Production of defects in metals by collision cascades: TEM experiments
Conference
·
OSTI ID:204082
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.
- Research Organization:
- Argonne National Lab., IL (United States). Materials Science Div.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 204082
- Report Number(s):
- ANL/MSD/CP--83381; CONF-941144--182; ON: DE96006893
- Country of Publication:
- United States
- Language:
- English
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