W-TiC Alloy Plasma Facing Materials and Heat Flux Performance Test under Electron Beam Facility

W-TiC alloys were prepared by means of the mechanical alloying method and their main physical properties were tested. It is found that TiC particle introduction can strengthen the grain boundary notably and enhance the mechanical properties of the alloys. Particularly, the relative density, flexural strength, Vickers microhardness and elastic modulus of W-1wt%TiC alloy is 98.4%, 1065 MPa, 4.33 and 396 GPa, respectively. Meanwhile, the electron-beam heat-flux test show that TiC particles can effectively improve the heat flux properties of W-TiC alloy below the re-crystallization temperature; however, when the alloy is used above the re-crystallization temperature due to the higher grain strain energy, the effect is not notable. Therefore, the results indicate W-1wt%TiC is the suitable plasma facing material as the heat flux material below the re-crystallization temperature.