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Atomic simulation of mechanical properties of irradiated iron

Author

Listed:
  • Lei Ma

    (Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting, Lake Ecological Economic Zone, Hunan University of Arts and Science, Changde 415000, P. R. China)

  • Changsheng Li

    (Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting, Lake Ecological Economic Zone, Hunan University of Arts and Science, Changde 415000, P. R. China)

  • Ailong Zhang

    (Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting, Lake Ecological Economic Zone, Hunan University of Arts and Science, Changde 415000, P. R. China)

  • Wangyu Hu

    (#x2020;College of Materials Science and Engineering, Hunan University, Changsha 410082, P. R. China)

Abstract

The mechanical properties of irradiated iron are studied by molecular dynamics simulation. The initial models are irradiated with the energy of primary knocked-on atoms (PKA) of 10keV at 100, 300, 500 and 600 K, and then all the irradiated models are subjected to tensile test. The results reveal that the mechanical properties of irradiated iron are changed compared with un-irradiated iron, the yield stress and strain decrease after irradiation, and the irradiation causes the hardening of micro-structure at low temperature and high temperature, but it results in the softening of structure at room temperature. The plastic reduces for irradiated iron under tensile test, more stacking faults are formed in the crystal structure as the temperature increases.

Suggested Citation

  • Lei Ma & Changsheng Li & Ailong Zhang & Wangyu Hu, 2020. "Atomic simulation of mechanical properties of irradiated iron," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 31(02), pages 1-9, February.
    • Handle: RePEc:wsi:ijmpcx:v:31:y:2020:i:02:n:s0129183120500278
    DOI: 10.1142/S0129183120500278
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