Role of melting temperature on the properties of displacement cascades
Conference
·
OSTI ID:6926943
- Illinois Univ., Urbana, IL (USA). Dept. of Materials Science and Engineering
- Argonne National Lab., IL (USA)
The defect structure produced in Cu-Ni alloys by room temperature heavy-ion irradiation have been investigated by TEM. This system exhibits complete solid solubility over the entire composition range and therefore allows the role of melting temperature on the properties of displacement cascades to be assessed. The probability of a dislocation loop forming in the Cu-Ni alloy system is highest in pure Cu and decreases with increasing Ni content. However, the change in formation probability with melting temperature is not a simple one as it is found that loops form more readily in pure nickel than in Cu-90%Ni. It was also found that the size of the dislocation loops varies markedly with alloy content. The higher the nickel content the smaller the loops. These results will be correlated with ion-beam mixing experiments to assess the role of vacancy mobility in the loop formation process. 21 refs., 4 figs., 1 tab.
- Research Organization:
- Argonne National Lab., IL (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- W-31109-ENG-38; AC02-76ER01198
- OSTI ID:
- 6926943
- Report Number(s):
- CONF-900623-10; ON: DE90011106
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
ALLOYS
BARYONS
CASCADE THEORY
CHARGED PARTICLES
COPPER ALLOYS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
IONS
IRRADIATION
KRYPTON IONS
MELTING
MICROSCOPY
NEUTRONS
NICKEL ALLOYS
NUCLEONS
PHASE TRANSFORMATIONS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
360102* -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
ALLOYS
BARYONS
CASCADE THEORY
CHARGED PARTICLES
COPPER ALLOYS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
IONS
IRRADIATION
KRYPTON IONS
MELTING
MICROSCOPY
NEUTRONS
NICKEL ALLOYS
NUCLEONS
PHASE TRANSFORMATIONS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS