THE INFLUENCE OF ^<10>B ADDITION ON THE SWELLING SUPPRESSION BY PHOSPHORUS AND TITANIUM IN Fe-Cr-Ni

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Phosphorus and/or titanium modified Fe-16Cr-17Ni austenitic alloys doped with ^<10>B were irradiated in FFTF/MOTA at 684 K for the purpose of investigating the influence of helium generation on the swelling suppression effects by phosphorus and titanium. The increase in void density caused by ^<10>B addition resulted in swelling increase in phosphorus-modified alloys. The close relation between the dislocation density and the void swelling implied the enhancement of dislocation density as a possible mechanism of the swelling suppression by phosphorus addition at the present temperature.
1994-09-16