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Archives of Foundry Engineering

The Journal of Polish Academy of Sciences

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CiteScore 2016: 0.42

SCImago Journal Rank (SJR) 2016: 0.192
Source Normalized Impact per Paper (SNIP) 2016: 0.316

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2299-2944
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Hardness and Wear Resistance of TiC-Fe-Cr Locally Reinforcement Produced in Cast Steel

E. Olejnik
  • Corresponding author
  • INNERCO Ltd., Zarzecze 42, 30-134 Cracow, Poland
  • AGH University of Science and Technology, Department of Engineering of Cast Alloys and Composites, Faculty of Foundry Engineering, Reymonta 23, 30-059 Cracow, Poland
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/ Ł. Szymański
  • AGH University of Science and Technology, Department of Engineering of Cast Alloys and Composites, Faculty of Foundry Engineering, Reymonta 23, 30-059 Cracow, Poland
  • AGH University of Science and Technology, Department of Foundry Processes Engineering, Faculty of Foundry Engineering, Reymonta 23, 30-059 Cracow, Poland
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/ P. Kurtyka
  • Pedagogical Univeristy of Cracow, Institute of Technology, Faculty of Mathematics, Physics and Technical Science, Podchorazych 2, 30-084 Cracow, Poland
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/ T. Tokarski
  • AGH University of Science and Technology, Academic Centre of Materials and Nanotechnology, al. Mickiewicza 30, 30-059 Cracow, Poland
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/ B. Grabowska
  • AGH University of Science and Technology, Department of Foundry Processes Engineering, Faculty of Foundry Engineering, Reymonta 23, 30-059 Cracow, Poland
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/ P. Czapla
  • AGH University of Science and Technology, Department of Foundry Processes Engineering, Faculty of Foundry Engineering, Reymonta 23, 30-059 Cracow, Poland
  • EUROCAST INDUSTRIES Ltd., Grabowa 21/7, 30-227 Cracow, Poland
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Published Online: 2016-06-18 | DOI: https://doi.org/10.1515/afe-2016-0032

Abstract

In order to increase wear resistance cast steel casting the TiC-Fe-Cr type composite zones were fabricated. These zones were obtained by means of in situ synthesis of substrates of the reaction TiC with a moderator of a chemical composition of white cast iron with nickel of the Ni-Hard type 4. The synthesis was carried out directly in the mould cavity. The moderator was applied to control the reactive infiltration occurring during the TiC synthesis. The microstructure of composite zones was investigated by electron scanning microscopy, using the backscattered electron mode. The structure of composite zones was verified by the X-ray diffraction method. The hardness of composite zones, cast steel base alloy and the reference samples such as white chromium cast iron with 14 % Cr and 20 % Cr, manganese cast steel 18 % Mn was measured by Vickers test. The wear resistance of the composite zone and the reference samples examined by ball-on-disc wear test. Dimensionally stable composite zones were obtained containing submicron sizes TiC particles uniformly distributed in the matrix. The macro and microstructure of the composite zone ensured three times hardness increase in comparison to the cast steel base alloy and one and a half times increase in comparison to the white chromium cast iron 20 % Cr. Finally ball-on-disc wear rate of the composite zone was five times lower than chromium white cast iron containing 20 % Cr.

Keywords: MMCs; Locally reinforcement; In situ TiC; Castings; Hardness; Wear resistance; Ball-on-disc

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About the article

Received: 2016-04-12

Accepted: 2016-04-22

Published Online: 2016-06-18

Published in Print: 2016-06-01


Citation Information: Archives of Foundry Engineering, Volume 16, Issue 2, Pages 89–94, ISSN (Online) 2299-2944, DOI: https://doi.org/10.1515/afe-2016-0032.

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© 2016 E. Olejnik et al., published by De Gruyter Open. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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