Abstract:

One of the important way to solve the problem of human energy is to exploit controlled thermonuclear fusion energy. In controlled thermonuclear nuclear fusion reactor device, tungsten as the selection of the most promising for the first wall materials facing plasma have many good qualities, such as high melting point, high thermal conductivity, good high temperature strength, etc.However, the irradiation of ion and neutron for tungsten-matrix materials will lead to the change of microstructure, such as the formation of bubbles, holes, nanostructure. Irradiation can also make the materials hardening and become brittle. The irradiation damage problem of tungsten materials as the first wall materials facing plasma is one of the key problem to solve. By changing the structure and the composition design of tungsten materials can change its radiation resistance. Many researchers of home and aboard have studied the irradiation damage behavior for the pure tungsten, carbide doped tungsten, oxide doped tungsten and other tungsten-matrix materials. The progress and trends of these related studies are reviewed.

Key words: irradiation damage, tungsten-matrix materials, plasma facing materials