Hydrogen and deuterium diffusion in vanadium-titanium alloys

Journal Article · Sun Feb 01 00:00:00 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), Vol. 18A:2
• Country of Publication: United States
• Language: English

Related Subjects

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