ISSN:
1572-8943
Keywords:
atomic order
;
martensitic transformation
;
modeling
;
shape memory
;
simulation
;
time behaviour
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Analysis of the experimental results on Cu-Zn-Al shape memory alloys indicates that the transformation temperatures (for instance, Ms) fluctuate in long-term records. Continuous measurements of electrical resistance R (five significant figures) are made with controlled and programmed temperature (resolution 0.005 K). The experimental analysis suggests a partitioning of resistance into two additive contributions: phonon and order (or R*). The time behaviour of R* represents the dependence of Ms time. The results indicate that the effects of time and temperature in the austenite phase can be represented by two independent differential equations: the long-time fluctuations in the transformation temperature are predictable and the uncertainty reduces to ±0.15 K.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1010162523436
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