TY - JOUR ID - 14459 TI - Martensite Deformation And Phenomenon Of Hysteretic Shape Change In TiNi-based Alloys JO - Advanced Materials Letters JA - AML LA - en SN - 0976-3961 AU - E. Gunther, Victor AU - L. Chekalkin, Timofey AU - Kim, Ji-Soon AU - N. Hodorenko, Valentina AD - Y1 - 2014 PY - 2014 VL - 5 IS - 11 SP - 629 EP - 633 KW - Martesite deformation KW - martensite transition KW - shape memory effect KW - superelasticity KW - ferroelasticity KW - TiNi KW - based alloy DO - 10.5185/amlett.2014.05574 N2 - The brief overview of published articles on Nitinol studies reflects, in fact, a little misunderstanding of a thermodynamic importance since there is no whole concept or paradigm considering the martensite transition and related effects in terms of thermodynamic arguments. TiNi-based alloys are basically functional materials. They’re more important for what they do than for what they are. In order to make it easier to understand complicated behavior of TiNi-based alloys under general and special conditions, a new approach is introduced. This work was aimed at studying the hysteretic behavior of TiNi-based alloys. Mechanism of hysteretic phenomenon in TiNi-based alloys showing shape memory effect, superelasticity and ferroelasticity has been considered. Hysteretic behavior in repeatable shape memory effect was thermodynamically analyzed with the aid of Helmholtz potential formalism. Correlation of deformation, temperature and latent heat of phase transition under the constant load was established. Maximum hysteresis width achieves when the product ??? during phase transition tends to ?H, and when the product ??? tends to zero the value of ?T approximates the difference (As – Mf) or (Af – Ms). UR - https://aml.iaamonline.org/article_14459.html L1 - https://aml.iaamonline.org/article_14459_b4221f4bce46595f7b6b8fdfd7ce056f.pdf ER -