Thermal effects on high-frequency magnetic-field-induced martensite reorientation in ferromagnetic shape memory alloys: An experimental and theoretical investigation

Abstract

Thermal effects on high-frequency magnetic-field-induced martensite reorientation in ferromagnetic shape memory alloys: An experimental and theoretical investigation

Applying Full-Field Measurement Techniques for the Thermomechanical Characterization of Shape Memory Alloys: A Review and Classification

“…It shows that there is a wide range of specimen geometries and types of tests discussed in the literature for which full-field measurement systems have been used. NiMnGa [171,176,191,202,206,235,263,264] NiMnTi [139] NiCoMnTi [139,147] NiMnInCu [130] NiMnSn [138] […”

Coexistence of five domains at single propagating interface in single-crystal Ni Mn Ga shape memory alloy

“…The superelasticity/pseudoelasticity and shape memory effect of shape memory alloys (SMAs) result from a 1 st -order solid-solid phase transformation (martensitic transformation) that can be induced by thermal, mechanical, and magnetic loadings (Kiefer and Lagoudas, 2005;Arndt et al, 2006;Karaca et al, 2006;Sehitoglu et al, 2012;Chen et al, 2014;Haldar et al, 2014;Kamarád et al, 2014;Pascan et al, 2015;Cisse et al, 2016;Heczko et al, 2016;Rogovoy and Stolbova, 2016;Yin et al, 2016;Bruno et al, 2017;Zhang et al, 2018b;Chen and He, 2020;Zhang et al, 2020). The high-temperature stable parent phase (austenite) has cubic symmetry whereas the lowtemperature stable product phase (martensite) has lower symmetry, such as tetragonal, orthorhombic, and monoclinic symmetry, depending on the chemical composition.…”

Thermo-magnetic loading effects on high-frequency dynamic behaviour of magnetic shape memory alloys

“…Techapiesancharoenkil et al (2009, 2011 experimentally demonstrated the relationship between magnetic field and output strain in dynamic Ni-Mn-Ga actuators. Recent experiments in (Zhang et al, 2018a(Zhang et al, , 2018bZhang et al, 2020) focused on long-term (> 100 s) dynamic behaviour of MSMAs, revealed a new phenomenon: the accumulated heat from the intrinsic dissipation of the cyclic martensite reorientation induced by cyclic magnetic field can significantly increase the material's temperature. Under the weak ambient heat-transfer condition, the phase transformation temperature can be reached, and the martensite-to-austenite transformation can be triggered, leading to a sudden strain drop of the material.…”