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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