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Volume 31 Issue 1
Feb.  2010
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ZHANG Rui-qian, HONG Xiao-feng, PENG Qian. Effect of Copper-Enriched Clusters on Mechanical Properties of Pressure Vessel Model Steel of Nuclear Reactors[J]. Nuclear Power Engineering, 2010, 31(1): 4-8.
Citation: ZHANG Rui-qian, HONG Xiao-feng, PENG Qian. Effect of Copper-Enriched Clusters on Mechanical Properties of Pressure Vessel Model Steel of Nuclear Reactors[J]. Nuclear Power Engineering, 2010, 31(1): 4-8.

Effect of Copper-Enriched Clusters on Mechanical Properties of Pressure Vessel Model Steel of Nuclear Reactors

  • Received Date: 2008-11-27
  • Rev Recd Date: 2009-07-30
  • Available Online: 2025-07-29
  • Publish Date: 2010-02-01
  • The precipitation of copper-enriched clusters was induced into pressure vessel model steel(with higher Cu content) of nuclear reactors by water quenching and thermal aging.The mechanical property tests showed that the presence of copper-enriched clusters led to a large shift of the ductile-to-brittle transition temperature,a tiny increase in the yield strength and tensile strength,and a tiny decrease of plasticity.In addi-tion,this paper also studied the effect of the presence of Nickel element on the ductile-to-brittle transition temperature.Three-dimensional atom probe test revealed that the number density of enriched clusters was about 1023 m-3,and the size of copper-enriched clusters was in the range of 1nm to 3nm in diameter.

     

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