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Electrochemical investigations of high strength Stainless steels for rock and ground anchors
Author(s) -
Mietz J.,
Rückert J.
Publication year - 1997
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19970480603
Subject(s) - metallurgy , austenite , materials science , electrochemistry , chloride , austenitic stainless steel , carbon steel , corrosion , electrode , microstructure , chemistry
Stainless steel ground anchors are still rarely used in Europe. A project was initiated to demonstrate the technical and economic performance of stainless steels for such applications. Three different steel grades were examined, i.e. two austenitic grades 1.4311 (‘304LN’) and 1.4406 (‘316LN’) and one duplex grade 1.4362 (‘2304N’). All of them had low carbon contents (< 0.03%) and were alloyed with nitrogen to improve their strength properties. Different electrochemical tests were carried out to assess the performance of stainless steel in chloride/sulphate environments. The results confirmed that the investigated stainless steels may be employed for a wide range of corrosive ground anchor environments.