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The corrosion behaviour of Cr/Co/Mo‐alloyed low residual carbon steels in seawater solutions
Author(s) -
AlHajji Jamal N.,
Reda Mahmoud Rajab
Publication year - 1992
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199200476
Subject(s) - molybdenum , chromium , metallurgy , cobalt , seawater , dissolution , carbon steel , carbon fibers , materials science , chemistry , corrosion , nuclear chemistry , composite material , composite number , geology , oceanography
The general corrosion behaviour of low residual steels alloyed with chromium or cobalt or molybdenum in seawater solutions was studied. The carbon content of low residual steels ranged from 0.1 to 0.4%, chromium content between 1.0 and 4.0%, cobalt content between 1.0 and 3.0%, and molybdenum content between 0.3 and 1.0%. Repeated laboratory tests demonstrated that low levels of chromium reduce the dissolution rate of low residual steels in seawater solutions. The results of this study suggest that cobalt alloying plays a neutral role, whereas molybdenum plays a major role in reducing the corrosion rates, particularly in higher carbon steels.