Experimental Observation on Domain Front Morphology in NiTi Microtube during Tensile Unloading

Ping Feng; Qing Ping Sun

doi:10.4028/www.scientific.net/AMR.47-50.519

Paper Titles

A Comparative Study of the Hydrostatic Performances of 1-3 Piezoelectric Composites with a Porous Matrix
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Friction Characteristic of Sliding Direction and Angle of Micro-Grooved Crosshatch Patterns under Lubricated Contact
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Vascularized Multi-Functional Materials and Structures
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TEM Studies on the Microstructure in Ferromagnetic Shape Memory Alloys
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Experimental Observation on Domain Front Morphology in NiTi Microtube during Tensile Unloading
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Fabrication and Simulation of a Ni–Al₂O₃ Crack-Free Joining for Multiple Metal-Ceramic Composites Using a New Functionally Graded Material (FGM) Method
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The Application of Thermosensitive Magnetic Nanoparticles in Drug Delivery
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Light-Induced Functional VO₂ Films
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Effects of EPON on Mechanical and Thermal Properties of Epoxy Resins
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Experimental Observation on Domain Front Morphology in NiTi Microtube during Tensile Unloading

Abstract:

The experimental results on morphology evolution of macroscopic deformation domain during stress-induced phase transition under uniaxial tension in superelastic NiTi polycrystalline microtubes are reported in this paper. It focuses on morphology of the domain front during unloading process. A series of high-resolution digital photos were taken from the tube surface under equal incremental elongations. The 3D geometry of the front was quantified by an optical profiler. New propagation modes of the front such as rotation and crossing were found.