Scaling behaviours in the thermoelastic martensitic transformation of Co

By performing the DSC measurements at different temperature scanning rates, the latent heat and the peak temperature are determined in the structural phase transformation of Co. It is found that the latent heat during the transformation increases with the increasing scanning rate, and complies with a general power law. The peak temperature does not follow the Kissinger relation, and can also be described by a scaling law. Our experimental observation gives a straight evidence for the influence of frictional work and stored elastic energy to the thermoelastic martensitic transformation. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.