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1.2m/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。
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 Fooling 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.
出处
《腐蚀与防护》
CAS
北大核心
2018年第3期213-217,共5页
Corrosion & Protection
基金
广东省石化装备故障诊断重点实验室开放课题(GDUPTKLAB201317)
关键词
交流电磁场
金属
腐蚀速率
动态模拟
磁矩
electromagnetic field
metal
corrosion rate
dynamic simulation
magnetic moment
