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J. Phys. IV France
Volume 05, Number C2, Février 1995
IIIrd European Symposium on Martensitic Transformations
Page(s) C2-361 - C2-365
IIIrd European Symposium on Martensitic Transformations

J. Phys. IV France 05 (1995) C2-361-C2-365

DOI: 10.1051/jp4:1995255

A New Cu-Based SMA with Extremely High Martensitic Transformation Temperatures

J.M. Guilemany1, J. Fernández1, R. Franch1, A.V. Benedetti2 and A.T. Adorno2

1  Metalurgia Física-Cienca dels Materials, Dept. d'Enginyeria Química i Metalurgia, Facultat de Química, Marti i Franquès, 1. E-08028 Barcelona, Spain
2  Universidade Estadual Paulista, Institute de Química, Rua Prof. Francisco Degni. Bairro, Quitandinha, 14800 Araraquara, Brasil

A new series of high temperature copper based shape memory alloys has recently been patented. These alloys contain 8-20 wt% Al, 1-20 wt% Ag, 0-2 wt% of a minor element (preferably Co), balance copper. The martensitic start transformation temperatures of these alloys are above 200°C and, in some cases, they have good high temperature stability and may be useful in commercial applications where higher operating temperatures than those obtained from Cu-Zn-Al and Cu-Al-Ni shape memory alloys are required.

© EDP Sciences 1995