1 School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009 2 Laboratories of Nonferrous Metal Material and Processing Engineering of Anhui Province, Hefei 230009 3 National-Local Joint Engineering Research Centre of Nonferrous Metals and Processing Technology, Hefei 230009
It is difficult and urgent task to develop a high-performance plasma facing materials for current nuclear fusion research by the irradiation behavior of PFMs, which is suitable for advanced experiment superconducting tokamak (EAST), international thermonuclear fusion reactor (ITER) and China fusion engineering experiment reactor (CFETR). Tungsten is considered to be the primary candidate for plasma facing materials in future fusion reactors owing to its superiority to other materials including high melting point, high thermal conductivity, low sputter corrosion rate, high sputtering threshold, low vapor pressure and low tritium inventory. In this paper, we review the research progress of damage of tungsten and tungsten alloy irradiated by various particles. The defects caused by irradiation are accumulate in tungsten and tungsten alloy. The formation and quantity of defects are closely related to the microstructure of the tungsten and the second phase components, the situation of defects are diverse. At the same time, the irradiation conditions, for instance, the kinds of particles, energy, flux and temperature, will also have an important impact on the morphology and defect of the irradiated sample.
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