Abstract
A comprehensive characterization of room temperature deformation microstructures was carried out by transmission electron microscopy for ion irradiated and deformed AISI 316LN austenitic stainless steel. Deformation microstructures were produced by a recently developed disk-bend test method and also by a uniaxial tensile test. Cross-slip was dramatically suppressed by the radiation-induced defects and slip occurred predominantly by planar glide of Shockley partial dislocations. Deformed microstructures consisted of piled-up dislocations, nanotwin layers, stacking faults, and defect-reduced dislocation channel bands. Analyses revealed that all these features were different manifestations of the same type of deformation band, namely a composite of overlapping faulted layers produced by Shockley partial dislocations.
| Original language | English |
|---|---|
| Pages (from-to) | 3269-3276 |
| Number of pages | 8 |
| Journal | Acta Materialia |
| Volume | 49 |
| Issue number | 16 |
| DOIs | |
| State | Published - Sep 20 2001 |
Funding
Research sponsored by the Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, US Department of Energy, under contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. The authors wish to thank Drs E. A. Kenik and S. J. Zinkle for reviewing the manuscript.
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | DE-AC05-00OR22725 |
| Basic Energy Sciences | |
| Division of Materials Sciences and Engineering |
Keywords
- Deformation
- Microstructure
- Steels (austenite)