Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7963192 | Journal of Nuclear Materials | 2018 | 7 Pages |
Abstract
Tungsten (W) is considered as a promising candidate for plasma-facing materials for future nuclear fusion devices, and selecting optimal alloying constituents is a critical issue to improve radiation resistance of the W alloys as well as to improve their mechanical properties. We conducted in the current study a series of first-principles calculations for investigating solvent-solute mixed dumbbells in W crystals. The results suggested that titanium (Ti), vanadium (V), and chromium (Cr) are favorable as solutes for W alloys from irradiation-effect perspectives because these elements are expected to promote vacancy-interstitial recombination without causing radiation-induced precipitation that reduces ductility of irradiated materials.
Related Topics
Physical Sciences and Engineering
Energy
Nuclear Energy and Engineering
Authors
Tomoaki Suzudo, Tomohito Tsuru, Akira Hasegawa,