Magnetic relaxation studies of the motion of hydrogen and deuterium in iron
Journal Article
·
· Acta Metall.; (United States)
The motion of hydrogen and deuterium in iron at low temperatures was studied using magnetic relaxation techniques. A number of relaxations were observed which could be interpreted as due to H(D) mobility in various configurations. Relaxations at about 29, 34, 39 K (75, 93, 104 K) were identified as the reorientation motion of H--H (D--D) clusters while at 52 K (122 K) the relaxation was due to long range diffusion of H--H (D--D) clusters. Impurity trapping of H by C and N was studied and values for the C--H and N--H binding enthalpies were obtained. The motion of H around a C trapping site was observed to give a low temperature relaxation, the kinetics of which obeyed the Flynn--Stoneham tunneling theory. Trapping of H by dislocations was also observed and a H cold work peak was studied.
- Research Organization:
- Univ. of Illinois, Urbana
- OSTI ID:
- 6427910
- Journal Information:
- Acta Metall.; (United States), Journal Name: Acta Metall.; (United States) Vol. 26:7; ISSN AMETA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
CARBON
CRYOGENIC FLUIDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DEMAGNETIZATION
DEUTERIUM
DIFFUSION
DISLOCATIONS
ELEMENTS
ENTHALPY
FLUIDS
HYDROGEN
HYDROGEN ISOTOPES
IMPURITIES
IRON
ISOTOPES
LIGHT NUCLEI
LINE DEFECTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
METALLURGICAL EFFECTS
METALS
MOBILITY
NONMETALS
NUCLEI
ODD-ODD NUCLEI
ORIENTATION
PERMEABILITY
PHYSICAL PROPERTIES
RELAXATION
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
TIME DEPENDENCE
TRANSITION ELEMENTS
TRAPPING
360103* -- Metals & Alloys-- Mechanical Properties
CARBON
CRYOGENIC FLUIDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DEMAGNETIZATION
DEUTERIUM
DIFFUSION
DISLOCATIONS
ELEMENTS
ENTHALPY
FLUIDS
HYDROGEN
HYDROGEN ISOTOPES
IMPURITIES
IRON
ISOTOPES
LIGHT NUCLEI
LINE DEFECTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
METALLURGICAL EFFECTS
METALS
MOBILITY
NONMETALS
NUCLEI
ODD-ODD NUCLEI
ORIENTATION
PERMEABILITY
PHYSICAL PROPERTIES
RELAXATION
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
TIME DEPENDENCE
TRANSITION ELEMENTS
TRAPPING