稀土离子Sm^(3+)对铝合金孔蚀行为的缓蚀作用研究

INHIBITION EFFECT OF RARE EARTH CATION Sm 3+ ON ALUMINUM ALLOY

用电化学等方法研究了稀土离子Ｓｍ３＋对铝合金在中性含Ｃｌ－离子溶液中孔蚀行为的缓蚀作用。结果表明。

The inhibition effect of rare earth cation Sm 3+ on aluminum alloy in 0.5 mol·L -1 NaCl has been studied by electrochemical method.The inhibition machanisim was studied with SEM,XPS and AES.It has been found that this cation can inhibite distinctively the expanding of pits.