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| 001 | 840494 | ||
| 005 | 20240711113915.0 | ||
| 024 | 7 | _ | |a 10.1088/1402-4896/aa909e |2 doi |
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| 100 | 1 | _ | |a Wirtz, M. |0 P:(DE-Juel1)129811 |b 0 |e Corresponding author |
| 245 | _ | _ | |a High Pulse Number Thermal Shock Tests on Tungsten With Steady State Particle Background |
| 260 | _ | _ | |a Bristol |c 2017 |b IoP Publ. |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Thermal fatigue of metallic materials, which will be exposed to severe environmental conditions e.g. plasma facing materials in future fusion reactors, is an important issue in order to predict the life time of complete wall components. Therefore experiments in the linear plasma device PSI-2 were performed to investigate the synergistic effects of high pulse number thermal shock events (L = 0.38 GW m−2, Δt = 0.5 ms) and stationary D/He (6%) plasma particle background on the thermal fatigue behavior of tungsten. Similar to experiments with pure thermal loads, the induced microstructural and surface modifications such as recrystallization and roughening as well as crack formation become more pronounced with increasing number of thermal shock events. However, the amount of damage significantly increases for synergistic loads showing severe surface roughening, plastic deformation and erosion resulting from the degradation of the mechanical properties caused by bombardment and diffusion of D/He to the surface and the bulk of the material. Additionally, D/He induced blistering and bubble formation were observed for all tested samples, which could change the thermal and mechanical properties of near surface regions. |
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| 700 | 1 | _ | |a Linke, J. |0 P:(DE-Juel1)129747 |b 2 |
| 700 | 1 | _ | |a Loewenhoff, Th |0 P:(DE-Juel1)129751 |b 3 |e Corresponding author |
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| 700 | 1 | _ | |a Sergienko, G. |0 P:(DE-Juel1)130158 |b 5 |
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