Abrasion Wear Behavior of High-chromium Cast Iron

• Autorzy: Pokusová M. , Brúsilová A. , Šooš L'. , Berta I.

Identyfikatory

DOI

10.1515/afe-2016-0028

• Języki publikacji: EN

Abstrakty

EN

High-chromium cast irons are used as abrasion resistant materials. Their wear resistance depends on quantity of carbides and the matrix supporting these carbides. The paper presents the results of cast irons of chemical composition (in wt. %) 19–22 Cr and 2–4.5 C alloyed by 1.7 Mo + 5 Ni + 2 Mn to improve their toughness, which were tested in working conditions of ferroalloys crushing. Tests showed that these as-cast chromium cast irons with mostly austenitic matrix achieved the hardness of 38-45 HRC, but their relative abrasion resistance Ψ ranged from 1.3 to 4.6, was higher comparing to the tool made from the X210Cr12 steel heat treated on hardness 61 HRC. The transformation of austenite into martensite occurs not only at the worn strained areas (on a surface of scratch) but also in their neighbourhood. Due to the work hardening of relatively large volumes of transformed austenite the cast iron possesses high abrasion resistance also on the surfaces where low pressures are acting. The tough abrasion-resistant cast iron well proved for production of dynamic and wear stressed castings e.g., crusher hammers, cutting tools for ceramic etc.

Słowa kluczowe

EN

wear resistant alloys; mechanical properties; high chromium cast iron; abrasion resistance

PL

stopy odporne na zużycie; właściwości mechaniczne; żeliwo wysokochromowe; odporność na ścieranie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2016
• Tom: Vol. 16, iss. 2
• Strony: 69--74
• Opis fizyczny: Bibliogr. 13 poz., il., rys., tab., wykr.

Twórcy

autor

Pokusová M.

• Faculty of Mechanical Engineering, Slovak University of Technology, Nám. slobody 17, 812 31 Bratislava, Slovakia

autor

Brúsilová A.

• Faculty of Mechanical Engineering, Slovak University of Technology, Nám. slobody 17, 812 31 Bratislava, Slovakia

autor

Šooš L'.

• Faculty of Mechanical Engineering, Slovak University of Technology, Nám. slobody 17, 812 31 Bratislava, Slovakia

autor

Berta I.

• Faculty of Mechanical Engineering, Slovak University of Technology, Nám. slobody 17, 812 31 Bratislava, Slovakia

Bibliografia

• [1] Laird, M., Gundlach, J., Roehring, K. (2000). Abrasion-Resistant Cast Iron Handbook. American Foundry Society.
• [2] Kopyciński, D. (2009). Inoculation of chromium white cast iron. Archives of Foundry Engineering. 9(1), 191-194.
• [3] Studnicki, A. (2008). Effect of boron carbide on primary crystallization of chromium cast iron. Archives of Foundry Engineering. 8(1), 173-176.
• [4] Kopyciński, D., Guzik, E., Siekaniec, D. & Szczęsny, A. (2014). Analysis of the High Chromium Cast Iron Microstructure after the Heat Treatment. Archives of Foundry Engineering. 14(3), 43-46.
• [5] Hann, S.K. & Gates, J.C. (1997). A transformation toughening white cast iron. J. Mater. Sci. 32(5), 1249-1259.
• [6] Kopyciński, D., Piasny, S., Kawalec, M. & Madizhanova, A. (2014). The Abrasive Wear Resistance of Chromium Cast Iron. Archives of Foundry Engineering. 14(1), 63-66.
• [7] Suchoń, J., Studnicki, A. & Przybył, M. (2010). Stereology of carbide phase in modified hypereutectic chromium cast iron. Archives of Foundry Engineering. 10(2), 169-174.
• [8] Jiyang, Z. (2011). Colour Metallography of Cast Iron II. China Foundry. 8(4), 447-462.
• [9] Correa, R. et al. (2011). Effect of boron on microstructure of directionally solidified high chromium white irons. Int. J. Cast Metal Research. 24(1), 37-44.
• [10] Orłowicz, W. & Trytek, A. (2003). Effect of rapid solidification on sliding wear of iron castings. Wear. 254, 154-163.
• [11] Inthidech, S. & Matsubara, Y. (2008). Effect of Alloying Elements on Variation of Micro-Hardness during Heat Treatment of Hypoeutectic High Chromium Cast Iron. Materials Transactions. 49(10), 2322-2330.
• [12] Xi, J., Zou, Q., Liu, S. & Song, G. (1993). Influence of retained austenite on the wear resistance of high chromium cast iron under various impact loads. Wear. 162-164, 83-88.
• [13] Murgaš, M. & Pokusová, M. (2006). High-chromium cast iron with higher ductility. Archives of Foundry. 6(18)2/2, 171-176.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.