The dissolution of atoms from steps on a metal surface

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Abstract
The influence of surface waves on the dissolution of atoms from steps on the surface of a metal is discussed. It is shown that atoms at the edge of an infinite plane surface are able to dissolve at rates ≍ 104 faster than atoms from the plane of the surface. The introduction of steps of separation ιl across this surface has two effects: This last condition leads to the conclusion that there should be a critical spacing of the steps of the surface, below which the atoms at the steps will be vibrating too rapidly to become readily solvated. The predicted critical spacing ≍5 × 10−5cm is in good agreement with that found from stress corrosion cracking tests on brasses ∼2 × 10−5cm and stainless steels ∼4 × 10−5 cm.
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