ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Surface Treatment and Corrosion
Corrosion Behavior of Seamless Pipeline C–Mn Steel by On-line Controlled Cooling Technique
Zheng LiQianlin WuZhonghua ZhangHongshuang Di
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2018 Volume 58 Issue 4 Pages 734-741

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Abstract

In order to obtain the low cost seamless pipe with the same mechanical properties of C–Mn–Mo steel, the application of controlled cooling technology was successfully applied to the C–Mn steel. Seamless pipeline C–Mn steel was prepared by on-line controlled cooling technique and corrosion behavior was studied experimentally by a salt spray wet/dry cyclic corrosion test. Seamless pipeline C–Mn–Mo steel by traditional quenching and tempering technique was used for comparison. Corrosion rate of C–Mn steel is higher than that of C–Mn–Mo steel in the whole test time. The rust layer of C–Mn steel contained more defects than that of C–Mn–Mo steel. Controlling cooling technique can significantly improve the strength of reduced-cost C–Mn steel, while the phenomenon can not reproduce for corrosion resistance.

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© 2018 by The Iron and Steel Institute of Japan
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