STRUCTURE AND MECHANICAL PROPERTIES OF SPHEROIDAL GRAPHITE CAST IRON WITH NANOSIZED ADDITIVES

Authors

  • Julieta Kaleicheva Technical University of Sofia (BG)
  • Valentin Mishev Technical University of Sofia (BG)
  • Zdravka Karaguiozova Space Research and Technology Institute, Bulgarian Academy of Sciences (BG)
  • Galina Nikolcheva Technical University of Sofia (BG)

DOI:

https://doi.org/10.17770/etr2017vol3.2605

Keywords:

spheroidal graphite iron, asutemepering, titanium nitride, titanium carbonitride, cubic boron nitride, wear resistance, hardness, structure, bainite, austenite

Abstract

The microstructure and properties of spheroidal graphite cast irons and austempered ductile irons with nanosized additives of titanium carbonitride and titanium nitride (TiCN+TiN), titanium nitride TiN and cubic boron nitride cBN are investigated. The microstructure of the patterns is observed by optical metallography, quantity metallographic analysis, X-Ray analysis, SEM analysis and EDX analysis. Hardness measurement, impact strength and abrasion wear test on fixed abrasive are performed. The influence of the nanosized additives on the microstructure, mechanical and tribological properties of the cast irons are examined.

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References

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Published

2017-06-15

Issue

Vol. 3 (2017): Environment. Technology. Resources. Proceedings of the 11th International Scientific and Practical Conference. Volume 3

Section

Engineering Sciences and Production Technologies

How to Cite

[1]
J. Kaleicheva, V. Mishev, Z. Karaguiozova, and G. Nikolcheva, “STRUCTURE AND MECHANICAL PROPERTIES OF SPHEROIDAL GRAPHITE CAST IRON WITH NANOSIZED ADDITIVES”, ETR, vol. 3, pp. 122–128, Jun. 2017, doi: 10.17770/etr2017vol3.2605.