Julieta Kaleicheva, Valentin Mishev, Manahil Tongov


The work in this study is focused on investigation of the tribological behavior of ductile cast iron with nanosized particles: titanium nitride TiN; titanium nitride 30% + titanium carbonitride 70% (30%TiN+70%TiCN). The ductile cast iron composition is: Fe-3,55C-2,67Si-0,31Mn-0,009S-0,027P-0,040Cu-0,025Cr-0,08Ni-0,06Mg wt%. Before the addition to the melt nanosized particles were coated with nickel by the electroless nickel deposition method EFFTOMNICKEL .The nickel coating on the nanosized particles ensures their wetting in the melt as well as their uniform distribution into the cast. The optical and quantity metallographic observations and wear test are performed to study the influence of the nanoparticle additives on the cast iron tribological properties. It is observed that the quantity proportion changes between pearlite, ferrite and graphite phase in the cast iron structure. The graphite shape is retained the same, but the nanosized additives decrease the average diameter of the graphite spheres Dmid and increase the quantity of the graphite phase in the structure of ductile cast irons. The cast iron wear resistance in the presence of nanosized additives of (TiN+TiCN) and TiN increases to 55–69% in comparison to wear resistance of the cast iron without nanoparticles.


nanosized particles; microstructure; hardness; wear resistance; ductile cast iron

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A.S.M.A. Haseeb, Md.A. Islam and Md.M.A. Bepari, “Tribological behavior of quenched and tempered, and austempered ductile iron at the same hardness level”, Wear, 244, pp.15–19, 2000.

Y. Sahin, M. Erdogan and V. Kilicli, “Wear behavior of austempered ductile irons with dual matrix structures”, Mater. Sci. Eng., A 444, pp. 31–38, 2007.

F. Iacoviello and O. DiBartolomeo, “Damaging micromechanisms in ferritic-pearlitic ductile cast irons”, Mater. Sci. Eng., A 478, pp. 181–186, 2008.

C. Fragassa, N. Radovic, A. Pavlovic and G. Minak, “Comparison of Mechanical Properties in Compacted and Spheroidal Graphite Irons”, Tribology in Industry, Vol. 38, No 1, pp. 45-56, 2016.

W. Xu, M. Ferry and Y. Wang, “Influence of alloying elements on as cast microstructure and strength of gray iron”, Mater. Sci. Eng., A 390, pp. 326–333, 2005.

K. Hirasata, K. Hayashi and Y. Inamoto, “Friction and wear of several kinds of cast irons under severe sliding conditions”, Wear, 263, pp. 790–800, 2007.

Y. Wang, Z. Pan, Z. Wang, X. Sun and L. Wang, “Sliding wear behavior of Cr–Mo–Cu alloy cast irons with and without nanoadditives”, Wear 271, pp. 2953– 2962, 2011.

J. Li, M. Chen, H. Gao and Y. Zhao, “Structures and Properties of Cast Irons Reinforced by Trace Addition of Modified SiC Nanopowders”,Chinese Journal of Chemical Physics, Vol.20, No 6, pp. 625-631, 2007.

J. Kaleicheva, “Wear Behavior of Austempered Ductile Iron with Nanosized Additives”, Tribology in Industry, Vol. 36, No 1, pp. 74-78, 2014.

J. Kaleicheva, V. Mishev, G. Avdeev, Z. Karaguiozova and B. Dineva, Influence of Nanoadditives on the Structure and Properties of Austempered Ductile Irons, in Proceedings of the European Conference on Heat Treatment and 21st FHTSE Congress, 12-15 May, 2014, Munich, Germany, pp. 537-543, 2014.

J. Kaleicheva, V. Mishev, Z. Karaguiozova, G. Nikolcheva and A. Miteva. “Effect of nanoadditives on the wear behavior of spheroidal graphite cast irons”, Tribology in Industry, Vol. 39, No 3, pp. 294-301, 2017, doi: 10.24874/ti.2017.39.03.03

J. Kaleicheva and V. Mishev, Wear Resistance of Austempered Ductile Iron with Nanosized Additives, in 9th International Conference on Tribology Balkantrib’17, IOP Conf. Series: Mater. Sci. Eng. 295, Article number 012034, 2018 doi:10.1088/1757-899X/295/1/012034

G. Gavrilov G. and C. Nicolov, Electroless Nickel and Composite Coatings, Sofia: Tehnika, 1985.



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