STRESS-INDUCED DESORPTION FROM ALUMINUM, MAGNESIUM, AND MOLYBDENUM

Room-temperature tensile deformation experiments were performed on aluminum, magnesium, and molybdenum at 10 to the minus 10th power Torr; at the same time, chamber pressure and residual gas species were monitored. Pressure increases noted during the deformations were attributed to specimen desorpti...

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Bibliographic Details
Main Authors: Feuerstein, S, John, I. W
Format: Report
Language:English
Subjects:
ALUMINUM
CRYSTAL LATTICES
DEFORMATION
DEGASIFICATION
DISTORTION
Fabrication Metallurgy
GASES
HYDROGEN
LOW PRESSURE
MAGNESIUM
METALS
METHANE
MOLYBDENUM
STRAIN(MECHANICS)
STRESSES
TENSILE PROPERTIES
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Summary:Room-temperature tensile deformation experiments were performed on aluminum, magnesium, and molybdenum at 10 to the minus 10th power Torr; at the same time, chamber pressure and residual gas species were monitored. Pressure increases noted during the deformations were attributed to specimen desorption resulting from imposed stresses and their concomitant lattice distortions. Hydrogen and methane were evolved from all three metals. The extent of desorption, however, was different for each material. (Author)