Development of a new generation of quench and partitioning steels: Influence of processing parameters on texture, nanoindentation, and mechanical properties

Ariza-Echeverri, E. A.; Masoumi, M.; Nishikawa, A. S.; Mesa, D. H.; Marquez Rossy, Andres; Tschiptschin, A. P.

doi:10.1016/j.matdes.2019.108329

Title: Development of a new generation of quench and partitioning steels: Influence of processing parameters on texture, nanoindentation, and mechanical properties

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Abstract

A novel quenching and partitioning process (Q&P) including the hot stamping (HS) process was studied, using two stamping temperatures (750 °C and 800 °C) and two quenching temperatures (318 °C and 328 °C). This combination is here called Hot Stamping and Quenching and Partitioning process (HSQ&P). The partitioning step was performed at 400 °C for 100 s in all cycles. Microstructural features were comprehensively studied using electron backscattered diffraction and nanoindentation techniques. HSQ&P samples showed a good combination of ductility and high-strength due to the presence of: retained austenite, inter-critical ferrite with low stored internal strain energy, grain refinement via DIFT-effect (deformation induced ferrite transformation), martensite, and bainite. Significant internal stress relief was caused by carbon partitioning, which was induced by the DIFT-effect and the partitioning stage. This also led to a considerable stored energy, which was characterized by the Kernel average dislocation and geometrically necessary dislocation analysis. In addition, predominant {110}//strain direction crystallographic texture was identified, which promotes slip deformation and enhances the mechanical properties. Moreover, remarkable amounts of fine film-like retained austenite oriented along compact crystallographic directions (i.e., $$\langle$$111$$\rangle$$ and $$\langle$$112$$\rangle$$) were observed. Finally, subsize tensile test verified the optimum mechanical behavior of HSQ&P specimens.

Authors:

^[1]; Masoumi, M. ^[2]; Nishikawa, A. S. ^[3]; Mesa, D. H. ^[4]; Marquez Rossy, Andres ^[5]; Tschiptschin, A. P. ^[1]

Univ. of Sao Paulo (Brazil)
Federal Univ. of ABC (Brazil). Center of Engineering, Modelling and Applied Social Sciences
Univ. of Sao Paulo (Brazil); Delft Univ. of Technology (Netherlands)
Univ. Tecnológica de Pereira (Colombia). Mechanical Technology Program
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: 2019-11-06

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1606777

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Materials & Design

Additional Journal Information:: Journal Volume: 186; Journal Issue: C; Journal ID: ISSN 0264-1275

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Nanoindentation; EBSDTRIP-steel; Crystallographic texture; Subsize tensile test

Citation Formats


                    Ariza-Echeverri, E. A., Masoumi, M., Nishikawa, A. S., Mesa, D. H., Marquez Rossy, Andres, and Tschiptschin, A. P. Development of a new generation of quench and partitioning steels: Influence of processing parameters on texture, nanoindentation, and mechanical properties.  United States: N. p., 2019. 
        Web.  doi:10.1016/j.matdes.2019.108329.

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                    Ariza-Echeverri, E. A., Masoumi, M., Nishikawa, A. S., Mesa, D. H., Marquez Rossy, Andres, & Tschiptschin, A. P. Development of a new generation of quench and partitioning steels: Influence of processing parameters on texture, nanoindentation, and mechanical properties.  United States.  https://doi.org/10.1016/j.matdes.2019.108329

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                    Ariza-Echeverri, E. A., Masoumi, M., Nishikawa, A. S., Mesa, D. H., Marquez Rossy, Andres, and Tschiptschin, A. P. 2019.  
        "Development of a new generation of quench and partitioning steels: Influence of processing parameters on texture, nanoindentation, and mechanical properties".  United States.  https://doi.org/10.1016/j.matdes.2019.108329.  https://www.osti.gov/servlets/purl/1606777.

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@article{osti_1606777,

  title        = {Development of a new generation of quench and partitioning steels: Influence of processing parameters on texture, nanoindentation, and mechanical properties},

  author       = {Ariza-Echeverri, E. A. and Masoumi, M. and Nishikawa, A. S. and Mesa, D. H. and Marquez Rossy, Andres and Tschiptschin, A. P.},

  abstractNote = {A novel quenching and partitioning process (Q&P) including the hot stamping (HS) process was studied, using two stamping temperatures (750 °C and 800 °C) and two quenching temperatures (318 °C and 328 °C). This combination is here called Hot Stamping and Quenching and Partitioning process (HSQ&P). The partitioning step was performed at 400 °C for 100 s in all cycles. Microstructural features were comprehensively studied using electron backscattered diffraction and nanoindentation techniques. HSQ&P samples showed a good combination of ductility and high-strength due to the presence of: retained austenite, inter-critical ferrite with low stored internal strain energy, grain refinement via DIFT-effect (deformation induced ferrite transformation), martensite, and bainite. Significant internal stress relief was caused by carbon partitioning, which was induced by the DIFT-effect and the partitioning stage. This also led to a considerable stored energy, which was characterized by the Kernel average dislocation and geometrically necessary dislocation analysis. In addition, predominant {110}//strain direction crystallographic texture was identified, which promotes slip deformation and enhances the mechanical properties. Moreover, remarkable amounts of fine film-like retained austenite oriented along compact crystallographic directions (i.e., $\langle$111$\rangle$ and $\langle$112$\rangle$) were observed. Finally, subsize tensile test verified the optimum mechanical behavior of HSQ&P specimens.},

  doi          = {10.1016/j.matdes.2019.108329},

  url          = {https://www.osti.gov/biblio/1606777},
  journal      = {Materials & Design},

  issn         = {0264-1275},

  number       = C,

  volume       = 186,

  place        = {United States},

  year         = {2019},

  month        = {11}

}

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