|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Specifics of brass corrosion in solutions of some organic acidsстатья
- Авторы: Avdeev Ya G., Anfilov K.L., Ivanova V.S., Andreeva T.E., Rybakov S.Yu
- Журнал: International Journal of Corrosion and Scale Inhibition
- Том: 13
- Номер: 3
- Год издания: 2024
- Издательство: Некоммерческое партнерство коррозионистов "Вакор"
- Местоположение издательства: Москва
- Первая страница: 1501
- Последняя страница: 1519
- DOI: 10.17675/2305-6894-2024-13-3-8
- Аннотация: The kinetics of corrosion of brass LK62-0.5 in freely aerated solutions of acetic (0.25–8.0 M) and citric (0.001–2.0 M) acids was studied. The effect of the convective factor of the environment and addition of a corrosion inhibitor, catamine AB, on these processes was also investigated. The presence of a corrosion product, Cu(II) cations, has an accelerating effect on the corrosion of brass in the environments studied, including solutions containing catamine AB. The dependence of the corrosion rate of brass on the convective factor in freely aerated acid solutions and in acid solutions containing Cu(II) cations is formally described by the equation k=a+b·n1/2, where a and b are empirical parameters and n is the rotation frequency of the propeller magnetic stirrer that stirs the solution. In solutions of acetic and citric acids, including stirred media containing Cu(II) cations, the corrosion rate of brass does not exceed 0.91 and 0.55 g/(m2·h), respectively. In the same environments with addition of catamine AB, the corrosion rate of brass does not exceed 0.14 g/(m2·h). Given the low corrosion rate of brass in the inhibited acidic environments, the results obtained are of practical interest, especially for solutions of acetic acid.
- Добавил в систему: Авдеев Ярослав Геннадиевич