Profilometric Measurements in Accele rated Testing of Steels for Cavitation Wear
Abstract
Three steels 25L, 08Kh14NDL, and 08Kh15N4DML are tested for cavitation wear on a magnetostrictive vibrator in fresh water at different oscillation amplitudes of the end face of the concentrator. The mass loss and profilograms of the wear surface are recorded. Dependence of the height of the irregularities on the duration of the cavitation impact is of the form of a polygonal line with two fracture points. The first fracture point corresponds to the end of the incubation period of cavitation wear. The value of the roughness height parameter corresponding to the first point of fracture does not depend on the intensity of cavitation impact for a given alloy. Proceeding from the results thus obtained a new technique for accelerated testing of steels is developed to determine the duration of the incubation period of cavitation wear.
About the Authors
Yu. N. Tsvetkov
Государственный университет морского и речного флота имени адмирала С. О. Макарова
Russian Federation
Russian Federation
E. O. Gorbachenko
Государственный университет морского и речного флота имени адмирала С. О. Макарова
Russian Federation
Russian Federation
References
1. Цветков Ю. Н. Кавитационное изнашивание металлов и оборудования. - СПб.: Изд-во СПбГПУ, 2003. - 155 с.
2. Георгиевская Е. П. Кавитационная эрозия гребных винтов и методы борьбы с ней. -Л.: Судостроение, 1978. - 206 с.
3. Фомин В. В. Гидроэрозия металлов. - М.: Машиностроение, 1977.-287 с.
4. Vyas B., Preece C. M. Cavitation erosion of face-centered cubic metals / Metallurg. Trans. A. 1977. Vol. 8A. P. 915 - 923.
5. Погодаев Л. И., Кузьмин В. Н. Структурно-энергетические модели надежности материалов и деталей машин. - СПб.: Академия транспорта РФ, 2006. - 608 с.
6. Hattori S., Ogisoa T., Minamib Y., Yamad I. Formation and progression of cavitation erosion surface for long exposure / Wear. 2008. Vol. 265. P. 1619 - 1625.
7. Haosheng C., Jiang L., Darong C., Jiadao W. Damages on steel surface at the incubation stage of the vibration cavitation erosion in water / Wear. 2008. Vol. 265. P. 692-698.
8. Цветков Ю. H., Горбаченко Е. О. Исследование кавитационного изнашивания сталей методом измерения профиля поверхности / Заводская лаборатория. Диагностика материалов. 2015. Т. 81. №11. С. 62 - 65.
Review
For citations:
Tsvetkov Yu.N., Gorbachenko E.O. Profilometric Measurements in Accele rated Testing of Steels for Cavitation Wear. Industrial laboratory. Diagnostics of materials. 2017;83(7):54-58. (In Russ.)
Views:
419
Email this article 