Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
| Publication date | 2008 |
|---|---|
| Host publication | New Developments on Metallurgy and Applications of High Strength Steels, Buenos Aires 2008 - Proc. Int. Conf. New Developments on Metallurgy and Applications of High Strength Steels |
| Pages | 805-812 |
| Number of pages | 8 |
| Volume | 2 Physical Metallurgy and Alloy Design |
| <mark>Original language</mark> | English |
| Event | International Conference on New Developments on Metallurgy and Applications of High Strength Steels, Buenos Aires 2008 - Buenos Aires, Argentina Duration: 26/05/2008 → 28/05/2008 |
| Conference | International Conference on New Developments on Metallurgy and Applications of High Strength Steels, Buenos Aires 2008 |
|---|---|
| Country/Territory | Argentina |
| City | Buenos Aires |
| Period | 26/05/08 → 28/05/08 |
| Conference | International Conference on New Developments on Metallurgy and Applications of High Strength Steels, Buenos Aires 2008 |
|---|---|
| Country/Territory | Argentina |
| City | Buenos Aires |
| Period | 26/05/08 → 28/05/08 |
A novel grain size dependent strain hardening model is derived from the theory of irreversible thermodynamics. The model yields the evolution of the dislocation densities in the grain interior and at the grain boundary, as well as their contributions to the flow stress. It is found that sub-micron grain sizes have a lower dislocation density in the grain interior, causing ductility to decrease greatly. The predicted stress-strain curve shapes, uniform elongation and ultimate tensile strength values for interstitial free steels show good agreement with experimental observations.