Abstract
We study the influence of silicon (1.0–2.5%), copper (0.5–1.5%), and aluminum (0.05–0.25%) on the structure of the matrix and graphitic phase of annealed graphitic steels (GS) containing 1.6% of carbon. We have established that, for such GS, one can achieve simultaneous enhancement of strength, plasticity, and cyclic crack resistance, which are optimal for steel of the following chemical composition (in mass %): C–1.6, Si–1.0, Cu–0.5, and Al–0.25. We also have discovered some microfractographic features of the fatigue fracture of graphitic inclusions in GS, differing from those in high-strength cast irons.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
R. P. Todorov and M. V. Nikolov, Structure and Properties of Castings of Graphitic Steel [in Russian], Metallurgiya, Moscow (1976).
O. P. Ostash, I. P. Volchok, O. B. Kolotilkin, et el., Structure and Resistance to Breaking of Iron-Carbon Alloys [in Ukrainian], Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, Lviv (2001).
V. M. Zhurakovskii and V. Ya. Sadchikov, “Influence of rare-earth metals on the structure formation of cast graphitic steel,” Izv. Vyssh. Uchebn. Zaved., Chernaya Metall., No. 3, 114–116 (1979).
V. M. Zhurakovskii, V. Ya. Sadchikov, B. V. Samelik, and A. G. Melakh, “Influence of boron and calcium on the graphitization of supereutectoid silicon steel,” Izv. Vyssh. Uchebn. Zaved., Chernaya Metall., No. 4, 119–121 (1981).
V. V. Panasyuk (editor), Fracture Mechanics and Strength of Materials: Handbook, Vol. 4: O. N. Romaniv, S. Ya. Yarema, G. N. Nikiforchin, et al., Fatigue and Cyclic Crack Resistance of Structural Materials [in Russian], Naukova Dumka, Kiev (1990).
É. V. Zakharchenko, Yu. N. Shevchenko, V. G. Gorenko, and P. A. Varenik, Iron Castings with Spheroidal and Vermicular Graphite [in Russian], Naukova Dumka, Kiev (1986).
V. M. Zhurakovskii, V. Ya. Sadchikov, N. N. Matveev, and G. A. Popkov, “A simplified technology of manufacturing castings of graphitic steel,” Liteinoe Proizv., No. 1, 36 (1978).
O. P. Ostash, E. M. Kostyk, I. M. Andreiko, and M. M. Dronyuk, “Effect of the microstructure on the low-temperature cyclic crack resistance of high-strength cast irons,” Fiz.-Khim. Mekh. Mater., 33, No. 1, 57–69 (1997).
O. P. Ostash, E. M. Kostyk, and I. M. Andreiko, “Effect of the microstructural inhomogeneity on the mechanics of fatigue fracture of cast irons with spheroidal graphite,” Fiz.-Khim. Mekh. Mater., 33, No. 3, 57–64 (1997).
Rights and permissions
About this article
Cite this article
Ostash, O.P., Andreiko, I.M., Volchok, I.P. et al. Enhancement of the Cyclic Crack Resistance of Graphitic Steels. Materials Science 38, 765–772 (2002). https://doi.org/10.1023/A:1024243314057
Issue Date:
DOI: https://doi.org/10.1023/A:1024243314057