(金屬腐蝕與防護(hù)國家重點(diǎn)實(shí)驗(yàn)室， 中國科學(xué)院金屬腐蝕與防護(hù)研究所， 沈陽 110015)
摘 要: 利用濕砂土作為模擬土壤， 通過失重法及電化學(xué)方法相結(jié)合，研究了鹽濃差(2.0%Cl-及0.02%Cl-)對LC4鋁合金的宏電池腐蝕的影響規(guī)律。 結(jié)果表明： 位于高鹽土壤中的試樣為宏電池陽極而加速腐蝕， 宏電池作用強(qiáng)度達(dá)到4.2倍。
關(guān)鍵字: LC4鋁合金； 土壤鹽濃差； 宏電池腐蝕
（State Key Lab for Metals Corrosion and Protection;Institute of Metals Corrosion and Protection, Chinese Academy of Sciences, Shenyang 110015, P.R.China）
Abstract:The effect of salt concentration difference macrocell (2.0% Cl- and 0.2% Cl- ) on the corrosion of LC4 alumimium alloy was studied in the simulatedsoil of moisture sands by means of mass loss and electrochemistry. It is shown that the corrosion rates of samples in the higher salt concentration soil were accelerated as cathods， and the rate of the macrocell effect was 4.2 times.
Key words: LC4 aluminium alloy; salt concentration in soil; macrocell corrosion
