Effect of Chemical Composition, Microstructure and Mechanical Properties on the Wear Resistance of Rail Steel

Autor:	A. B. Dobuzhskaya, G. N. Yunin, A. M. Yunusov, G. A. Galitsyn, E. V. Polevoi
Rok vydání:	2020
Předmět:	Materials science fungi Abrasive Metallurgy Dispersity technology industry and agriculture chemistry.chemical_element Microstructure Chromium chemistry Ferrite (iron) General Materials Science Pearlite human activities Chemical composition Carbon
Zdroj:	Steel in Translation. 50:906-910
ISSN:	1935-0988 0967-0912
Popis:	Rail steel samples have been tested for abrasive wear and sliding wear. It is shown that the wear resistance of rail steel is mainly determined by the carbon content therein and by the dispersity and structural homogeneity thereof: with increasing carbon content in the rail steel, the wear resistance exhibits an increase due to a decrease in the interlamellar distance of pearlite, as well as to a decrease in the amount of excess ferrite. Also, increasing chromium amount in steel promotes an increase in wear resistance. It has been found that the wear resistance of rail steel depends on the combination of hardness and plastic properties thereof. A high wear resistance level is predicted for rails made of hypereutectoid steel with a carbon content amounting to about 0.90% and a chromium content of about 0.30%
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a6ec6e5d7d530b4dbbb3b1bf11c16e86 https://doi.org/10.3103/s0967091220120037 Zobrazit plný text záznamu Full text from SpringerLink