|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||Towards V-based High Entropy Alloys for Fusion Blanket Applications
||Paul Barron, Michael Preuss, Michael Gorley, Ed Pickering
|On-Site Speaker (Planned)
Conditions inside nuclear fusion reactors involve extremes of both temperature and neutron irradiation. Directly adjacent to the fusion plasma in a Tokamak reactor is the blanket. It serves to protect the Tokamak’s superconducting magnets and supporting structures from high temperatures and energetic neutrons. It also captures the energy given off from the fusion reaction. To minimise radioactive waste, it is desirable that the blanket is made from materials that do not significantly activate when irradiated. By mixing elements with favourable activation properties to create high entropy alloys, it may be possible to make a material that has the properties required to withstand a fusion environment while minimising waste produced. A suite of previously unexplored V-Cr-Mn-Ti alloys have been fabricated and we have characterised the microstructures that have evolved under a range of fusion-relevant temperatures over times of up to 1000 hrs to determine potential suitability for fusion blanket structures.