Published September 1987 | Version v1
Report

The behavior of solute segregation and void formation in Fe-Cr-Ni and Fe-Cr-Mn steels during electron irradiation

  • 1. Beijing Univ. of Iron and Steel Technology, China
  • 2. Hanford Engineering Development Lab., Richland, WA
  • 3. Hokkaido Univ., Sapporo, Japan

Description

The relative swelling behavior of Fe-Cr-Mn and Fe-Cr-Ni alloys during electron irradiation is shown to be different from that observed in neutron irradiations. This difference appears to a consequence of the different diffusion behavior of nickel and manganese in response to the operation of the inverse Kirkendall effect. The vacancy gradients driving the diffusion in these experiments are generated not only by the foil surfaces and the electron-generated radial displacement gradient but also by high angle grain boundaries deliberately centered in the middle of the electron beam. This procedure allows the relative diffusional characteristics of each element to be observed by EDX measurements across the grain boundary. The influence of helium and minor solutes on swelling was also studied in these experiments and yielded no behavior atypical of that observed in neutron irradiation studies. 22 refs., 9 figs., 1 tab

Additional details

Publishing Information

Imprint Title
Fusion reactor materials: Semiannual progress report for the period ending March 31, 1987
Journal Page Range
p. 77-87.
Report number
DOE/ER--0313/2

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