Tritium permeation through clean construction alloys
Tritium permeabilities of seven construction alloys and of a 1.5% Fe, 3.5% Ni tungsten alloy were measured over the 300 to 700/sup 0/C range with special care to avoid surface oxidation. Seven ..mu.. of nickel were electroplated onto both sides of the samples before tritium permeation rates were measured, and there was no surface oxidation. Permeation rates in seven of the eight experiments were 0.5 +- 0.05 power dependent on the tritium pressure. The experiment with Croloy 2.25 Cr, 1 Mo alloy indicated the rate to be 0.60 power dependent on pressure. Permeabilities of the seven construction alloys when plotted in Arrhenius form separate the alloys into two groups coinciding with a separation of the ferritic alloys from the austenitic and high nickel alloys. Permeabilities of ferritic alloys are generally greater than those of austenitics.
- Research Organization:
- Oak Ridge National Lab., TN
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5228282
- Journal Information:
- J. Mater. Energy Syst.; (United States), Journal Name: J. Mater. Energy Syst.; (United States) Vol. 1; ISSN JMSMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DEPOSITION
DIFFUSION
ELECTRODEPOSITION
ELECTROLYSIS
ELECTROPLATING
HYDROGEN ISOTOPES
IRON ALLOYS
ISOTOPES
LIGHT NUCLEI
LYSIS
NICKEL ALLOYS
NUCLEI
ODD-EVEN NUCLEI
PERMEABILITY
PHYSICAL PROPERTIES
PLATING
POROSITY
PRESSURE DEPENDENCE
RADIOISOTOPES
SURFACE COATING
TITANIUM ALLOYS
TRITIUM
YEARS LIVING RADIOISOTOPES