On Peculiarities of Influence of Chemical Composition on Formation of Structure and Properties of Alloyed Cast Irons in the As-Cast State

Issues » Volume 44, Issue 10

M. A. Kovzel, O. I. Babachenko, E. V. Parusov, O. V. Parusov

Z. I. Nekrasov Institute of Ferrous Metallurgy of the N.A.S. of Ukraine, 1 Academika Starodubova Square, UA-49107 Dnipro, Ukraine

Received: 06.02.2022; final version - 11.08.2022. Download: PDF

We conducted a study of the structure, phase composition and wear resistance of iron-carbon alloys used and planned to be used in manufacture of hot deformation tools. As established, chromium–manganese cast iron with chromium content of 12.5…13.5% and manganese content of 15.0…16.0% is advisable to be used as a material, in particular, for piercing mandrels. As shown, reduction of expensive alloying elements (Cr, Ni) contained in chromium–manganese cast iron in comparison with traditional alloys such as 300Х32Н3ФЛ and ‘nikorin’ is performed due to the higher contents of Mn. It was found that the increase in wear resistance of chromium–manganese cast iron is due to the high microhardness of the matrix, austenite–carbide eutectic based on carbide type Me$_{7}$C$_{3}$ and, apparently, it is conditioned by deformation-phase transformations that can occur during abrasion wear.

Key words: high-chromium cast iron, chromium–manganese alloy, chromium–nickel alloy, structure, phase composition, microhardness, wear resistance.

URL: https://mfint.imp.kiev.ua/en/abstract/v44/i10/1347.html

DOI: https://doi.org/10.15407/mfint.44.10.1347

PACS: 81.05.Bx, 81.30.-t, 81.30.Hd, 81.40.-z, 81.40.Gh

Citation: M. A. Kovzel, O. I. Babachenko, E. V. Parusov, and O. V. Parusov, On Peculiarities of Influence of Chemical Composition on Formation of Structure and Properties of Alloyed Cast Irons in the As-Cast State, Metallofiz. Noveishie Tekhnol., 44, No. 10: 1347—1359 (2022)

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