| Microstructure and mechanical properties of NiAlV alloys of the composition belonging to the pseudo-binary Ni3Al-Ni3V cross-section were investigated. The samples were prepared by the cold crucible levitation melting and by re-melting and crystallizing in the small volume copper mould. The phase composition of the samples, which should result from the eutectoidal decomposition was not found. Instead the Ni3(Al,V) and Ni(Al,V) solid solution or seldom disordered solid solution were retained due to the relatively high cooling rates. In the samples after subsequent high pressure torsion fine lamellar structure was revealed. The lattice parameter in the samples after high pressure torsion was larger than in the samples after rapid quenching. |
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