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Advances in Materials Science and Engineering
Volume 2014, Article ID 465947, 5 pages
http://dx.doi.org/10.1155/2014/465947
Research Article

The Effect of Nb Supplement on Material Characteristics of Iron with Lamellar Graphite

Hema Endüstri A.S. Organized Industrial Zone, Çerkezköy, 59501 Tekirdağ, Turkey

Received 2 May 2013; Accepted 3 December 2013; Published 22 January 2014

Academic Editor: Steve Bull

Copyright © 2014 Ahmet Oktay Devecili and Rifat Yakut. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this experiment a cast iron alloy consisting of 0.019, 0.151, 0.431, and 0.646% niobium by weight was set and the microstructure solidification of iron with lamellar graphite was provided. These alloys were subjected to an abrasion test and chemical analyses of the microstructure were done by using scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDS). In addition to this, phase compositions were characterised by X-ray diffraction (XRD). Tests of mechanical strength, hardness, and tension were also applied to the alloys. The results of this experiment demonstrated that the addition of niobium to iron with lamellar graphite caused an increase in the abrasion resistance by 15%. This experiment shows that adding niobium improves the mechanical properties of grey cast iron.