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

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:
ORCiD logo [1];  [2];  [3];  [4];  [5];  [1]
  1. Univ. of Sao Paulo (Brazil)
  2. Federal Univ. of ABC (Brazil). Center of Engineering, Modelling and Applied Social Sciences
  3. Univ. of Sao Paulo (Brazil); Delft Univ. of Technology (Netherlands)
  4. Univ. Tecnológica de Pereira (Colombia). Mechanical Technology Program
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (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.
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
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.
@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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Free Publicly Available Full Text
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Cited by: 19 works
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Works referencing / citing this record:

A robust method for mechanical characterization of heterogeneous materials by nanoindentation grid analysis
journal, September 2020