日本金属学会誌

J. Japan Inst. Metals, Vol. 18, No. 11 (1954),
pp. 592-594

On Thermal Etch-Pits in Aluminium

Sadakichi Kitajima1

1Faculty of Technology, Naniwa University,

Abstract:

Thermal etch-pits grubbed up on the surfaces of high purity aluminium with coarse grains by annealing at 580°, in vacuum of 10-4 ~ 10-5 mm Hg were microscopically observed. According to the observational results, the density of the thermal etch-pits was not definite but varied with grains. The density of thermal etch-pits on the {100} surfaces is always smaller than that on the {111} and {110} surfaces.


(Received 1954/6/24)

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