ANELASTIC CONTRIBUTIONS AND TRANSFORMED VOLUME FRACTION DURING THERMOELASTIC MARTENSITIC TRANSFORMATIONS

摘要: The internal-friction spectra of a thermoelastic martensitic transformation are usually obtained as function temperature with $\mathrm{T\ifmmode \dot{}\else \.{}\fi{}}\ensuremath{\ne}0$ and show three---phase transition, transitory, intrinsic---contributions. This paper proposes systematic method to analyze these spectra. Indeed, two different procedures derived. first one, the support an isothermal spectrum $(\mathrm{T\ifmmode \.{}\fi{}}=0),$ allows one decompose into its three contributions in addition calculate volume fraction transformed material. second is based on iterative process, separate intrinsic term from other directly related transformation, material, without aid measurement. successfully applied Cu-Al-Ni shape-memory alloy. Then, dependence phase transition material found. us reject models proposed explain this that do not take account dependence.