The mechanical properties of tungsten produced in different forms before and after neutron irradiation are of considerable interest for their application in fusion devices such as ITER. In this work the mechanical properties and the microstructure of two tungsten (W) products with different microstructures are investigated using depth sensing nano/micro-indentation and transmission electron microscopy, respectively. Neutron irradiation of these materials for different doses, in the temperature range 600 °C–1200 °C, is underway within the EUROfusion project in order to progress our basic understanding of neutron irradiation effects on W. The hardness and elastic modulus are determined as a function of the penetration depth, loading/
unloading rate, holding time at maximum load and the final surface treatment. The results are correlated with the microstructure as investigated by SEM and TEM measurements.
|Title of host publication||PHYSICA SCRIPTA|
|Subtitle of host publication||16th International Conference on Plasma-Facing Materials and Components for Fusion Applications (PFMC)|
|Number of pages||8|
|State||Published - 28 Nov 2017|
|Publisher||IOP - IOP Publishing|