About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
| Presentation Title |
Environmentally Assisted Fatigue Cracking of AM 316L in Light Water Reactor Environment |
| Author(s) |
Yiren Chen, Bogdan Alexandreanu, Wei-ying Chen, lin gao, xuan zhang, Srinivas Mantri |
| On-Site Speaker (Planned) |
Yiren Chen |
| Abstract Scope |
Additively manufactured (AM) 316L stainless steels (SSs) have been evaluated for their fatigue and environmentally assisted fatigue behavior in as-printed condition. Strain-controlled fatigue tests in air conducted with AM 316L SS under different strain amplitudes in a fully reversed mode revealed that the fatigue lives of AM 316L were slightly lower than that of traditionally made 316 SS, especially at high strain amplitude. For the tests performed in simulated LWR water, the fatigue lives of AM316L were reduced compared to those conducted in air, suggesting a negative impact of LWR environment on AM materials. Cyclic softening dominated the evolution of stress amplitude for all fatigue tests on AM 316L SS both in air and in water. Environmental correction factors were estimated for AM 316L and were found to be close to those for traditional alloys, suggesting a similar baseline behavior for both traditional and AM 316L SSs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Additive Manufacturing, |