Hydrogen and deuterium diffusion in vanadium-titanium alloys

Journal Article · Sun Feb 01 04:00:00 EST 1987 · Metall. Trans., A; (United States)

DOI:https://doi.org/10.1007/BF02825705· OSTI ID:7204226

Peterson, D T; Herro, H M

Hydrogen and deuterium diffusion coefficients were measured in vanadium-titanium alloys, containing up to 30 at. pct Ti, by Boltzmann-Matano techniques. Hydrogen and deutrium diffusivity decreased rapidly with titanium concentration. The diffusion coefficients showed an Arrhenius temperature dependence in each alloy between 230 and 473 K with activation energies that increased with titanium concentration. The diffusion coefficient decreased linearly with hydrogen concentration in all alloys. The terminal solid solubilities increased markedly with titanium concentration with deuterium showing a larger terminal solid solubility than hydrogen below ten percent titanium. The diffusion results do not fit a localized deep trapping of hydrogen by the titanium atoms.

• Research Organization: Dept. of Materials Science and Engineering and Senior Metallurgist, Ames Lab. - United States Dept. of Energy, Iowa State Univ., Ames, IA (US)
• OSTI ID: 7204226
• Journal Information: Metall. Trans., A; (United States), Journal Name: Metall. Trans., A; (United States) Vol. 18A:2; ISSN MTTAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
ACTIVATION ENERGY
ALLOYS
ARRHENIUS EQUATION
ATOM TRANSPORT
DEUTERIUM
DIFFUSION
ELEMENTS
ENERGY
EQUATIONS
HIGH TEMPERATURE
HYDROGEN
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
LOW TEMPERATURE
MEDIUM TEMPERATURE
METALS
NEUTRAL-PARTICLE TRANSPORT
NONMETALS
NUCLEI
ODD-ODD NUCLEI
QUANTITY RATIO
RADIATION TRANSPORT
SOLUBILITY
STABLE ISOTOPES
TITANIUM
TITANIUM ALLOYS
TRANSITION ELEMENTS
VANADIUM ALLOYS