Changes of thermal hysteresis during homogenisation process of Ni-Mn-Ga polycrystalline alloy

Teodor Breczko; Miroslaw Bramowicz

doi:10.1117/12.726770

10 April 2007 Changes of thermal hysteresis during homogenisation process of Ni-Mn-Ga polycrystalline alloy

Teodor Breczko, Miroslaw Bramowicz

Proceedings Volume 6597, Nanodesign, Technology, and Computer Simulations; 659713 (2007) https://doi.org/10.1117/12.726770
Event: Nanodesign, Technology, and Computer Simulations, 2006, Olsztyn, Poland

Abstract

In this paper we present results of the investigation of polycrystalline Ni_52,2Mn_21,3Ga_26,5 alloy before and after homogenisation at 1173K processed for different time intervals. We investigated the influence of duration of homogenisation on kinetics of reversible martensitic transformation (RMT). In order to present changes of kinetics of RMT, thermal hysteresis was determined based on calorimetric (DSC) investigation. Our results suggested that thermal annealing at 1173K caused plastic deformation of crystal lattice in the investigated alloy.

Citation Download Citation

Teodor Breczko and Miroslaw Bramowicz "Changes of thermal hysteresis during homogenisation process of Ni-Mn-Ga polycrystalline alloy", Proc. SPIE 6597, Nanodesign, Technology, and Computer Simulations, 659713 (10 April 2007); https://doi.org/10.1117/12.726770

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