NUCLEAR TECHNIQUES, Volume. 47, Issue 6, 060501(2024)

Establishment and application of a zirconium alloy irradiation deformation data mining database based on a mesoscale model

Jun HUANG, Zikang ZHANG, Guisen LIU, and Yao SHEN*
Author Affiliations
  • School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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    Figures & Tables(14)
    Interface of the homepage of the data mining library
    Logical relationship diagram of database design (a) and entity diagram (b) (PK stands for primary key, FK stands for external key)
    Partial graphical user interfaces[20] (a) Material properties and service conditions, (b) Data visualization
    Schematic of VPSC[14]
    Flowchart for establishing parameter database and simulation results database
    Irradiation deformation of SRA Zr-4 tube under irradiation conditions of 92 MPa, 350 °C, and flux of 1.69×1018 n∙m-2∙s-1 in diametral (a) and axial (b) directions[22]
    Flowchart of genetic algorithm to obtain optimal parameters
    Diametral irradiation deformation of Zr-2.5Nb at different temperatures[26-27]
    Pole figure of Zr-2.5Nb
    Experimental data[26] and simulation results of irradiation deformation of Zr-2.5Nb tube at 350 ℃, flux of 2×1018 n∙m-2∙s-1, and different stress conditions in diametral (a) and axial (b) directions
    Initial critical resolved shear stress variation of prismatic slip systems in zirconium alloys with different Nb contents
    Relationship diagram between lnB and 1/T for different zirconium alloys (a) Zr-4, (b) Zr-2.5Nb
    • Table 1. Target format for data organization before entering the database[20]

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      Table 1. Target format for data organization before entering the database[20]

      材料信息Material information注量Fluence / 1025 n∙m-2应变Strain
      材料名称Material nameZr-40.303.06×10-3
      材料成分Material componentSn1.3Fe0.21Cr0.10O0.1250.664.39×10-3
      织构因子Texture factorfa =0.1031.547.91×10-3
      热处理工艺Heat treatment processSRA (Stress-relief Annealing)2.511.03×10-2
      晶粒尺寸Grain size / μm2.581.12×10-2
      初始位错密度Initial dislocation density / m-22.811.12×10-2
      3.111.21×10-2
      服役条件Service conditions3.421.26×10-2
      辐照温度Irradiation temperature / K6234.181.49×10-2
      辐照反应堆Irradiation reactorCEA (Commissariat à l´Energie Atomique)4.491.56×10-2
      辐照粒子Irradiation particle中子Neutron4.801.60×10-2
      注量率Flux / n∙m-2∙s-11.69×10185.391.73×10-2
      应力Stress / MPa906.131.88×10-2
      变形类型Deformation type总应变Total strain6.411.97×10-2
      变形方向Deformation direction环向Transverse direction6.702.02×10-2
      7.252.09×10-2
    • Table 2. Partial model parameters

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      Table 2. Partial model parameters

      参数Parameters符号Symbol值Values
      柱面Prismatic基面Basal锥面Pyramidal
      参考剪切速率Reference shear rate / s-1γ˙06.0×10-8
      初始CRSS Initial CRSS / MPaτ0s80104280
      初始硬化速率Initial hardening rate / MPa∙s-1θ0s2 5002 8003 200
      渐近硬化速率Asymptotic hardening rate / MPa∙s-1θ1s82825
      后推CRSS Back extrapolated CRSS / MPaτ0s+τ1s4590375
      初始位错密度Initial dislocation density / 1014 m-2ρds1210.15
      辐照蠕变参数Irradiation creep parameter / m2∙MPa-1∙n-1B1.1×10-6
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    Jun HUANG, Zikang ZHANG, Guisen LIU, Yao SHEN. Establishment and application of a zirconium alloy irradiation deformation data mining database based on a mesoscale model[J]. NUCLEAR TECHNIQUES, 2024, 47(6): 060501

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    Paper Information

    Category: Research Articles

    Received: Feb. 6, 2024

    Accepted: --

    Published Online: Jul. 8, 2024

    The Author Email: SHEN Yao (沈耀)

    DOI:10.11889/j.0253-3219.2024.hjs.47.060501

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