| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Analysis of Cross-hardening by High Resolution Orientation Imaging |
| Author(s) |
Till Clausmeyer, Gregory Gerstein, Florian Gutknecht, Florian Nürnberger |
| On-Site Speaker (Planned) |
Till Clausmeyer |
| Abstract Scope |
Sheet metals undergo several loading path changes in sheet-bulk metal forming (SMBF). Ferritic steels an other materials exhibit cross-hardening after orthogonal loading path changes. Cross-hardening is induced by the interaction of currently active dislocations with persistent dislocation structures which have formed during previous loading. The analysis of persistent microstructures requires transmission electron microscopy (TEM) or electron contrast channelling imaging (ECCI). An alternative approach is to apply high-resolution electron backscatter diffraction (EBSD) to detect inter- and intragranular misorientations. These provide information of the substructure in sequences of uniaxial pre-straining followed by simple shear. Such methods are used to detect orthogonal strain path changes in components manufactured by sheet-bulk metal forming. The microstructural evidence is compared with macroscopic stress strain data for the steel DC04. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |