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Effect of grain size on energy deposition process in Ni metal during 1 MeV electron irradiation

Ma Guo-Liang Li Xing-Ji Liu Hai Liu Chao-Ming Yang Jian-Qun He Shi-Yu

Effect of grain size on energy deposition process in Ni metal during 1 MeV electron irradiation

Ma Guo-Liang, Li Xing-Ji, Liu Hai, Liu Chao-Ming, Yang Jian-Qun, He Shi-Yu
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  • Received Date:  06 December 2012
  • Accepted Date:  05 January 2013
  • Published Online:  05 May 2013

Effect of grain size on energy deposition process in Ni metal during 1 MeV electron irradiation

  • 1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant No. 11205038), and the China Postdoctoral Science Foundation (Grant No. 2012M510951).

Abstract: The high performance nano-crystal Ni material was prepared by the pulse electrodeposition process; the intensity, composition and the microscopic structure of the nano-crystal Ni material were investigated by various measurements. In this paper, the 1 MeV electron was chosen as the irradiation source to investigate the energy loss of high energy electron in the nano-crystal Ni material and conventional bulk Ni material, and the energy deposition process during the electron irradiation was measured by the absorbed dose tablets. The results show that the grain size affects the energy loss process during the 1MeV electron irradiation seriously. The absorbed dose of 1 MeV electron in the nano-crystal Ni material is lower than that in the common Ni material with the same thickness, which indicates that the energy deposition of high energy electron in nano-crystal metal is lower than that in the conventional bulk metal, and the nano-crystal metal has an advantage of radiation resistance.

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