Radiation-enhanced recrystallization in copper alloys
Conference
·
OSTI ID:5981706
Two high-strength copper alloys, cold-worked-and-aged AMZIRC (Cu-Zr) and AMAX-MZC (Cu-Cr-Zr-Mg), were irradiated with 14-MeV Cu ions to a damage level of 10 dpa at temperatures of 100 to 500/sup 0/C. Cross-section examination of the irradiated foils using electron microscopy revealed signs of irradiation-enhanced recrystallization for irradiation temperatures above 300/sup 0/C. The recrystallization temperature for both alloys is about 450/sup 0/C during thermal annealing for a time similar to the ion-irradiation time -1.5 h. A simplified analysis of the results suggests that the accelerated recrystallization kinetics is due to radiation-enhanced diffusion (RED). This process may restrict the maximum operating temperature of fusion reactor components that incorporate these types of alloys to temperatures as low as 200/sup 0/C.
- Research Organization:
- Oak Ridge National Lab., TN (USA); Wisconsin Univ., Madison (USA). Dept. of Nuclear Engineering
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5981706
- Report Number(s):
- CONF-860421-27; ON: DE86009515
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
CHARGED PARTICLES
CHROMIUM ALLOYS
COPPER ALLOYS
COPPER IONS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
HIGH TEMPERATURE
IONS
IRRADIATION
MAGNESIUM ALLOYS
MICROSCOPY
ZIRCONIUM ALLOYS
360102* -- Metals & Alloys-- Structure & Phase Studies
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
CHARGED PARTICLES
CHROMIUM ALLOYS
COPPER ALLOYS
COPPER IONS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
HIGH TEMPERATURE
IONS
IRRADIATION
MAGNESIUM ALLOYS
MICROSCOPY
ZIRCONIUM ALLOYS