A study of the vacancy loop formation probability in Ni-Cu and Ag-Pd alloys
- Illinois Univ., Urbana, IL (United States). Dept. of Materials Science and Engineering
- Argonne National Lab., IL (United States)
The molten-zone model of vacancy loop formation from a displacement cascade predicts that the loop formation probability should scale with the melting temperature. To investigate this possibility the vacancy loop formation probability has been determined in a series of Cu-Ni and Ag-Pd alloys. The irradiations were performed at room temperature with 50 keV Kr+ ions and the resulting damage structure was examined by using transmission electron microscopy. In the Cu-Ni alloy series, the change in loop formation probability with increasing Ni concentration was complex, and at low- and high- nickel concentrations, the defect yield did not change in the predicted manner. The defect yield was higher in the Cu-rich alloys than in the Ni-rich alloys. In the Ag-Pd alloy the change in the loop formation probability followed more closely the change in melting temperature, but no simple relationship was determined.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10174524
- Report Number(s):
- ANL/CP-74791; CONF-920970-3; ON: DE92019584
- Resource Relation:
- Conference: 3. conference on evolution of microstructure in metals during irradiation,Chalk River (Canada),29 Sep - 2 Oct 1992; Other Information: PBD: Apr 1992
- Country of Publication:
- United States
- Language:
- English
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