The Abrasive Wear Resistance of Chromium Cast Iron

• Autorzy: Kopyciński D. , Piasny S. , Kawalec M. , Madizhanova A.

Identyfikatory

DOI

10.2478/afe-2014-0015

• Języki publikacji: EN

Abstrakty

EN

The resistance of cast iron to abrasive wear depends on the metal abrasive hardness ratio. For example, hardness of the structural constituents of the cast iron metal matrix is lower than the hardness of ordinary silica sand. Also cementite, the basic component of unalloyed white cast iron, has hardness lower than the hardness of silica. Some resistance to the abrasive effect of the aforementioned silica sand can provide the chromium white cast iron containing in its structure a large amount of (Cr, Fe)₇C3 carbides characterised by hardness higher than the hardness of the silica sand in question. In the present study, it has been anticipated that the white cast iron structure will be changed by changing the type of metal matrix and the type of carbides present in this matrix, which will greatly expand the application area of castings under the harsh operating conditions of abrasive wear. Moreover, the study compares the results of abrasive wear resistance tests performed on the examined types of cast iron. Tests of abrasive wear resistance were carried out on a Miller machine. Samples of standard dimensions were exposed to abrasion in a double to-and-fro movement, sliding against the bottom of a trough filled with an aqueous abrasive mixture containing SiC + distilled water. The obtained results of changes in the sample weight were approximated with a power curve and shown further in the study.

Słowa kluczowe

EN

abrasive wear resistance; white cast iron; carbides

PL

odporność na ścieranie; żeliwo białe; węgliki

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 1
• Strony: 63--66
• Opis fizyczny: Bibliogr. 9 poz., rys., tab., wykr.

Twórcy

autor

Kopyciński D.

• AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Piasny S.

• AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Kawalec M.

• AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Madizhanova A.

• KazNTU Kazakhstan National Technical University, Satpayev Str. 22, Almaty, Kazakhstan

Bibliografia

• [1] Guzik, E. (2001). Some selected problems concerning the processes of cast iron improvement. Archives of Foundry Engineering. 1(spec.), 1-128.
• [2] David, J. R. (1996). Cast Irons. ASM Specialty Handbook, ASM Inter. Mater. Park, OH.
• [3] Studnicki, A. (2013). The role of selected modifiers in crystallization of chromium cast iron with high wear resistance. Archives of Foundry Engineering. 1(spec.), 1-137.
• [4] Studnicki, A., Kondracki, M., Szajnar, J. & Wróbel, T. (2013). Crystallization of low alloyed construction cast steel modified with V and Ti. Archives of Foundry Engineering. 13, 92-96.
• [5] Kopyciński, D., Guzik, E. & Piasny, S. (2011). The structure of abrasion-resisting castings made of chromium cast iron. Archives of Foundry Engineering. 11, 61-64.
• [6] Kopyciński. D. (2009). Inoculation of chromium white cast iron. Archives of Foundry Engineering. 9, 191-194
• [7] Wołczyński, W., Guzik, E., Wajda, W. & Jędrzejczyk, D. (2012). CET in Solidifying Roll – Thermal Gradient Field Analysis Archives of Metallurgy and Materials. 57, 105-117.
• [8] Kalandyk, B. & Głownia, J. (2001): Estimate of mathematical model of weight losses kinetic in Miller apparatus. Archives of Foundry. 2(4), 376-383.
• [9] Taran, J.N., Mazur, W.I. (1978). Metallurgija Publications. Moscow.