抄録
Dislocations in a thin section of a pure iron foil deformed by bending have been observed by transmission electron microscopy. The parallel dislocations up to several μ length or more, presumably intersecting but no degenerating dislocations, loops and half loops of dislocations are found. The average density of dislocations in a well annealed state and in a bent foil are, respectively, 106∼108/cm2 or less and 1011∼1012/cm2. The formation of dislocations due to the bending is concluded from the increase in the density of dislocations and from the stress present in the foil. The three-dimensional arrangement of dislocations in the specimen is proposed to interpret the results obtained. A simple method for the preparation of a thin foil is also developed.
