应用电化学极化曲线、扫描电镜(SEM)和腐蚀疲劳实 验研究了有机胺对Al合金在3.5%NaCl介质中的缓蚀作用和对腐蚀疲劳寿命的影响.结果表明 ，有机胺对Al合金在NaCl溶液中具有较好的缓蚀作用，并在一定程度上抑制了Al合金点蚀的 发生；有机胺提高了Al合金在NaCl溶液中的腐蚀疲劳寿命，异丙胺比苄胺提高的幅度大.
The inhibition effect of organic amines on LY12 alum inum alloy in 3.5%NaCl solution was studied by experiments with electrochemical me thod,scanning electronic microscopy (SEM) and corrosion fatigue.The experimental results showed that the organic amines had a good inhibitive efficiency and inh ibited the pitting corrosion of the alloy to some extent. The CF experiments showed that the organic amines increased the CF life of aluminum alloy in 3.5%Na Cl solution.Furthermore,iso-propylamine is even better than benzylamine in incre asing CF lifetime of LY12.
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