Abstract
To evaluate the liquid metal embrittlement (LME) susceptibility of F82H, a reduced activation ferritic-martensitic (RAFM) steel, a testing procedure using hollow cylindrical tensile specimens was used. Tensile tests are compared between specimens filled with argon and lithium at 200 °C. To validate the procedure, initial testing was performed on type 4340 steel, which is well-known to exhibit LME. Compared to 4340 steel, F82H only showed minor effects of Li exposure, including pre-testing exposures with Li at 400 °C for 1 h and 500 °C for 500 h. Furthermore, changing the strain rate or tensile test temperature also did not show significant embrittlement.
| Original language | English |
|---|---|
| Article number | 114601 |
| Journal | Fusion Engineering and Design |
| Volume | 206 |
| DOIs | |
| State | Published - Sep 2024 |
Funding
Special thanks to Dr. Takashi Nozawa at the National Institutes for Quantum and Radiological Science and Technology in Japan for supplying the F82H material for testing. The hollow specimen testing was originally developed at ORNL by W. Ren and G. Muralidharan. The experimental work at ORNL was conducted by M. Stephens, J. Horenburg, D. Newberry, and characterization by T Lowe. M. Ridley, C. De lamater-Brotherton provided valuable comments on the results and manuscript. This research was funded by the U.S. Department of Energy's Office of Fusion Energy Sciences.
Keywords
- Embrittlement
- Liquid metal
- Lithium
- Steel