Standard

Strain rate dependent dynamic mechanical response of bainitic multiphase steels. / Shakerifard, Behnam; Galan Lopez, Jesus; Taboada Legaza, Mari Carmen; Verleysen, Patricia; A.I. Kestens, Leo.

In: Materials Science and Engineering A, Vol. 745, 2019, p. 279-290.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Shakerifard, B, Galan Lopez, J, Taboada Legaza, MC, Verleysen, P & A.I. Kestens, L 2019, 'Strain rate dependent dynamic mechanical response of bainitic multiphase steels' Materials Science and Engineering A, vol. 745, pp. 279-290. https://doi.org/10.1016/j.msea.2018.12.105

APA

Shakerifard, B., Galan Lopez, J., Taboada Legaza, M. C., Verleysen, P., & A.I. Kestens, L. (2019). Strain rate dependent dynamic mechanical response of bainitic multiphase steels. Materials Science and Engineering A, 745, 279-290. https://doi.org/10.1016/j.msea.2018.12.105

Vancouver

Shakerifard B, Galan Lopez J, Taboada Legaza MC, Verleysen P, A.I. Kestens L. Strain rate dependent dynamic mechanical response of bainitic multiphase steels. Materials Science and Engineering A. 2019;745:279-290. https://doi.org/10.1016/j.msea.2018.12.105

Author

Shakerifard, Behnam ; Galan Lopez, Jesus ; Taboada Legaza, Mari Carmen ; Verleysen, Patricia ; A.I. Kestens, Leo. / Strain rate dependent dynamic mechanical response of bainitic multiphase steels. In: Materials Science and Engineering A. 2019 ; Vol. 745. pp. 279-290.

BibTeX

@article{686247fc0d3247e4b0d9794e2ab41686,
title = "Strain rate dependent dynamic mechanical response of bainitic multiphase steels",
abstract = "Bainitic steels, as a third generation of advanced high strength steels, are potential steel grades for automotive applications. Two grades of bainitic steels with low and high silicon content, with three different thermal treatments per grade and therefore different second phase constituents, are examined under quasi-static and high strain rate deformations. Microstructures are studied by advanced characterization techniques, including X-ray diffraction and scanning electron microscope equipped with an electron backscatter diffraction detector. Subsequently, the quasi-static and dynamic mechanical responses of the steels are correlated to the microstructures. A positive effect of the strain rate is observed for all the examined materials: when the strain rate is increased, both the tensile stress and deformation levels increase, thus also the energy absorption capacity. However, it is shown that the higher the fraction of second phase constituents, the lower the effect of strain rate becomes. In addition, the grain size directly correlates to the strain rate effect too. The phenomenological hardening model of Johnson-Cook is used to simulate the quasi-static and dynamic flow behaviors, allowing to quantify the strain rate sensitivity for each material. A comprehensive literature survey on the strain rate sensitivity of various steel grades reveals that steels with higher strength demonstrate a lower strain rate sensitivity factor. This trend can be approximated by a power law function which clearly is followed by the materials under consideration in this study.",
keywords = "Advanced high strength steels, Bainite, Constitutive modelling, Hopkinson tensile bar, Microstructure, Strain rate sensitivity",
author = "Behnam Shakerifard and {Galan Lopez}, Jesus and {Taboada Legaza}, {Mari Carmen} and Patricia Verleysen and {A.I. Kestens}, Leo",
year = "2019",
doi = "10.1016/j.msea.2018.12.105",
language = "English",
volume = "745",
pages = "279--290",
journal = "Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing",
issn = "0921-5093",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Strain rate dependent dynamic mechanical response of bainitic multiphase steels

AU - Shakerifard, Behnam

AU - Galan Lopez, Jesus

AU - Taboada Legaza, Mari Carmen

AU - Verleysen, Patricia

AU - A.I. Kestens, Leo

PY - 2019

Y1 - 2019

N2 - Bainitic steels, as a third generation of advanced high strength steels, are potential steel grades for automotive applications. Two grades of bainitic steels with low and high silicon content, with three different thermal treatments per grade and therefore different second phase constituents, are examined under quasi-static and high strain rate deformations. Microstructures are studied by advanced characterization techniques, including X-ray diffraction and scanning electron microscope equipped with an electron backscatter diffraction detector. Subsequently, the quasi-static and dynamic mechanical responses of the steels are correlated to the microstructures. A positive effect of the strain rate is observed for all the examined materials: when the strain rate is increased, both the tensile stress and deformation levels increase, thus also the energy absorption capacity. However, it is shown that the higher the fraction of second phase constituents, the lower the effect of strain rate becomes. In addition, the grain size directly correlates to the strain rate effect too. The phenomenological hardening model of Johnson-Cook is used to simulate the quasi-static and dynamic flow behaviors, allowing to quantify the strain rate sensitivity for each material. A comprehensive literature survey on the strain rate sensitivity of various steel grades reveals that steels with higher strength demonstrate a lower strain rate sensitivity factor. This trend can be approximated by a power law function which clearly is followed by the materials under consideration in this study.

AB - Bainitic steels, as a third generation of advanced high strength steels, are potential steel grades for automotive applications. Two grades of bainitic steels with low and high silicon content, with three different thermal treatments per grade and therefore different second phase constituents, are examined under quasi-static and high strain rate deformations. Microstructures are studied by advanced characterization techniques, including X-ray diffraction and scanning electron microscope equipped with an electron backscatter diffraction detector. Subsequently, the quasi-static and dynamic mechanical responses of the steels are correlated to the microstructures. A positive effect of the strain rate is observed for all the examined materials: when the strain rate is increased, both the tensile stress and deformation levels increase, thus also the energy absorption capacity. However, it is shown that the higher the fraction of second phase constituents, the lower the effect of strain rate becomes. In addition, the grain size directly correlates to the strain rate effect too. The phenomenological hardening model of Johnson-Cook is used to simulate the quasi-static and dynamic flow behaviors, allowing to quantify the strain rate sensitivity for each material. A comprehensive literature survey on the strain rate sensitivity of various steel grades reveals that steels with higher strength demonstrate a lower strain rate sensitivity factor. This trend can be approximated by a power law function which clearly is followed by the materials under consideration in this study.

KW - Advanced high strength steels

KW - Bainite

KW - Constitutive modelling

KW - Hopkinson tensile bar

KW - Microstructure

KW - Strain rate sensitivity

UR - http://www.scopus.com/inward/record.url?scp=85059327969&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2018.12.105

DO - 10.1016/j.msea.2018.12.105

M3 - Article

VL - 745

SP - 279

EP - 290

JO - Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing

T2 - Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing

JF - Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing

SN - 0921-5093

ER -

ID: 50232078