Protection of aluminium alloys from atmospheric corrosion by thin films of inhibitorsстатья
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Дата последнего поиска статьи во внешних источниках: 20 марта 2018 г.
Аннотация:Some prospects for protection of aluminum alloys by corrosion inhibitors such as carboxylates and trialkoxysilanes are considered. The efficiency of inhibition of anodic dissolution of Al alloys by these compounds in a neutral borate buffer solution containing chlorides (pH 7.4) was investigated. The protective capability of the layers obtained was estimated by an express method (drop test method) and by tests in a heat and moisture cabinet, and in a salt fog cabinet. The efficiency of treatment of Al alloys by aqueous solutions of organic inhibitors was compared with the protective ability of chromate films. It is shown that the passivation of Al alloys by the composition of oleyl sarcosinate with aminoethylaminopropyl–trimethoxysilane at a ratio of 3:1 is an efficient protection method even under salt fog conditions.