The influence of loading on the heat of transformation in shape memory alloys
AUTOR(ES)
Da Silva, E. Paulo
FONTE
Journal of the Brazilian Society of Mechanical Sciences and Engineering
DATA DE PUBLICAÇÃO
2005-09
RESUMO
Standard caloric measurements on Shape Memory Alloys (SMAs) are usually carried out with the specimen in a state free of stress, by means of standard calorimeters. However, in its every application, the material is subjected to some load, being therefore necessary to investigate the influence of loading on the caloric behavior of SMAs, in order to take this into account when modeling their thermodynamic behavior. The present work investigates the influence of loading on the heat of transformation in SMAs. Experimental measurements were carried out on NiTi samples and a mathematical description of the observed behavior was developed. The theoretical results are in agreement with the experimental ones.
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