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 neutron irradiation, in various metals and alloys. The dependence of vacancy dislocation loop formation on recoil energy, sample temperature, and specific metal or alloy will be examined. Special emphasis will be placed on the effects of dilute alloy additions. A model for cascade melting will be employed to understand these effects, and will require an examination of the role of electron-phonon coupling in cascade cooling and recrystallization. The formation of interstitial dislocation ... continued below

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25 p.

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Kirk, M.A. March 1, 1995.

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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 neutron irradiation, in various metals and alloys. The dependence of vacancy dislocation loop formation on recoil energy, sample temperature, and specific metal or alloy will be examined. Special emphasis will be placed on the effects of dilute alloy additions. A model for cascade melting will be employed to understand these effects, and will require an examination of the role of electron-phonon coupling in cascade cooling and recrystallization. The formation of interstitial dislocation loops as cascade defects, and the influence of the nearby surfaces in these experiments is briefly discussed.

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25 p.

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OSTI as DE95012460

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  • International workshop on an assessment of fundamental aspects of radiation damage production and accumulation in metals and alloys, Obninsk (Russian Federation), 12-18 Sep 1994

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  • Other: DE95012460
  • Report No.: ANL/MSD/CP--86106
  • Report No.: CONF-9409349--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 71635
  • Archival Resource Key: ark:/67531/metadc708546

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  • March 1, 1995

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Dec. 15, 2015, 12:40 p.m.

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Kirk, M.A. Production of defects in metals by collision cascades: TEM experiments, article, March 1, 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc708546/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.