Paper Title:
Effect of Initial Grain Size on the Dynamic Recrystallization Behaviours of Austenite
| Periodical | Materials Science Forum (Volumes 561 - 565) |
|---|---|
| Main Theme | PRICM 6 |
| Edited by | Young Won Chang, Nack J. Kim and Chong Soo Lee |
| Pages | 33-36 |
| DOI | 10.4028/www.scientific.net/MSF.561-565.33 |
| Citation | A. Dehghan-Manshadi et al., 2007, Materials Science Forum, 561-565, 33 |
| Online since | October, 2007 |
| Authors | A. Dehghan-Manshadi, Peter D. Hodgson |
| Keywords | Dynamic Recrystallization (DRX), Electron Backscatter Diffraction (EBSD), Hot Deformation, Initial Grain Size, Stainless Steel |
| Price | US$ 28,- |
View full size
Abstract
The effect of initial grain size on the recrystallization behaviour of a type 304 austenitic stainless steel was investigated using hot torsion. Refinement of the initial grain size to 8 μm had a considerable effect on the flow curve shapes, peak and critical strains and also on DRX kinetics, compared with an initial grain size of 35 μm. Microstructural investigations using EBSD suggest a transition from conventional (discontinuous) to continuous dynamic recrystallization with decreasing initial grain size. Also, there was a moderate effect of initial grain size on the DRX grain size.
