Recent progress in R&D on tungsten alloys for divertor structural and plasma facing materials
By S. Wurster, N. Baluc, M. Battabyal, T. Crosby, J. Du, C. García-Rosales, A. Hasegawa, A. Hoffmann, A. Kimura, H. Kurishita and 10 more. 2013
334 citations recorded by the source corpus.
Tungsten materials are candidates for plasma-facing components for the International Thermonuclear Experimental Reactor and the DEMOnstration power plant because of their superior thermophysical properties. Because these materials are not common structural materials like steels, knowledge and strategies to improve the properties are still under development. These strategies discussed here, include new alloying approaches and microstructural stabilization by oxide dispersion strengthened as well as TiC stabilized tungsten based materials. The fracture behavior is improved by using tungsten laminated and tungsten wire reinforced materials. Material development is accompanied by neutron irradiation campaigns. Self-passivation, which is essential in case of loss-of-coolant accidents for plasma facing materials, can be achieved by certain amounts of chromium and titanium. Furthermore, modeling and computer simulation on the influence of alloying elements and heat loading and helium bombardment will be presented.
Subfields: Materials Chemistry, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/70e1300a7b1318d29cb61db9e5e4fa6cc2e5dfb7
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Citations in the corpus
- Selective laser melting additive manufacturing of pure tungsten: Role of volumetric energy density on densification, microstructure and mechanical properties (2019, background): “Due to its high melting point and excellent radiationshielding properties, tungsten is also a promising plasma-facing material for future nuclear fusion reactors [5,6].”
- Loop and void damage during heavy ion irradiation on nanocrystalline and coarse grained tungsten: Microstructure, effect of dpa rate, temperature, and grain size (2018, background): “These challenges prompted the investigation of other alternative materials such as tungsten alloys and ultrafine (UF) and nanocrystalline (NC) tungsten (refined grained tungsten) [20,21].”