Abstract
Abstract Analytical equations were developed to calculate the strength factors of precipitates, Frank loops, and cavities in austenitic alloys, which strongly depend on barrier type, size, geometry and density, as well as temperature. Calculated strength factors were successfully used to estimate radiation hardening using the broadly employed dispersed barrier-hardening model, leading to good agreement with experimentally measured hardening in neutron-irradiated type 304 and 316 stainless steel variants. The formulated strength factor provides a route for more reliable hardening predictions and can be easily incorporated into component simulations and design.
| Original language | English |
|---|---|
| Article number | 49209 |
| Pages (from-to) | 724-730 |
| Number of pages | 7 |
| Journal | Journal of Nuclear Materials |
| Volume | 465 |
| DOIs | |
| State | Published - Jul 18 2015 |
Funding
This research was sponsored by the U.S. Department of Energy, Office of Nuclear Energy, Light Water Reactor Sustainability Program , under contract DE-AC05-00OR22725 with University of Tennessee–Battelle, LLC. The research was conducted as part of a user project supported by Oak Ridge National Laboratory's (ORNL) Center for Nanophase Materials Sciences , which is sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy . The authors would like to thank Drs. Gary Was (Univ. of Michigan), Roger Stoller, Yury Osetskiy, Kevin Field and Xunxiang Hu (ORNL) for their reviews of this manuscript.
Keywords
- Defects
- Stainless steels
- Strengthening
- TEM