Production of defects in metals by collision cascades: TEM experiments

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This paper reviews experimental TEM data on production of dislocation loops by low energy ion bombardment to low doses, as simulations of similar collision cascades produced by fast neutrons, in various metals and alloys. Dependence of vacancy dislocation loop formation on recoil energy, temperature and metal/alloy is examined. Emphasis is placed on effects on dilute alloy additions. A model for cascade melting is used to understand these effects; this will require an examination of the role of electron-phonon coupling in cascade cooling and recrystallization. Formation of interstitial dislocation loops as cascade defects and the effect of nearby surfaces are briefly ... continued below

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11 p.

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Kirk, M. A. January 1996.

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Description

This paper reviews experimental TEM data on production of dislocation loops by low energy ion bombardment to low doses, as simulations of similar collision cascades produced by fast neutrons, in various metals and alloys. Dependence of vacancy dislocation loop formation on recoil energy, temperature and metal/alloy is examined. Emphasis is placed on effects on dilute alloy additions. A model for cascade melting is used to understand these effects; this will require an examination of the role of electron-phonon coupling in cascade cooling and recrystallization. Formation of interstitial dislocation loops as cascade defects and the effect of nearby surfaces are briefly discussed.

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11 p.

Notes

OSTI as DE96006893

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  • Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 28 Nov - 9 Dec 1994

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  • Other: DE96006893
  • Report No.: ANL/MSD/CP--83381
  • Report No.: CONF-941144--182
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 204082
  • Archival Resource Key: ark:/67531/metadc667245

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Office of Scientific & Technical Information Technical Reports

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  • January 1996

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  • June 29, 2015, 9:42 p.m.

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  • Dec. 11, 2015, 2:53 p.m.

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Kirk, M. A. Production of defects in metals by collision cascades: TEM experiments, article, January 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc667245/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.