Copper in Ausferritic Compacted Graphite Iron

• Autorzy: Gumienny G. , Kacprzyk B.

Identyfikatory

DOI

10.24425/118831

• Języki publikacji: EN

Abstrakty

EN

This paper shows how it is possible to obtain an ausferrite in compacted graphite iron (CGI) without heat treatment of castings. Vermicular graphite in cast iron was obtained using Inmold technology. Molybdenum was used as alloying additive at a concentration from 1.6 to 1.7% and copper at a concentration from 1 to 3%. It was shown that ausferrite could be obtained in CGI through the addition of molybdenum and copper in castings with a wall thickness of 3, 6, 12 and 24 mm. Thereby the expensive heat treatment of castings was eliminated. The investigation focuses on the influence of copper on the crystallization temperature of the graphite eutectic mixture in cast iron with the compacted graphite. It has been shown that copper increases the eutectic crystallization temperature in CGI. It presents how this element influences ausferrite microhardness as well as the hardness of the tested iron alloy. It has been shown that above-mentioned properties increases with increasing the copper concentration.

Słowa kluczowe

EN

theory of crystallization; compacted graphite iron; ausferrite; DTA method

PL

teoria krystalizacji; stop żelaza; ausferryt; metoda DTA

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 1
• Strony: 162--166
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Gumienny G.

• Lodz University of Technology, Department of Materials Engineering and Production Systems, Poland

autor

Kacprzyk B.

• Lodz University of Technology, Department of Materials Engineering and Production Systems, Poland

Bibliografia

• [1] Guzik, E. & Kleingartner, T. (2009). A study on the structure and mechanical properties of vermicular cast iron with pearlitic-ferritic matrix. Archives of Foundry Engineering. 9(3), 55-60.
• [2] Popov, P.I. & Sizov, I.G. (2006). Effect of Alloying Elements on the Structure and Properties of Iron with Vermicular Graphite. Metal Science and Heat Treatment. 48(5-6), 272- 275.
• [3] Zhou, G. & Liu, W. (2008). Production technique of vermicular graphite iron cylinder head of vehicle diesel engine. China Foundry. Special Review. 5(3), 153-161.
• [4] Choong-Hwan, L. & Byeong-Choon, G. (2011). Development of compacted vermicular graphite cast iron for railway brake discs. Metals and Materials International. 17(2), 199-205. DOI: 10.1007/s12540-011-0403-x.
• [5] Soiński, M.S. & Jakubus, A. (2014). Initial Assessment of Abrasive Wear Resistance of Austempered Cast Iron with Vermicular Graphite. Archives of Metallurgy and Materials. 59(3), 1073-1076.
• [6] Andrsova, Z. & Volesky, L. (2012). The Potential of Isothermally Hardened Iron with Vermicular Graphite. COMAT 2012. 21.-22. 11. 2012. Plzeň, Czech Republic, EU. Retrieved May, 25. 2015 from http://www.comat.cz/files/-proceedings/11/reports/1060.pdf.
• [7] Pytel, A. & Gazda, A. (2014). Evaluation of Selected Properties in Austempered Vermicular Cast Iron (AVCI). Transactions of Foundry Research Institute. LIV(4), 23-31. DOI: 10.7356/iod.2014.18.
• [8] García-Hinojosa, J.A., Amaro A.M., Márquez, V.J. & Ramírez-Argaez, M.A. (2007). Manufacturing of Carbide Austempered Vermicular Iron. METAL 2007. 22.-24.5.2007 Hradec nad Moravicí. Retrieved April, 10. 2017 from http://konference.tanger.cz/data/metal2007/sbornik/Lists/Papers/120.pdf.
• [9] Mierzwa, P. & Soiński, M.S. (2010). The effect of thermal treatment on the mechanical properties of vermicular cast iron. Archives of Foundry Engineering. 10(1), 99-102.
• [10] Ramadan, M., Nofal, A.A., Elmahalawi, I. & Abdel-Karim, R. (2006). Comparison of austempering transformation in spheroidal graphite and compacted graphite cast irons. International Journal of Cast Metals Research. 19(3), 151-155.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018)