Details
| Original language | English |
|---|---|
| Title of host publication | TMS 2017 146th Annual Meeting |
| Publisher | Springer International Publishing AG |
| Pages | 203-210 |
| Number of pages | 8 |
| ISBN (print) | 9783319514925 |
| Publication status | Published - 1 Jan 2017 |
| Event | 146th Annual Meeting and Exhibition Supplemental, TMS 2017 - San Diego, United States Duration: 26 Feb 2017 → 2 Mar 2017 |
Publication series
| Name | Minerals, Metals and Materials Series |
|---|---|
| Volume | Part F6 |
| ISSN (Print) | 2367-1181 |
| ISSN (electronic) | 2367-1696 |
Abstract
In sheet-bulk metal forming processes the hardening behavior of the material depends on the sequence of deformation steps and the type of deformation. Loading path changes induce transient hardening phenomena. These phenomena are linked to the formation and interaction of oriented dislocation structures. The aim of this study is to investigate the effect of continuous and discontinuous loading path changes on the dislocation microstructure in ferritic and ferritic-martensitic dual-phase steel, respectively. For the experiments a biaxial test stand was used, which permits to continuously change the load from tension to shear. In the ferrite single-phase steel transmission-electron microscopy reveals a reduced evolution of oriented dislocation structures for continuous loading path changes compared to discontinuous loading path changes. This evolution is further decreased in dual-phase steel compared to the ferritic steel. Microstructural results for the ferritic steel are accompanied by simulation results with a transient hardening model.
Keywords
- Dislocation structures, Material modeling, Parameter identification, Sheet-bulk metal forming
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Mechanics of Materials
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Materials Chemistry
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TMS 2017 146th Annual Meeting. Springer International Publishing AG, 2017. p. 203-210 (Minerals, Metals and Materials Series; Vol. Part F6).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Analysis of dislocation structures in ferritic and dual phase steels regarding continuous and discontinuous loading paths
AU - Gerstein, Gregory
AU - Clausmeyer, Till
AU - Gutknecht, Florian
AU - Tekkaya, A. Erman
AU - Nürnberger, Florian
N1 - Funding information: Funding by the German Research Foundation (DFG) within the scope of the Transregional Collaborative Research Centre on sheet-bulk metal forming (SFB/TR 73) in the subproject C4 ‘Analysis of load history dependent evolution of damage and microstructure for the numerical design of sheet-bulk metal forming processes’ is highly acknowledged.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - In sheet-bulk metal forming processes the hardening behavior of the material depends on the sequence of deformation steps and the type of deformation. Loading path changes induce transient hardening phenomena. These phenomena are linked to the formation and interaction of oriented dislocation structures. The aim of this study is to investigate the effect of continuous and discontinuous loading path changes on the dislocation microstructure in ferritic and ferritic-martensitic dual-phase steel, respectively. For the experiments a biaxial test stand was used, which permits to continuously change the load from tension to shear. In the ferrite single-phase steel transmission-electron microscopy reveals a reduced evolution of oriented dislocation structures for continuous loading path changes compared to discontinuous loading path changes. This evolution is further decreased in dual-phase steel compared to the ferritic steel. Microstructural results for the ferritic steel are accompanied by simulation results with a transient hardening model.
AB - In sheet-bulk metal forming processes the hardening behavior of the material depends on the sequence of deformation steps and the type of deformation. Loading path changes induce transient hardening phenomena. These phenomena are linked to the formation and interaction of oriented dislocation structures. The aim of this study is to investigate the effect of continuous and discontinuous loading path changes on the dislocation microstructure in ferritic and ferritic-martensitic dual-phase steel, respectively. For the experiments a biaxial test stand was used, which permits to continuously change the load from tension to shear. In the ferrite single-phase steel transmission-electron microscopy reveals a reduced evolution of oriented dislocation structures for continuous loading path changes compared to discontinuous loading path changes. This evolution is further decreased in dual-phase steel compared to the ferritic steel. Microstructural results for the ferritic steel are accompanied by simulation results with a transient hardening model.
KW - Dislocation structures
KW - Material modeling
KW - Parameter identification
KW - Sheet-bulk metal forming
UR - http://www.scopus.com/inward/record.url?scp=85042367722&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-51493-2_20
DO - 10.1007/978-3-319-51493-2_20
M3 - Conference contribution
AN - SCOPUS:85042367722
SN - 9783319514925
T3 - Minerals, Metals and Materials Series
SP - 203
EP - 210
BT - TMS 2017 146th Annual Meeting
PB - Springer International Publishing AG
T2 - 146th Annual Meeting and Exhibition Supplemental, TMS 2017
Y2 - 26 February 2017 through 2 March 2017
ER -