Hydrogen Behavior in an Ultrafine-Grained Electrodeposited Pure Iron
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概要
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The behavior of hydrogen in an ultrafine-grained electrodeposited pure iron with Lankford (r) value larger than 7.0 was studied by small angle neutron scattering (SANS) and thermal desorption spectroscopy (TDS). Nano-sized inhomogeneity consisting of hydrogen bubble exists in the deposited specimen. The bubble size increases a little by 673 K annealing and then all the bubbles disappear after 973 K annealing. With rolling at room temperature (RT), the bubble size and number density are found to decrease, which must be caused by the change in the status of hydrogen location during plastic deformation. Crystal rotation and grain coalescence are revealed to occur after rolling deformation from electron backscattered diffraction (EBSD) results.
- 2011-08-15
著者
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Ohnuma Masato
National Institute For Materials Science
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Suzuki Junichi
Reseach And Education Center For Winter Sports Hokkaido University Of Education
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Tomota Yo
Graduate School Of Sci. And Engineering/frontier Res. Center On Atomic Sci. Ibaraki Univ.
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SU Yuhua
Ibaraki University
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Suzuki Junichi
Research Center For Neutron Science And Technology Comprehensive Research Organization For Science And Society (cross)
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