Effect of solute additions on the swelling of an Fe--7. 5 Cr--20 Ni alloy. [4 MeV Ni/sup +/ irradiation]
The influence of various solute elements on the swelling behavior of an Fe-7.5 Cr-20 Ni alloy in the range 500 to 730/sup 0/C has been investigated using 4 MeV nickel ion bombardment. It was found that on an atomic percent basis, the elements may be arranged in order of decreasing effectiveness in reducing peak temperature swelling as follows: Ti, C, Nb, Si, and Mo. Small additions of aluminum enhance swelling. Additions of Si, Ti, or Nb truncate the high temperature swelling regime of the ternary alloy. Molybdenum, tungsten, and carbon do not have a strong effect on the temperature dependence of swelling. The results may be interpreted in terms of the effect of point defect trapping on void growth rates, and it is suggested that the changes in peak temperature are the result of small changes in the free vacancy formation energy.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 7094986
- Report Number(s):
- CONF-770641-5; TRN: 77-016231
- Resource Relation:
- Conference: Conference on radiation effects in breeder reactor structural materials, Scottsdale, AZ, USA, 19 Jun 1977
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
NICKEL-CHROMIUM STEELS
PHYSICAL RADIATION EFFECTS
CARBON ADDITIONS
HIGH TEMPERATURE
MOLYBDENUM ADDITIONS
NICKEL IONS
NIOBIUM ADDITIONS
POINT DEFECTS
SILICON ADDITIONS
SWELLING
TEMPERATURE DEPENDENCE
TITANIUM ADDITIONS
TRAPPING
ALLOYS
ATOMIC IONS
CHARGED PARTICLES
CHROMIUM ALLOYS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
IONS
IRON ALLOYS
IRON BASE ALLOYS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL STEELS
NIOBIUM ALLOYS
RADIATION EFFECTS
SILICON ALLOYS
STEELS
TITANIUM ALLOYS
360106* - Metals & Alloys- Radiation Effects