AC calorimetric study of the thermoelastic martensitic transformation in Cu–Al–Ni alloys

We present an accurate study by AC calorimetry on the thermoelastic martensitic transformation in Cu–Al–Ni shape memory alloys, both under quasi-isothermal conditions and by using a dynamic method. The AC calorimetry results suggest that the martensitic transformation exhibits some kinetic effects s...

Full description

Saved in:
Bibliographic Details
Published in:Scripta materialia 2006-03, Vol.54 (6), p.1199-1203
Main Authors: Fraile-Rodríguez, A., Ruiz-Larrea, I., López-Echarri, A., San Juan, J.
Format: Article
Language:English
Subjects:
AC calorimetry
Alloys
CALORIMETRY
COPPER ALLOYS (40 TO 99.3 CU)
COPPER ALUMINUM ALLOYS
Copper base alloys
Differential scanning calorimetry
Dynamic tests
Dynamics
INTERNAL FRICTION
Martensitic phase transformation
MARTENSITIC TRANSFORMATIONS
PHASE TRANSFORMATIONS
Shape memory alloys (SMA)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present an accurate study by AC calorimetry on the thermoelastic martensitic transformation in Cu–Al–Ni shape memory alloys, both under quasi-isothermal conditions and by using a dynamic method. The AC calorimetry results suggest that the martensitic transformation exhibits some kinetic effects strongly dependent on the temperature rate, in agreement with internal friction results. Calorimetric results obtained by DSC do not exhibit this behaviour, but dynamic measurements obtained under oscillating fields show a net dependence on the temperature rate.
ISSN:1359-6462
0956-716X
1872-8456
DOI:10.1016/j.scriptamat.2005.11.025