MECHANICAL PROPERTIES AND CORROSION RESISTANCE OF CAST NiAl ALLOYS WITH THE ADDITION OF Ti

Authors

  • Paweł Hyjek Institute of Technology, Pedagogical University of Krakow
  • Iwona Sulima
  • Piotr Malczewski

DOI:

https://doi.org/10.7494/mafe.2015.41.1.29

Keywords:

NiAl alloys, compression, corrosion resistance

Abstract

Results of compression and corrosion resistance tests of NiAl alloys with 1.0 and 2.0 wt.% of titanium are described. The compression tests conducted in a wide range of temperature and strain rate showed that increase of titanium content causes increase of brittleness at room temperature, while at higher temperatures an increase of hardness and strength is observed. The analysis of electrochemical corrosion resistance showed that the alloys containing Ti are characterized by considerable resistance to sulfuric acid VI, because the emerging titanium oxide prevents active solubilizing of the alloy. Besides, microstructure observations performed at various levels of deformation which allowed to identify mechanisms responsible for fracture of the studied alloys.

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Published

2015-07-10

How to Cite

Hyjek, P., Sulima, I., & Malczewski, P. (2015). MECHANICAL PROPERTIES AND CORROSION RESISTANCE OF CAST NiAl ALLOYS WITH THE ADDITION OF Ti. Metallurgy and Foundry Engineering, 41(1), 29. https://doi.org/10.7494/mafe.2015.41.1.29

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