Universal Scaling Law for the Size Effect on Superelasticity at the Nanoscale Promotes the Use of Shape‐Memory Alloys in Stretchable Devices
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Electronic Materials"
DOI: 10.1002/aelm.201900741
Abstract: Shape‐memory alloys (SMAs) are the most stretchable metallic materials thanks to their superelastic behavior associated with the stress‐induced martensitic transformation. This property makes SMAs of potential interest for flexible and wearable electronic technologies, provided that… read more here.
Keywords: size; memory alloys; law; shape memory ... See more keywords
A numerical model based on Voronoi tessellation for the simulation of the mechanical response of porous shape memory alloys
Sign Up to like & getrecommendations! Published in 2018 at "Meccanica"
DOI: 10.1007/s11012-018-0883-6
Abstract: In recent years, porous shape memory alloys have found several industrial applications. Thanks to biocompatibility, corrosion resistance, and superior mechanical properties, porous NiTi has been introduced as a promising candidate for being used as bone… read more here.
Keywords: response; porous shape; shape memory; memory alloys ... See more keywords
Nonlocal elasticity in shape memory alloys modeled using peridynamics for solving dynamic problems
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DOI: 10.1007/s11071-019-04943-5
Abstract: The work is primarily devoted to the peridynamic model elaborated for a solid body made of shape memory alloys (SMAs). The superelasticity effect is taken into consideration as well as its practical applications. Hence, the… read more here.
Keywords: memory alloys; model; energy dissipation; peridynamic model ... See more keywords
Experimental and theoretical analyses of transformation temperatures of Cu-based shape memory alloys
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DOI: 10.1007/s12034-019-1911-4
Abstract: Binary-shape memory alloys that are based on copper, mainly copper–aluminium, copper–zinc and copper–tin alloys, either with or without ternary elemental additions, are of special interest to the industry and academia because of their good shape… read more here.
Keywords: usepackage; document; shape memory; memory alloys ... See more keywords
Efficiency of Energy Harvesting in Ni–Mn–Ga Shape Memory Alloys
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DOI: 10.1007/s40830-018-0158-z
Abstract: Many researchers have reported on the voltage and power generated while energy harvesting using Ni–Mn–Ga shape memory alloys; few researchers report on the power conversion efficiency of energy harvesting. We measured the magneto-mechanical behavior and… read more here.
Keywords: energy; shape memory; memory alloys; energy harvesting ... See more keywords
Powder Metallurgy Fabrication of Porous 51(at.%)Ni–Ti Shape Memory Alloys for Biomedical Applications
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DOI: 10.1007/s40830-018-0176-x
Abstract: The effect of time and temperature on the microwave sintering of 51(at.%)Ni–Ti shape memory alloys (SMAs) was investigated in the current research. Furthermore, the microstructure, mechanical properties, and bio-corrosion properties were analyzed based on the… read more here.
Keywords: temperature; shape memory; memory alloys; metallurgy ... See more keywords
Atomic scale processes of phase transformations in nanocrystalline NiTi shape-memory alloys
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DOI: 10.1016/j.actamat.2016.10.019
Abstract: Abstract Molecular dynamics simulations are performed to investigate temperature- and stress-induced phase transformations in nanocrystalline nickel-titanium shape-memory alloys. Our results provide detailed insights into the origins of the experimentally reported characteristics of phase transformations at… read more here.
Keywords: phase transformations; shape memory; memory alloys; scale processes ... See more keywords
Evolution of macroscopic elastic moduli of martensitic polycrystalline NiTi and NiTiCu shape memory alloys with pseudoplastic straining
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DOI: 10.1016/j.actamat.2016.10.024
Abstract: Abstract Elastic constants of polycrystalline NiTi and NiTiCu shape memory alloys in the martensite phase were determined by resonant ultrasound spectroscopy; the evolution of these constants was studied with subsequent applications of compressive loads inducing… read more here.
Keywords: shape memory; memory alloys; polycrystalline niti; niti niticu ... See more keywords
High-pressure torsion driven phase transformations in Cu–Al–Ni shape memory alloys
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DOI: 10.1016/j.actamat.2016.12.003
Abstract: Abstract Severe plastic deformation (SPD) frequently induces phase transformations like decomposition of supersaturated solid solution, dissolution of precipitates, amorphization, nanocrystallization etc. Such diffusive phase transitions are combined with SPD-driven accelerated mass transfer. Displacive (or martensitic)… read more here.
Keywords: phase; phase transformations; shape memory; memory alloys ... See more keywords
An origin of functional fatigue of shape memory alloys
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DOI: 10.1016/j.actamat.2017.01.001
Abstract: Abstract Functional fatigue (FF) during thermal and mechanical cycling, which leads to the generation of macroscopic irrecoverable strain and the loss of dimensional stability, is a critical issue that limits the service life of shape… read more here.
Keywords: functional fatigue; shape memory; memory alloys; transformation ... See more keywords
Enhanced cyclability of elastocaloric effect in boron-microalloyed Ni-Mn-In magnetic shape memory alloys
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DOI: 10.1016/j.actamat.2017.01.025
Abstract: Abstract Cyclability of elastocaloric effect is of crucial importance for practical applications of elastocaloric refrigeration which is a promising alternative to the conventional cooling technology based on vapor compression. The well-known Ni-Mn-based magnetic shape memory… read more here.
Keywords: elastocaloric effect; magnetic shape; shape memory; memory alloys ... See more keywords