| Abstract Scope |
The microstructure template of a disordered matrix reinforced by ordered-intermetallic precipitates offers a potent design strategy for high temperature materials, enabling strength alongside damage tolerance, which has been central to the success of fcc Ni-superalloys. This has inspired a strategy of ‘bcc-superalloys’ utilising bcc-based systems that offer advantages of increased melting point and lower cost; while second-phase nano-structuring offers further advantage, for strength, creep resistance, as well giving new design bases for ductility and irradiation damage resistance.
In this talk, opportunities & recent work on bcc-superalloys nano-structured tungsten and more complex alloys, including Refractory High Entropy alloys will be presented. Prospectives will be given for the onward development of these novel concept materials for application in nuclear fusion, Gen-IV fission, gas turbines and concentrated solar power. |