Calorimetric and acoustic emission study of the premartensitic and martensitic transitions in Ni-Mn-Ga

F J  Perez-Reche; E  Vives; L  Manosa; A  Planes

doi:10.1016/j.msea.2003.10.360

Calorimetric and acoustic emission study of the premartensitic and martensitic transitions in Ni-Mn-Ga

F J Perez-Reche, E Vives, L Manosa, A Planes

Physics

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12 Citations (Scopus)

Abstract

A study of martensitic and premartensitic transitions in a Ni-Mn-Ga alloy with near stoichiometric composition is reported. We present results from acoustic emission detected during both transitions. Results are complemented with calorimetric and magnetic susceptibility measurements. The effect of thermal fluctuations in both transitions has also been examined. Results suggest that the premartensitic transition has an athermal character whereas the martensitic transition exhibits thermally activated effects. Results for the amplitude distribution of acoustic emission pulses have been obtained for both transitions. No significant differences were found between the exponents corresponding to each transition. (C) 2004 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	353-356
Number of pages	4
Journal	Materials Science and Engineering A
Volume	378
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2003.10.360
Publication status	Published - 25 Jul 2004

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title = "Calorimetric and acoustic emission study of the premartensitic and martensitic transitions in Ni-Mn-Ga",

abstract = "A study of martensitic and premartensitic transitions in a Ni-Mn-Ga alloy with near stoichiometric composition is reported. We present results from acoustic emission detected during both transitions. Results are complemented with calorimetric and magnetic susceptibility measurements. The effect of thermal fluctuations in both transitions has also been examined. Results suggest that the premartensitic transition has an athermal character whereas the martensitic transition exhibits thermally activated effects. Results for the amplitude distribution of acoustic emission pulses have been obtained for both transitions. No significant differences were found between the exponents corresponding to each transition. (C) 2004 Elsevier B.V. All rights reserved.",

author = "Perez-Reche, {F J} and E Vives and L Manosa and A Planes",

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TY - JOUR

T1 - Calorimetric and acoustic emission study of the premartensitic and martensitic transitions in Ni-Mn-Ga

AU - Perez-Reche, F J

AU - Vives, E

AU - Manosa, L

AU - Planes, A

PY - 2004/7/25

Y1 - 2004/7/25

N2 - A study of martensitic and premartensitic transitions in a Ni-Mn-Ga alloy with near stoichiometric composition is reported. We present results from acoustic emission detected during both transitions. Results are complemented with calorimetric and magnetic susceptibility measurements. The effect of thermal fluctuations in both transitions has also been examined. Results suggest that the premartensitic transition has an athermal character whereas the martensitic transition exhibits thermally activated effects. Results for the amplitude distribution of acoustic emission pulses have been obtained for both transitions. No significant differences were found between the exponents corresponding to each transition. (C) 2004 Elsevier B.V. All rights reserved.

AB - A study of martensitic and premartensitic transitions in a Ni-Mn-Ga alloy with near stoichiometric composition is reported. We present results from acoustic emission detected during both transitions. Results are complemented with calorimetric and magnetic susceptibility measurements. The effect of thermal fluctuations in both transitions has also been examined. Results suggest that the premartensitic transition has an athermal character whereas the martensitic transition exhibits thermally activated effects. Results for the amplitude distribution of acoustic emission pulses have been obtained for both transitions. No significant differences were found between the exponents corresponding to each transition. (C) 2004 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.msea.2003.10.360

DO - 10.1016/j.msea.2003.10.360

M3 - Article

SN - 0921-5093

VL - 378

SP - 353

EP - 356

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

IS - 1-2

ER -

Calorimetric and acoustic emission study of the premartensitic and martensitic transitions in Ni-Mn-Ga

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