TY - JOUR
T1 - Mechanical properties and microstructural characterizations of potassium doped tungsten
AU - Sheng, Hua
AU - Uytdenhouwen, Inge
AU - Van Oost, Guido
AU - Vleugels, Jozef
A2 - Massaut, Vincent
N1 - Score = 10
PY - 2011/11/4
Y1 - 2011/11/4
N2 - Tungsten is a very promising candidate material for plasma facing components in fusion reactor due to its high melting temperature, high thermal conductivity, low tritium inventory and low erosion rate under plasma loading (Mitteau et al., 2007). The main drawback is the embrittlement at low temperature. The potassium doped tungsten grade WVWM produced by Plansee AG could be a potential plasma facing material for future nuclear fusion facilities and reactors such as ITER and especially DEMO.
For a better understanding of both recrystallization and ductile to brittle transition temperature, tensile tests are performed on potassium doped tungsten (WVWM), up to 2000 ◦C at different loading rates (0.2 and 42 mm/min). The mechanical properties are highly dependent on the microstructure. The fracture surfaces after tensile testing are microstructurally assessed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) is used to investigate the original specimen as the beginning point.
AB - Tungsten is a very promising candidate material for plasma facing components in fusion reactor due to its high melting temperature, high thermal conductivity, low tritium inventory and low erosion rate under plasma loading (Mitteau et al., 2007). The main drawback is the embrittlement at low temperature. The potassium doped tungsten grade WVWM produced by Plansee AG could be a potential plasma facing material for future nuclear fusion facilities and reactors such as ITER and especially DEMO.
For a better understanding of both recrystallization and ductile to brittle transition temperature, tensile tests are performed on potassium doped tungsten (WVWM), up to 2000 ◦C at different loading rates (0.2 and 42 mm/min). The mechanical properties are highly dependent on the microstructure. The fracture surfaces after tensile testing are microstructurally assessed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) is used to investigate the original specimen as the beginning point.
KW - tungsten
KW - fusion
KW - mechanical
KW - microstructure
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_131277
UR - http://knowledgecentre.sckcen.be/so2/bibref/10585
U2 - 10.1016/j.nucengdes.2011.10.008
DO - 10.1016/j.nucengdes.2011.10.008
M3 - Article
SN - 0029-5493
VL - 246
SP - 198
EP - 202
JO - Nuclear Engineering and Design
JF - Nuclear Engineering and Design
ER -