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The Electrical Resistance Properties of Shape Memory Alloys

Published online by Cambridge University Press:  10 February 2011

G. Airoldi ,
M. Pozzi  and
G. Riva
G. Airoldi
Affiliation:
Dipartimento di Fisica, Università di Milano, Via Celoria 16, 20133 Milano, I, [email protected]
M. Pozzi
Affiliation:
Dipartimento di Fisica, Università di Milano, Via Celoria 16, 20133 Milano, I, [email protected]
G. Riva
Affiliation:
Pirelli Coordinamento Pneumatici, Viale Sarca 222, 20126 Milano, I
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Abstract

Shape memory alloys are known for their ability to build up large deformations under an applied stress, either in martensitic phase or in the pseudoelastic region.

The electrical resistance of shape memory alloys, traditionally used to define the transformation temperatures, shows interesting features when considering its modification as a function of strain. The electrical resistance in NiTiCu ribbons, obtained by melt spinning, is here examined, either in martensite or in the pseudoelastic range or under a constant applied stress across the transformation range. In each examined case, the results obtained show that the electrical resistance follows a linear relationship as a function of the imprinted strain.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 459: Symposium Y – Materials for Smart Systems II , 1996 , 459
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

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