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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
The pseudoelasticity and the shape memory effect in CoNiAl alloys
 Kopeček, Jaromír ; Jarošová, Markéta ; Jurek, Karel ; Heczko, Oleg
The cobalt alloys (close to the CoNiAl stoichiometry) are the less known shape memory alloys. Such behavior is consequence of the martensitic transformation. The pseudoelasticity is caused by the stress-induced martensitic transformation above the equilibrium martensite start temperature from high temperature cubic phase (austenite) to lower symmetry phase(martensite). In CoNiAl the pseudoelastic behavior can be obtained by the high temperature annealing. In presented work the effect of the annealing temperature on both pseudoelastic behavior and microstructure was investigated.
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Cobalt-based ferromagnetic shape memory alloys - preparation, characterization and funtional properties
 Kopeček, Jaromír ; Jarošová, Markéta ; Jurek, Karel ; Drahokoupil, Jan ; Majtás, Dušan ; Sedláková, Silvia ; Heczko, Oleg
The cobalt-based shape memory alloys (SMA) are expected to be the new kind of socalled ferromagnetic SMAs. The presented abstract describes the progress on the structural study.
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