Published 1983
| Version v1
Journal article
Grain boundary cavitation and weld underbead cracking in DOP-26 iridium alloy
Description
Plutonium-238 oxide fuel pellets for the General Purpose Heat Source Radioisotopic Thermoelectric Generators to be used on the NASA Galileo Mission to Jupiter and the International Solar Polar Mission are produced and encapsulated in DOP-26 iridium alloy at the Savannah River Plant. DOP-26 iridium alloy was developed at the Oak Ridge National Laboratory (ORNL) and contains nominally 0.3 wt.% tungsten, 60 ppm thorium, and 50 ppm aluminum. Underbead cracks occasionally occur in the girth weld on the iridium alloy cladding in the area where the gas tungsten arc is quenched. Various electron-beam techniques have been used to determine the cause of cracking
Additional details
Publishing Information
- Journal Title
- Microbeam Anal.
- Journal Issue
- p. 117-120
- Series
- Microbeam Anal.
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 16010620
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES; S36: MATERIALS SCIENCE;
- Descriptors DEI
- CONTAINERS; CRACKING; ENCAPSULATION; GRAIN BOUNDARIES; IRIDIUM ALLOYS; PLUTONIUM OXIDES; PLUTONIUM 238; RADIOISOTOPE HEAT SOURCES; WELDED JOINTS; WELDING
- Descriptors DEC
- ACTINIDE COMPOUNDS; ACTINIDE NUCLEI; ALLOYS; ALPHA DECAY RADIOISOTOPES; CHALCOGENIDES; CHEMICAL REACTIONS; CRYSTAL STRUCTURE; DECOMPOSITION; ENERGY SOURCES; EVEN-EVEN NUCLEI; FABRICATION; HEAVY NUCLEI; ISOTOPES; JOINING; JOINTS; MICROSTRUCTURE; NUCLEI; OXIDES; OXYGEN COMPOUNDS; PLUTONIUM COMPOUNDS; PLUTONIUM ISOTOPES; PYROLYSIS; RADIOISOTOPES; TRANSURANIUM COMPOUNDS; YEARS LIVING RADIOISOTOPES