| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
| Presentation Title |
Effect of Liquid Metal Exposure on Structural Alloy Ductility |
| Author(s) |
Bruce A. Pint, Marie Romedenne |
| On-Site Speaker (Planned) |
Bruce A. Pint |
| Abstract Scope |
Several liquids are being considered for blanket and plasma-facing component (PFC) applications for fusion energy. For PFCs, Sn has a lower vapor pressure than Li but Sn showed very poor compatibility with F82H (Fe-8wt.%Cr-2W) specimens in static tests at 400°C. Promising static results were obtained with pre-oxidized FeCrAl at 400°C-500°C. In flowing Sn in a thermal convection loop (TCL) large mass losses were observed above 350°C but ductility losses were consistent with a 400°C anneal without Sn. For Li, liquid metal embrittlement (LME) of 4340 and F82H steels was evaluated using hollow tensile specimens at 200°C. Results for 4340 steel showed LME but similar testing for F82H did not show similar evidence of LME. For Pb-Li, six TCL experiments have been conducted for 1000 h each with commercial Pb-17at.%Li and APMT (FeCrAlMo) tubing at 450°-700°C. APMT embrittlement was only a concern below 500°C where Cr-rich alpha´ precipitates formed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Mechanical Properties, |