Bonnot, ErellRomero, RicardoIlla i Tortós, XavierMañosa, LluísPlanes Vila, AntoniVives i Santa-Eulàlia, Eduard2009-12-282009-12-2820070163-1829https://hdl.handle.net/2445/10573We report on experiments aimed at comparing the hysteretic response of a Cu-Zn-Al single crystal undergoing a martensitic transition under strain-driven and stress-driven conditions. Strain-driven experiments were performed using a conventional tensile machine while a special device was designed to perform stress-driven experiments. Significant differences in the hysteresis loops were found. The strain-driven curves show reentrant behavior yield point which is not observed in the stress-driven case. The dissipated energy in the stress-driven curves is larger than in the strain-driven ones. Results from recently proposed models qualitatively agree with experiments.5 p.application/pdfeng(c) The American Physical Society, 2007Propietats magnètiquesHistèresiTransformacions martensítiquesMagnetic propertiesHysteresisMartensitic transformationsinfo:eu-repo/semantics/article554314info:eu-repo/semantics/openAccess