Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 367, Issue -, Pages 800-805Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2007.03.079
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Three different tungsten alloys (pure W, a lanthanum-oxide dispersion strengthened W-alloy - WL10 and a potassium doped tungsten alloy - WVM) in different fabrication conditions (sintered and rolled rods) were tested to characterize their fracture behaviour at different temperatures (from - 196 to 800 degrees C). Additionally severe plastic deformed tungsten alloys were produced. It is shown that an ultra fine grained microstructure with a diameter of about 300 nm is able to decrease the brittleness at room temperature significantly. Such W-alloys are very attractive candidate materials for fusion applications. (c) 2007 Published by Elsevier B.V.
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