Xiao Hua, Sun, X., Hector, Jr., L. G., and Ren, Y. Individual phase constitutive properties of a TRIP-assisted QP980 steel from a combined synchrotron X-ray diffraction and crystal plasticity approach.  United States: N. p., 2017. 
        Web.  doi:10.1016/j.actamat.2017.04.028.

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                    Hu, Xiao Hua, Sun, X., Hector, Jr., L. G., & Ren, Y. Individual phase constitutive properties of a TRIP-assisted QP980 steel from a combined synchrotron X-ray diffraction and crystal plasticity approach.  United States.  https://doi.org/10.1016/j.actamat.2017.04.028

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                    Hu, Xiao Hua, Sun, X., Hector, Jr., L. G., and Ren, Y. Fri .  
        "Individual phase constitutive properties of a TRIP-assisted QP980 steel from a combined synchrotron X-ray diffraction and crystal plasticity approach".  United States.  https://doi.org/10.1016/j.actamat.2017.04.028.  https://www.osti.gov/servlets/purl/1364401.

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@article{osti_1364401,

  title        = {Individual phase constitutive properties of a TRIP-assisted QP980 steel from a combined synchrotron X-ray diffraction and crystal plasticity approach},

  author       = {Hu, Xiao Hua and Sun, X. and Hector, Jr., L. G. and Ren, Y.},

  abstractNote = {Here, microstructure-based constitutive models for multiphase steels require accurate constitutive properties of the individual phases for component forming and performance simulations. We address this requirement with a combined experimental/theoretical methodology which determines the critical resolved shear stresses and hardening parameters of the constituent phases in QP980, a TRIP assisted steel subject to a two-step quenching and partitioning heat treatment. High energy X-Ray diffraction (HEXRD) from a synchrotron source provided the average lattice strains of the ferrite, martensite, and austenite phases from the measured volume during in situ tensile deformation. The HEXRD data was then input to a computationally efficient, elastic-plastic self-consistent (EPSC) crystal plasticity model which estimated the constitutive parameters of different slip systems for the three phases via a trial-and-error approach. The EPSC-estimated parameters are then input to a finite element crystal plasticity (CPFE) model representing the QP980 tensile sample. The predicted lattice strains and global stress versus strain curves are found to be 8% lower that the EPSC model predicted values and from the HEXRD measurements, respectively. This discrepancy, which is attributed to the stiff secant assumption in the EPSC formulation, is resolved with a second step in which CPFE is used to iteratively refine the EPSC-estimated parameters. Remarkably close agreement is obtained between the theoretically-predicted and experimentally derived flow curve for the QP980 material.},

  doi          = {10.1016/j.actamat.2017.04.028},

  url          = {https://www.osti.gov/biblio/1364401},
  journal      = {Acta Materialia},

  issn         = {1359-6454},

  number       = C,

  volume       = 132,

  place        = {United States},

  year         = {2017},

  month        = {4}

}

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https://doi.org/10.1016/j.actamat.2017.04.028

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Works referencing / citing this record:

The TRIP Effect and Its Application in Cold Formable Sheet Steels: The TRIP Effect and Its Application in Cold Formable
journal, August 2017

Bleck, Wolfgang; Guo, Xiaofei; Ma, Yan
steel research international, Vol. 88, Issue 10
https://doi.org/10.1002/srin.201700218

In Situ Local Measurement of Austenite Mechanical Stability and Transformation Behavior in Third-Generation Advanced High-Strength Steels
journal, May 2018

Abu-Farha, Fadi; Hu, Xiaohua; Sun, Xin
Metallurgical and Materials Transactions A, Vol. 49, Issue 7
https://doi.org/10.1007/s11661-018-4660-x

Strain Rate Effect on Tensile Flow Behavior and Anisotropy of a Medium-Manganese TRIP Steel
journal, April 2018

Alturk, Rakan; Hector, Louis G.; Matthew Enloe, C.
JOM, Vol. 70, Issue 6
https://doi.org/10.1007/s11837-018-2830-3

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Title: Individual phase constitutive properties of a TRIP-assisted QP980 steel from a combined synchrotron X-ray diffraction and crystal plasticity approach

Abstract

Citation Formats

The TRIP Effect and Its Application in Cold Formable Sheet Steels: The TRIP Effect and Its Application in Cold Formable journal, August 2017

In Situ Local Measurement of Austenite Mechanical Stability and Transformation Behavior in Third-Generation Advanced High-Strength Steels journal, May 2018

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journal, August 2017

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journal, May 2018

Strain Rate Effect on Tensile Flow Behavior and Anisotropy of a Medium-Manganese TRIP Steel
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