| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Neutron and X-ray Scattering in Materials Science and Engineering
|
| Presentation Title |
The influence of grain size on the deformation-induced martensitic transformation in austenitic steels: from grain-average to single-grain behavior studied by in-situ high-energy synchrotron X-ray diffraction. |
| Author(s) |
Chen Cai, Benjamin Neding, Gaoming Zhu, Peter Hedström |
| On-Site Speaker (Planned) |
Chen Cai |
| Abstract Scope |
Non-destructive in-situ measurements of microstructure evolution in austenitic steels during tensile loading was conducted by high-energy synchrotron x-ray diffraction. The formation and evolution of ε-martensite and α’-martensite were quantified by Rietveld refinement for grain-averaged diffraction data for on the one hand a fine grained and on the other a coarse grained specimen at high strain. Moreover, for the coarse grained specimen, single-grain data was also collected by a combining far-field and near-field HEDM at low applied strain. The combination of these time-resolved grain-average and single-grain diffraction results allowed for the determination of relationship between macroscopic deformation and deformation-induced martensitic transformation and the effect of grain size in austenitic steels. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, |