稀土元素对提高16Mn钢抗海水腐蚀性能及其物理化学行为的研究

FUNCTION OF RARE EARTH ELEMENTS IN IMPROVING THE CORROSION RESISTANCE OF 16Mn STEEL IN SEA WATER AND THEIR PHYSICOCHEMICAL BEHAVIOR

本文研究了稀土元素在低硫16Mn钢中的物理化学行为及其提高抗海水腐蚀的能力。结果表明,Ce或La都具有脱硫、脱氧能力,细化晶粒,净化晶界和基体等作用。极化曲线表明,稀土元素提高了低硫16Mn钢抗海水腐蚀的能力。

The physicochemical behavior of rare earth elements in low sulphur 16Mn steel and their ebility to enhance the corrosion resistance of the steel in sea water were studied in this paper. The results indicate that Ce and La in 16Mn steel all have the abilities such as deoxidation, desulphi-dation, refining grains and cleaning grain boundaries and matrix etc. The anodic and cathodic polarization curves show that the rare earth elements added in 16Mn steel enhance the corrosion resistance of the steel in sea wa...