EFFECT OF Cu AND Ni ON CORROSION RESISTANCE OF LOW ALLOYED STEELS FOR CARGO OIL TANK
The corrosion behavior of four kinds of low alloyed steels in acid chloride solution(10%NaCl,pH=0.85)was studied on the basis of International Maritime Organization(IMO)standard.Results indicated that,with the increase of Cu and Ni content in steels,the corrosion rate exhibited a law of linear decline,polarization curve moved to positive direction,corrosion potential raised,current density significantly decreased and the interface electric resistance obviously increased.The mechanism of improvement the corrosion resistance of Cu bearing steel can be mainly attributed to the Cu enrichment on the surface of rust layer by means of re-deposition particles(100~500 nm)and keeping high stability.However,Ni was not found in the rust layer but improved the corrosion potential of matrix.
Copper Nickel Cargo oil tank Corrosion
Luo Xiaobing Chai feng Su hang Yang caifu Li hao Hou yaqing Zhang Zhengyan
Institute for Engineering steel,Central Iron and Steel Research Institute,Beijing 100081,China
国内会议
杭州
英文
1125-1131
2015-11-11（万方平台首次上网日期，不代表论文的发表时间）