Hydrogen and deuterium diffusion in vanadium alloys. [Containing Ti or Nb]

Technical Report · Thu Jul 01 04:00:00 EDT 1982

OSTI ID:6865063

Herro, H M

H and D diffusion coefficients were measured between 473 and 230/sup 0/K in alloys of vanadium containing Ti or Nb, using Boltzmann-Matano techniques. Both H and D diffusion decreased with H isotope concentration in all alloys at all temperatures. Effect of Niobium additions was to reduce the rate of H migration to a minimum in the 75 at. % Nb alloy. The rate of H migration decreased with Ti up to 30 at % Ti. The diffusion coefficients exhibited an Arrhenius temperature dependence and the resulting diffusion activation energy and D/sub 0/ values both increased with Ti and with Nb to a miximum of 75 at % Nb. D diffusion activation energies were larger than corresponding H values in all alloys. The diffusion behavior found in these alloys is not well represented by current local deep trapping models. 12 figures, 6 tables.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6865063
• Report Number(s): IS-T-1000; ON: DE83004964
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTIVATION ENERGY
ALLOYS
ATOM TRANSPORT
DATA
DEUTERIUM
DIFFUSION
ELEMENTS
ENERGY
EXPERIMENTAL DATA
HYDROGEN
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
NEUTRAL-PARTICLE TRANSPORT
NIOBIUM ALLOYS
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
PERMEABILITY
RADIATION TRANSPORT
STABLE ISOTOPES
TEMPERATURE DEPENDENCE
TITANIUM ALLOYS
VANADIUM ALLOYS