Abstract
The focus of this study is to investigate the low-cycle fatigue (LCF) behavior of two newly developed austenitic 17Cr13Ni–W ODS steels. The LCF tests were performed at 650 °C with strain amplitudes ranging from 0.4 to 0.9%. The cyclic stress response and the cyclic strain-life resistance were analyzed in detail and compared with two non-ODS austenitic stainless steels (304 and 316L(N)) and a ferritic-martensitic ODS steel based on T91. The austenitic ODS steels showed stabilized cyclic response after a slight initial cyclic hardening. Due to their high strength at elevated temperatures, the strain-life resistance became superior with decreasing total strain amplitude compared to the other materials considered.
| Original language | English |
|---|---|
| Pages (from-to) | 194-200 |
| Number of pages | 7 |
| Journal | International Journal of Fatigue |
| Volume | 93 |
| DOIs | |
| State | Published - Dec 1 2016 |
| Externally published | Yes |
Funding
The present work was supported by the Helmholtz Association , Germany within the Portfolio Topic ‘Materialforschung für die zukünftige Energieversorgung’.
Keywords
- Austenitic steel
- High-temperature application
- LCF behavior
- ODS steel
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