期刊
FUSION ENGINEERING AND DESIGN
卷 152, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.fusengdes.2019.111445
关键词
Tungsten; Mechanical property; Recrystallization; Potassium doping; Rhenium addition
资金
- JSPS KAKENHI [15KK0224, 26289351, 18H01196]
- National Institute for Fusion Science (NIFS) [NIFS11K0BF019]
- Grants-in-Aid for Scientific Research [18H01196, 15KK0224, 26289351] Funding Source: KAKEN
Low temperature brittleness, high ductile-to-brittle transition temperature (DBTT), and recrystallization-induced embrittlement are potential drawbacks related to the thermo-mechanical properties of tungsten (W) for application to the plasma facing materials of future fusion reactor divertors. To improve the thermo-mechanical properties of W, potassium (K) doping and rhenium (Re) addition have been applied as a dispersion-strengthening and a solid solution alloying methods, respectively. In this paper, the individual and synergistic effects of K-doping and Re-addition on the recrystallization behavior, tensile properties, and Charpy impact properties of W plate fabricated by powder metallurgy and hot rolling were investigated.
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