交流电磁场对几种金属腐蚀行为的影响
Effects of AC Electromagnetic Field on Corrosion Performance of Several Metals
摘 要
采用交流电磁场对碳钢电极进行静态试验腐蚀，并利用循环冷却水系统动态模拟装置，在恒定工况条件（水浴55℃，流速1.2 m/s，入口温度30±1℃）下，对碳钢、不锈钢和黄铜等进行了交流电磁场影响腐蚀的动态腐蚀试验。静态腐蚀试验结果表明：交流电磁场可减小碳钢试样的腐蚀速率，证明了电磁场对碳钢腐蚀防护的有效性。动态腐蚀试验结果表明：交流电磁场对金属腐蚀速率及点蚀倾向有一定影响，对不同金属影响不同；交流电磁场作用下碳钢受磁矩影响呈现缓蚀，腐蚀速率呈下降趋势；而对不锈钢和黄铜腐蚀则表现出强化传质作用，致使金属的耐蚀性下降，腐蚀速率加快。
金属
腐蚀速率
动态模拟
磁矩
electromagnetic field
metal
corrosion rate
dynamic simulation
magnetic moment
Abstract
Static corrosion experiment of carbon steel electrode was performed under the condition of alternating electromagnetic field treatment. And dynamic corrosion experiments of different metals(carbon steel, stainless steel, brass) under the condition of electromagnetic field treatment were carried out using a dynamic simulation device of circulating cooling water under constant conditions (water bath temperature 55℃, flow velocity 1.2 m/s, inlet temperature 30±1℃). The static corrosion experimental results showed that the alternating electromagnetic field could reduce the corrosion rate of carbon steel. The dynamic corrosion experimental results showed that the corrosion rate and pitting tendency of carbon steel, stainless steel and brass were affected by electromagnetic field. And the corrosion of different metals was affected by electromagnetic field differently. Under the action of alternating electromagnetic field, the effect of magnetic moment could inhibit the corrosion of carbon steel, and decrease the corrosion rate. However, the corrosion rates of stainless steel and brass were accelerated by the effect of mass transfer enhancement under the action of alternating electromagnetic field.
中图分类号 TG174.3 DOI 10.11973/fsyfh-201803010
所属栏目 试验研究
基金项目 广东省石化装备故障诊断重点实验室开放课题（GDUPTKLAB201317）
收稿日期 2016/9/1
修改稿日期
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联系人作者王大成(wdc2001@163.com)
引用该论文: WANG Dacheng,CAO Shengxian,LÜ,Changqi. Effects of AC Electromagnetic Field on Corrosion Performance of Several Metals[J]. Corrosion & Protection, 2018, 39(3): 213
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【3】邵林广,张华. 磁化水处理器在武钢循环冷却水系统中的应用[J]. 武汉大学学报,2007,30(2):161-163.
【4】ZHANG W,LI G Q,ZHANG Z J,et al. Fouling model of internal helical-rib tubes based on Prandtle analogy[J]. Proceedings of the CSEE,2008,28(35):66-70.
【5】LI H H,LIU Z F,GUO Y H,et al. Influence of the electrostatic water treatment on the crystallization behavior of CaCO3 and the synergistic scale inhibition performance with the green scale inhibition[J]. CIESC Journal,2013,64(5):1736-1742.
【6】XIONG L,MIAO X F,WU Y M,et al. Anti-scaling effect comparison of high-frequency electromagnetic pulses stimulation in processing chambers with different chambers with different electrodes[J]. CIESC Journal,2012,63(10):3221-3224.
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【8】郗丽娟,孙浩儒,胡杨,等. 变频磁场对工业循环冷却水的杀菌性能研究[J]. 工业水处理,2009,29(11):58-60.
【9】GHABASHY M A. Effect of magnetic field on rate of steel corrosion in aqueous solution[J]. Anti-Corrosion,1988,35:12.
【10】BUSCH K W,BUXDH M A,PARKER D H. Studies of a water treatment device that uses magnetic fields[J]. Corrosion,1986,42(4):211-221.
【11】BIKUL'CHYUS G,RUCHINSKENE A,DENINIS V. Corrosion behavior of low-carbon steel in tap water treated with permanent magnetic field[J]. Protection of Metals,2003,39(5):443-447.
【12】王建国,何芳,狄昊. 电磁抑垢实验中磁场作用于电导率及pH的关联分析[J]. 化工学报,2012,63(5):1468-1473.
【13】BOTELLO-ZUBIATE M E,ALVAREZ A,MARTÍNEZ-VILLAFAÑE A,et al. Influence of magnetic water treatment on the calcium carbonate phase formation and the electrochemical corrosion behavior of carbon steel[J]. Alloys and Compounds,2004,369(28):256-259.
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