用电化学方法、红外反射光谱法研究AMT(2-氨基-5-巯基-1,3,4-噻二唑)在青铜-5％柠檬酸体系中的缓蚀行为和机理.结果表明,AMT能有效抑制青铜在柠檬酸中的腐蚀,属混合型缓蚀剂.红外反射光谱表明,膜的最外层结构为Cu(Ⅰ)AMT,AMT中-NH2参与一价铜的络合反应,环上离氨基最近的N参与配位. 缓蚀机理归因于成相膜的形成. The corrosion behavior and mechanism of AMT (2-amino-5-mercapto-1,3,4-thiadiazole) in bronze-5% citric acid system were studied by electrochemical methods and infrared reflectance spectroscopy. The results showed that AMT Can effectively inhibit the corrosion of bronze in citric acid, which is a mixed corrosion inhibitor.The infrared reflectance spectroscopy shows that the outermost layer structure of the film is Cu (Ⅰ) AMT, the -NH2 in AMT is involved in the complexation of monovalent copper, The nearest N to the amino group is involved in coordination and the mechanism of corrosion inhibition is attributed to the formation of a phase-forming film.