| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
| Presentation Title |
Insights into Factors Controlling IASCC of Stainless Steels |
| Author(s) |
Gary S. Was, Drew C Johnson, Diana Farkas |
| On-Site Speaker (Planned) |
Gary S. Was |
| Abstract Scope |
Irradiated stainless steels are susceptible to degradation in high temperature water by the process of irradiation assisted stress corrosion cracking (IASCC). While a general understanding of the process is emerging, there are several interesting observations that have yet to be incorporated into a complete description of the mechanism. It is now known that the local stress at the grain boundaries at sites of dislocation channel impingement plays a critical role, as does the composition of the surface oxide over the grain boundary. Other factors such as the presence of second phases near grain boundaries and the overall composition of the steel can significantly affect the cracking susceptibility. Still, the low percentage of cracked boundaries suggests additional factors. Incorporation of factors besides stress and oxide composition into the overall mechanism of IASCC will be the subject of this talk. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |