Okrętowe stale austenityczne : charakterystyka eksploatacyjna
Journal Title: Autobusy. Technika, Eksploatacja, Systemy Transportowe - Year 2017, Vol 214, Issue 12
Abstract
The article presents the results of mechanical and electrochemical tests of steel 1.3964 and 1.4301 used for the construction of a modern mine destroyer. Exploitation in the marine environment and the operating loads resulting from the ship’s body movement on the wave cause, under certain conditions, electrochemical stress corrosion. Stresses in shipbuilding components and the value of electrochemical potential are the basic parameters characterizing the susceptibility of these materials to corrosion, initially pitting and later the intercrystalline one. The use of local electrochemical potential measurement method (Patent PL 216723) during operation as well as determination of the accompanying local deformation (stress) form the basis for corrosion diagnostics, which initiation is preceded by the oxide film’s cracking signalized by the reduction of the electrochemical potential. Steel 1.3964 used for the body’s and superstructure’s structural components has higher mechanical and corrosion resistance than steel 1.4301.
Authors and Affiliations
Wojciech Jurczak
Keywords
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