Osipov M.Y. Research of the effect of alloys structural condition on their resistance to abrasive wear under elevated temperatures

  • М.Ю. Осипов

Abstract

The paper reflects the results of alloys structural condition effect in terms of field tests under abrasive wear and ele-vated (up to 500 - 550 °C) temperatures. The tests were performed on mixer scrapers which mix refractory mass for pressing chamotte refractories. Scraper edges were subjected to intense abrasive wear and heated up to 550 °C at the result of friction with the skin of compressed re-fractory mass. Scraper plates installed at the same place and periodically replaced served as samples. The plates were made of high-speed steel Х12Ф1 and Х12 and then heat-treated to different structural conditions of matrix alloys containing vari-ous amounts of carbide phase. It was found that under conditions of abrasive wear and temperatures up to 550 °C the lowest wear resistance have the materials with ferritic matrix, while the highest wear resistance have predominantly materials with martensitic condition. Austenitic-martensitic alloys occupy intermediate position in wear resistance scale. It was established that carbide phase plays the most important role in wear resistance improving under such condi-tions. The test results demonstrate the existence of proportional relation between wear resistance and hardness, while under one type of matrix, - between the wear resistance and the amount of carbide phase.

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Published
2014-05-23
How to Cite
Осипов, М. (2014). Osipov M.Y. Research of the effect of alloys structural condition on their resistance to abrasive wear under elevated temperatures. Problems of Tribology, 72(2), 51-57. Retrieved from http://tribology.khnu.km.ua/index.php/ProbTrib/article/view/111
Section
Articles