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Volume 27 Issue 2
Apr.  2006
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LIU Chao-hong, JIANG Ming-zhong, YIN Chang-geng. Control of Homogeneity of U-Mo Alloy[J]. Nuclear Power Engineering, 2006, 27(2): 50-53,63.
Citation: LIU Chao-hong, JIANG Ming-zhong, YIN Chang-geng. Control of Homogeneity of U-Mo Alloy[J]. Nuclear Power Engineering, 2006, 27(2): 50-53,63.

Control of Homogeneity of U-Mo Alloy

  • Received Date: 2005-02-01
  • Rev Recd Date: 2005-07-11
  • Available Online: 2025-07-29
  • The coating of graphite crucible and its preparation technology,and homogeneity controlling for U-Mo alloy are studied when we melt U-Mo alloy in the vacuum induction furnace.The experimental re-sults show that the material is calcium oxide stabilized by 5wt%~10wt% titanium oxide and the coating is sintered in the vacuum induction furnace,thus the stability of the coating will be improved.Molybdenum is loaded on the bottom of graphite crucible,which is helpful to control the homogeneity of U-Mo alloy.When the melting temperature is about 1480℃,and melting time is about 8 minutes,the general efficiency of the homogeneity controlling for Mo component and the carbon impurity decreasing of U-Mo alloy is good.The crystal grain is basically the equiaxial crystal,and the grade is 6.4(about 35 μm).The content of Mo in the center of crystal grain is higher than that of grain boundary;The alloy which is not cast has effect on the phase composition of alloy,and the body isα-U.In order to keep metastable γ as much as possible,the alloy must be cast and cooled quickly.

     

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