Characteristics of flake graphite in Ni-Mn-Cu cast iron. Part 2.

• Autorzy: Janus A.
• Języki publikacji: EN

Abstrakty

EN

The paper continues the article published by Archives of Foundry Engineering, vol. 9, issue 1/2009, pp. 185-190, that presented influence of chemical composition of hypo- and hypereutectic nickel-manganese-copper alloyed cast iron on properties of the contained flake graphite. In this second part of the research, effect of chemical composition of hypereutectic cast iron containing 3.5 to 5.1% C, 1.7 to 2.8% Si, 3.5 to 10.5 % Ni, 2.0 to 8.0% Mn, 0.1 to 3.5% Cu, 0.14 to 0.17% P and 0.02 to 0.04% S on properties of flake graphite is determined. Evolution of graphite properties with changing eutecticity degree of the examined cast iron is presented. For selected castings, histograms of primary and eutectic graphite are presented, showing quantities of graphite precipitates in individual size ranges and their shape determined by the coefficient [zeta] defined as ratio of a precipitate area to square of its circumference. Moreover, presented are equations obtained by discriminant analysis to determine chemical composition of Ni-Mn-Cu cast iron which guarantee the most favourable distribution of A-type graphite from the point of view of castings properties.

Słowa kluczowe

EN

flake graphite; austenitic cast iron; Ni-Mn-Cu cast iron

PL

grafit płatkowy; żeliwo austenityczne; żeliwo Ni-Mn-Cu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 1
• Strony: 75--78
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Janus A.

• Department of Foundry and Automation, Institute of Mechanical Engineering and Automation, Wrocław University of Technology, ul. Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Polska,

Bibliografia

• [1] J. V. Giacchi, R.A. Martínez, M.R. Gamba, R.C. Dommarco, Abrasion and impact properties of partially chilled gray iron, Wear, vol. 262, issue: 3-4, 2007, 282-291.
• [2] X.J. Sun, Y.X. Li, X. Chen, Identification and evaluation of modification level for compacted graphite cast iron, Journal of Materials Processing Tech., vol. 200, issue: 1-3, 2008, 471-480.
• [3] E. Fraś, M. Górny, W. Kapturkiewicz, H. López, Chilling Tendency and Chill of Cast Iron, Tsinghua Science & Technology, vol: 13, issue: 2, 2008, 177-183.
• [4] B. Ceccarelli, R. Dommarco, R. Martinez, M. Gamba, M., Abrasion and impact properties of partially chilled ductile iron, Wear 2004 pp. 49-55.
• [5] R. Dommarco, M. Sousa, J. Sikora, Abrasion resistance of high nodule count ductile iron with different matrix microstructures, Wear 2004 pp. 1185-1192.
• [6] M. H. Cho, S.J. Kim, R. H. Basch, J. W. Fash, H. Jang, Tribological study of gray cast iron with automotive brake linings: The effect of rotor microstructure, Unsubscribed Journal Tribology International, vol. 36, issue: 7, 2003, 537-545.
• [7] Y. Zhang, Y. Chen, R. He, B. Shen, Investigation of tribological properties of brake shoe materials-phosphorous cast irons with different graphite morphologies, Wear 1993, pp. 179-186.
• [8] A.R. Ghaderi, M. Ahmadabadi, H.M. Ghasemi, Effect of graphite morphologies on the tribological behavior of cast iron, Wear, vol. 255, issue: 1-6, 2003, 410-416.
• [9] Y. Wang, X.Wei; Jing, M. Tianfu; S. J.Gao, Y. Xin, "Properties of a gray cast iron with oriented graphite flakes" Journal of Materials Processing Tech. 2007, 593-597.
• [10] C. Podrzucki, Cast Iron. Structure, properties, application, ZG STOP, Kraków, 1991.
• [11] E. Fraś, Crystallization of metals, WNT, W-wa 2003.
• [12] T. Warchala, M. S. Soiński, Charakterystyka wydzieleń grafitu w żeliwie modyfikowanym dodatkami bizmutu i metali ziem rzadkich, Archives of Mechanical Technology and Automatization, vol. 18, issue: specjal, 1998, 297-306.
• [13] A. Janus, K. Granat, Austenityczno-bainityczne żeliwo Ni-Mn-Cu odporne na ścieranie, Raporty Inst. Technol. Masz. Autom. PWroc. 2005 Ser. SPR nr 28.