本文選題：偶合電極 + 保護(hù)電位�。� 參考：《表面技術(shù)》2015年01期

【摘要】：目的研究油溫對(duì)海底輸油管道陰極保護(hù)的影響。方法通過模擬海水實(shí)驗(yàn),參照GB/T17848—1999實(shí)驗(yàn)方法,分析鐵電極、鋁電極和偶合電極在不同油溫下的腐蝕電位和偶合電流的變化規(guī)律,測(cè)試25℃和75℃海水中犧牲陽極的工作電位,并計(jì)算陽極的電流效率,觀察陽極的腐蝕形貌。結(jié)果在25~75℃范圍內(nèi),鋁電極隨著溫度升高自腐蝕電位負(fù)正移,鐵電極隨著溫度升高自腐蝕電位負(fù)移。偶合電位正移,偶合電流顯著增大。結(jié)論與25℃相比,犧牲陽極在75℃海水中,保護(hù)電位下降,陰極保護(hù)效果降低。
[Abstract]:Objective to study the effect of oil temperature on cathodic protection of submarine oil pipeline. Methods the corrosion potential and coupling current of iron electrode, aluminum electrode and coupling electrode at different oil temperature were analyzed by simulating seawater experiment and referring to GB/T17848-1999 method. The working potential of sacrificial anode in seawater at 25 鈩，

本文編號(hào)：1821415