Details
| Original language | English |
|---|---|
| Pages (from-to) | 1583-1591 |
| Number of pages | 9 |
| Journal | Steel research international |
| Volume | 87 |
| Issue number | 12 |
| Publication status | Published - 4 Apr 2016 |
Abstract
This paper presents investigations on the characterization of ductile damage and identification of the porosity-related material model parameters in a dual-phase steel DP600. As a modeling reference for the damage evolution, a variant from the Gurson model family is taken. The micromechanical investigations related to nucleation and growth of voids have been carried out. In order to show the void-volume evolution during the deformation, post-mortem scanning electron microscope (SEM) analysis of a notched tensile test is used. Using the ion beam slope cutting methodology to prepare the specimens for SEM analysis, the microstructure can be observed in 2D including the voids. In this way, for the dual-phase steel, characteristic damage behavior upon deformation due to interaction of martensite and ferrite can be investigated. The minimum void size (areal) that can be measured is 0.05 µm2. This resolution of the measurements provides the detection of the newly nucleated voids. For the related material parameters, void-size relevant criterion is applied to determine the newly nucleated voids at a certain plastic strain.
Keywords
- dual-phase steel, ductile damage, ion beam slope cutting, scanning electron microscopy, void nucleation
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Materials Chemistry
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In: Steel research international, Vol. 87, No. 12, 04.04.2016, p. 1583-1591.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Evaluation of Void Nucleation and Development during Plastic Deformation of Dual-Phase Steel DP600
AU - Isik, Kerim
AU - Gerstein, Gregory
AU - Clausmeyer, Till
AU - Nürnberger, Florian
AU - Tekkaya, A. Erman
AU - Maier, Hans Jürgen
PY - 2016/4/4
Y1 - 2016/4/4
N2 - This paper presents investigations on the characterization of ductile damage and identification of the porosity-related material model parameters in a dual-phase steel DP600. As a modeling reference for the damage evolution, a variant from the Gurson model family is taken. The micromechanical investigations related to nucleation and growth of voids have been carried out. In order to show the void-volume evolution during the deformation, post-mortem scanning electron microscope (SEM) analysis of a notched tensile test is used. Using the ion beam slope cutting methodology to prepare the specimens for SEM analysis, the microstructure can be observed in 2D including the voids. In this way, for the dual-phase steel, characteristic damage behavior upon deformation due to interaction of martensite and ferrite can be investigated. The minimum void size (areal) that can be measured is 0.05 µm2. This resolution of the measurements provides the detection of the newly nucleated voids. For the related material parameters, void-size relevant criterion is applied to determine the newly nucleated voids at a certain plastic strain.
AB - This paper presents investigations on the characterization of ductile damage and identification of the porosity-related material model parameters in a dual-phase steel DP600. As a modeling reference for the damage evolution, a variant from the Gurson model family is taken. The micromechanical investigations related to nucleation and growth of voids have been carried out. In order to show the void-volume evolution during the deformation, post-mortem scanning electron microscope (SEM) analysis of a notched tensile test is used. Using the ion beam slope cutting methodology to prepare the specimens for SEM analysis, the microstructure can be observed in 2D including the voids. In this way, for the dual-phase steel, characteristic damage behavior upon deformation due to interaction of martensite and ferrite can be investigated. The minimum void size (areal) that can be measured is 0.05 µm2. This resolution of the measurements provides the detection of the newly nucleated voids. For the related material parameters, void-size relevant criterion is applied to determine the newly nucleated voids at a certain plastic strain.
KW - dual-phase steel
KW - ductile damage
KW - ion beam slope cutting
KW - scanning electron microscopy
KW - void nucleation
UR - http://www.scopus.com/inward/record.url?scp=84962703714&partnerID=8YFLogxK
U2 - 10.1002/srin.201500483
DO - 10.1002/srin.201500483
M3 - Article
AN - SCOPUS:84962703714
VL - 87
SP - 1583
EP - 1591
JO - Steel research international
JF - Steel research international
SN - 1611-3683
IS - 12
ER -