Influence of helium-injection schedule and prior thermomechanical treatment on the microstructure of Type 316 SS

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The influence of different helium-injection schedules on microstructure development Ni/sup +/ ion irradiated 316 SS at 625/sup 0/C is discussed. Injection schedules were chosen to (1) approximate the magnetic fusion reactor condition and (2) mimic the mixed-spectrum reactor condition. Dual-ion irradiation to 25 dpa produced strongly bimodal cavity size distributions in solution-annealed and solution-annealed and aged samples, whereas single-ion irradiation followed by dual-ion irradiation to the same dose produced a cavity size distribution with a substantial component of intermediate-size cavities. Dual-ion irradiation produced only very small cavities in 20% CW material, while single-ion followed by dual-ion irradiation produced some intermediate ... continued below

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Pages: 31

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Kohyama, A.; Ayrault, G. & Turner, A.P.L. October 1, 1982.

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The influence of different helium-injection schedules on microstructure development Ni/sup +/ ion irradiated 316 SS at 625/sup 0/C is discussed. Injection schedules were chosen to (1) approximate the magnetic fusion reactor condition and (2) mimic the mixed-spectrum reactor condition. Dual-ion irradiation to 25 dpa produced strongly bimodal cavity size distributions in solution-annealed and solution-annealed and aged samples, whereas single-ion irradiation followed by dual-ion irradiation to the same dose produced a cavity size distribution with a substantial component of intermediate-size cavities. Dual-ion irradiation produced only very small cavities in 20% CW material, while single-ion followed by dual-ion irradiation produced some intermediate size cavities and greater swelling. 10 figures.

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Pages: 31

Notes

NTIS, PC A03/MF A01.

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  • TMS/AIME fall meeting, St. Louis, MO, USA, 24 Oct 1982

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  • Other: DE83007822
  • Report No.: CONF-821049-15
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 6436063
  • Archival Resource Key: ark:/67531/metadc1212292

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  • October 1, 1982

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  • July 5, 2018, 11:11 p.m.

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  • Oct. 31, 2018, 5:34 p.m.

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Kohyama, A.; Ayrault, G. & Turner, A.P.L. Influence of helium-injection schedule and prior thermomechanical treatment on the microstructure of Type 316 SS, article, October 1, 1982; Illinois. (digital.library.unt.edu/ark:/67531/metadc1212292/: accessed November 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.