Nuclear Engineering and Technology

  • 제54권7호
  • /
  • Pages.2408-2417
  • /
  • 2022
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Effect of irradiation temperature on the nanoindentation behavior of P92 steel with thermomechanical treatment

  • Huang, Xi (School of Nuclear Science and Engineering, East China University of Technology) ;
  • Shen, Yinzhong (School of Mechanical Engineering, Shanghai Jiao Tong University) ;
  • Li, Qingshan (School of Mechanical Engineering, Shanghai Jiao Tong University) ;
  • Li, Xiaoyan (School of Nuclear Science and Engineering, East China University of Technology) ;
  • Zhan, Zixiong (School of Nuclear Science and Engineering, East China University of Technology) ;
  • Li, Guang (School of Nuclear Science and Engineering, East China University of Technology) ;
  • Li, Zhenhe (School of Nuclear Science and Engineering, East China University of Technology)
  • 투고 : 2021.06.26
  • 심사 : 2022.02.06
  • 발행 : 2022.07.25
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초록

The nanoindentation behavior of P92 steel with thermomechanical treatment under 3.5 MeV Fe13+ ion irradiation at room temperature, 400 and 700 ℃ was investigated. Pop-in behavior is observed for all the samples with and without irradiation at room temperature, while the temperature dependence of pop-in behavior is only observed in irradiated samples. The average load and penetration depth at the onset of pop-in increase as the irradiation temperature increases, in line with the results of the maximum shear stress. Irradiation induced hardening is exhibited for all irradiated samples, but there is a significant reduction in the hardness of sample irradiated at 700 ℃ in comparison to the samples irradiated at room temperature and 400 ℃. The ratio of hardness to elastic modulus for all samples decreases with increasing penetration depth except for samples at 700 ℃. With the increasing of irradiation temperature, the ratio of the irreversible work to the total work gradually decreases. In contrast, it increases for samples without irradiation.

키워드

과제정보

This study was supported by the National Natural Science Foundation of China (51034011), National Science and Technology Major Project of China (2011ZX06004-009), International Thermonuclear Experimental Reactor (ITER) Project-National Magnetic Confinement Fusion Program (2011GB113001), Jiangxi Provincial Natural Science (20202BABL211014), the Key Laboratory of Nuclear Resources and Environment (NRE1608), Foundation of Jiangxi Educational Committee (GJJ180401) and Doctoral Scientific Research Foundation of East China University of Technology (DHBK2017127).

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