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Corrosion properties of a complex multi‐phase martensitic stainless steel depending on the tempering temperature
Author(s) -
Seifert M.,
Wieskämper D.,
Tonfeld T.,
Huth S.
Publication year - 2015
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.201508229
Subject(s) - tempering , materials science , martensite , metallurgy , corrosion , martensitic stainless steel , electrochemistry , chloride , microstructure , electrode , chemistry
In this work, the corrosion resistance of X190CrVMo20‐4‐1 martensitic stainless steel and the hardness are correlated with the tempering temperature. The steel was hardened from a typical austenitisation temperature, quenched in oil and tempered up to 600 °C. The corrosion resistance was investigated by means of electrochemical tests, in both 5% sulphuric acid and in 3% sodium chloride. Static immersion tests were performed in H 2 SO 4 only. The best compromise for a high hardness and corrosion resistance is found for tempering between 100 and 200 °C. The data obtained can be used for designing and application of this steel.