Study on radiation resistance of domestic B4C particle reinforced aluminum matrix composite
SHI You1，LIU Gui-rong2，ZHANG Ya-dong3，NING Dong1，CHEN Jin4，YANG Yi-zhong1
（1. Shanghai Nuclear Engineering Research & Design Institute Co.， Ltd.， Shanghai 200233， China 2. Advanced Technology & Materials Co.， Ltd.， Beijing 100094， China 3. China Institute of Atomic Energy， Beijing 102413， China 4. Antai-heyuan Nuclear Energy Technology & Materials Co.，Ltd.， Beijing 100094， China）
Abstract：The B4C particle reinforced Al-matrix composite used as neutron absorber plates were prepared by powder metallurgy method. After being subjected to a radiation test with fast neutron influence up to 4.22×1019 n/cm2 and gamma-ray dose reaching 4.75×1011 rad， the properties of the material， including surface morphology， size， mass， density， mechanical properties （tensile strength， hardness and elongation） as well as boron-10（10B） areal density， were tested and compared with those before irradiation. The results show that the tensile strength and hardness of the composite are improved with the elongation decreased， the surface morphology has not changed obviously， and the size， mass， density and 10B areal density have not changed significantly under the irradiation of neutron and gamma rays.
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2018, Vol. 28 
