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研究了１０种Ｎ－烃基－α－氨基苄膦酸对Ａ３钢的缓蚀性能，试验表明：Ｎ－烃基－α－氨基苄基膦酸在ｐＨ值８～１０的碱性水溶液中对Ａ３钢具有较好的缓蚀性，在≤１００ｍｇ／Ｌ时，膦酸中所含极性基团愈多，其缓蚀性愈好。
The corrosion inhibition properties of 10 kinds of N-alkyl-α-aminobenzylphosphonic acid on A3 steel were studied. The results showed that N-alkyl-α-aminobenzylphosphonic acid had a good corrosion resistance to A3 steel in pH 8-10 aqueous solution Has a good corrosion inhibition, when ≤ 100mg / L, phosphonic acid contained in the more polar groups, the better corrosion inhibition.