cpomaemКоррозия: защита материалов и методы исследованийTitle in englishИФХЭ РАНcpomaem-9Research ArticleСтатьиЛауриновая кислота, октадециламин, бензотриазол и его производные, а также смеси этих соединений как камерные ингибиторы коррозии сталиLauric acid, octadecylamine, benzotriazole and its derivatives, as well as mixtures of these compounds as chamber corrosion inhibitors of steelЛучкинА. Ю.LuchkinA. Yu.

Ленинский проспект 31 к. 4, 119071 Москва

Leninsky pr. 31, 119071 Moscow

skay54@ya.ruГончароваО. А.GoncharovaO. A.

Ленинский проспект 31 к. 4, 119071 Москва

Leninsky pr. 31, 119071 Moscow

ЦветковаИ. В.TsvetkovaI. V.

Ленинский проспект 31 к. 4, 119071 Москва

Leninsky pr. 31, 119071 Moscow

КузнецовИ. А.KuznetsovI. A.

Ленинский проспект 31 к. 4, 119071 Москва

Leninsky pr. 31, 119071 Moscow

МакароваО. С.MakarovaO. S.

Ленинский проспект 31 к. 4, 119071 Москва

Leninsky pr. 31, 119071 Moscow

АндреевН. Н.AndreevN. N.

Ленинский проспект 31 к. 4, 119071 Москва

Leninsky pr. 31, 119071 Moscow

Федеральное государственное бюджетное учреждение науки Институт физической химии и электрохимии им. А.Н. Фрумкина РАН (ИФХЭ РАН)РоссияA.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of SciencesRussian Federation20230805202301124141Copyright © Лучкин А.Ю., Гончарова О.А., Цветкова И.В., Кузнецов И.А., Макарова О.С., Андреев Н.Н., 20232023Лучкин А.Ю., Гончарова О.А., Цветкова И.В., Кузнецов И.А., Макарова О.С., Андреев Н.Н.Luchkin A.Y., Goncharova O.A., Tsvetkova I.V., Kuznetsov I.A., Makarova O.S., Andreev N.N.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.cpmrm.ru/jour/article/view/9

Электрохимическими и коррозионными методами изучено защитное действие камерных ингибиторов коррозии стали на основе лауриновой кислоты. Установлено, что ее защитное действие может быть усилено добавками октадециламина, а также октадециламина и бензотриазола или его производных–толилтриазола и хлорбензотриазола. Механизм действия всех изученных композиций и их компонентов блокировочно – активационный, с доминированием активационного. Защитное действие изученных смесевых ингибиторов значительно превосходит защитное действие компонентов. Тем не менее, анализ взаимного влияния компонентов свидетельствует об отсутствии их синергетических взаимодействий. Эллипсометрическими методами показано, что адсорбция изученных ингибиторов тормозит или предотвращает рост оксида на стали при камерной обработке. При камерной обработке стали изученными ингибиторами на ее поверхности формируются наноразмерные адсорбционные пленки. Однозначная зависимость между их толщиной и защитным последействием камерных ингибиторов отсутствует, однако наиболее эффективные составы, характеризуются толщиной адсорбционных слоев от 10 и более нанометров.

The protective effect of chamber steel corrosion inhibitors based on lauric acid has been studied by electrochemical and corrosion methods. It has been established that its protective effect can be enhanced by additives of octadecylamine, as well as octadecylamine and benzotriazole or its derivatives-tolyltriazole and chlorobenzotriazole. The mechanism of action of all studied compositions and their components is blocking-activating, with a predominance of activation. The protective effect of the studied mixture inhibitors considerably exceeds the protective effect of the components. Nevertheless, an analysis of the mutual influence of the components indicates the absence of their synergistic interactions. It was shown by ellipsometric methods that adsorption of the studied inhibitors inhibits or prevents oxide growth on steel during chamber treatment. During chamber treatment of steel with the studied inhibitors nanosized adsorption films are formed on its surface. There is no unambiguous correlation between their thickness and the protective effect of chamber inhibitors, but the most effective compositions are characterized by the thickness of the adsorption layers of 10 nanometers or more.

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The authors declare that there are no conflicts of interest present.