Der korrosive Gefügezerfall in Theorie und Praxis

Abstract

A survey is given of various phenomena of corrosive attack effecting a disintegration of the polycrystalline structure of metallic materials.
Four morphologically different types of disintegration are described and illustrated with examples. Furthermore, some of the most important activating or inhibiting factors governing this types of corrosion are mentioned briefly. The technically important case of stress corrosion cracking is treated in some detail.
A short review of the present state of the theory of the intercrystalline and transcrystalline attack of metallic aggregates is given. Discussing the arguments for and against postulated electrochemical and mechanical mechanisms it is finally concluded that a comprehensive explanation of the phenomena cannot be given without further research and it is presumed that a uniform mechanism of crack propagation probably does not exist.