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Journal of Materials Science

, Volume 45, Issue 3, pp 842–849 | Cite as

Effect of silicon content on the microstructure and properties of Fe–Cr–C hardfacing alloys

  • G. Azimi
  • M. ShamanianEmail author
Article

Abstract

In this study, the surface of St52 steel was alloyed with preplaced powders 55Fe39Cr6C, 49Fe39Cr6C6Si, and 45Fe39Cr6C10Si using a tungsten-inert gas as the heat source. Following surface alloying, conventional characterization techniques, such as optical microscopy, scanning electron microscopy, and X-ray diffraction were employed to study the microstructure of the alloyed surface. Microhardness measurements were performed across the alloyed zone. Room-temperature dry sliding wear tests were used to compare the coatings in terms of their tribological behavior. It was found that the as-deposited coatings contained higher volume fractions of carbides (Cr7C3). The presence of 6%Si in the preplaced powders caused an increase in microhardness and wear resistance.

Keywords

Austenite Wear Track M7C3 Carbide Fe3Si Primary Carbide 

Notes

Acknowledgement

The authors wish to thank Isfahan University of Technology (Iran) for their financial support through Grant No. 1MSA851.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Educational Workshop Center, Isfahan University of Technology (IUT)IsfahanIran
  2. 2.Department of Materials EngineeringIsfahan University of Technology (IUT)IsfahanIran

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