Results 11 to 20 of about 2,835 (259)

Ion polishing as a method of imaging the magnetic structures in CoNiGa monocrystal

open access: yesResults in Physics, 2018
Magnetic domain structure of magnetic shape memory alloy was observed using backscattered electron detector in scanning electron microscope and using Fresnel imaging in transmission electron microscope.
Andrzej Żak   +5 more
doaj   +1 more source

Development of High-Entropy Shape-Memory Alloys: Structure and Properties

open access: yesУспехи физики металлов, 2023
Amongst functional materials, shape-memory alloys occupy a special place. Discovered in the beginning of 1960th in XX century, these alloys attracted quite an attention because of the possibility to restore significant deformation amounts at certain ...
G. S. Firstov, Yu. M. Koval, V. S. Filatova, V. V. Odnosum, G. Gerstein, and H. J. Maier
doaj   +1 more source

Designing a New Ni-Mn-Sn Ferromagnetic Shape Memory Alloy with Excellent Performance by Cu Addition

open access: yesMetals, 2018
Both magnetic-field-induced reverse martensitic transformation (MFIRMT) and a high working temperature are crucial for the application of Ni-Mn-Sn magnetic shape memory alloys.
Kun Zhang   +5 more
doaj   +1 more source

Enhanced Reversible Magnetic-Field-Induced Strain in Ni-Mn-Ga Alloy

open access: yesMetals, 2021
A phase-field model was developed to simulate the ferromagnetic domain structure and martensite variant microstructure of Ni-Mn-Ga shape-memory alloy.
Pingping Wu, Yongfeng Liang
doaj   +1 more source

MAGNETIC SHAPE MEMORY ALLOYS: THREE-DIMENSIONAL MODELING AND ANALYSIS

open access: yesMathematical Models and Methods in Applied Sciences, 2011
We present a three-dimensional phenomenological model for the magneto-mechanical behavior of magnetic shape memory materials such as Ni2MnGa . Moving from micromagnetic considerations, we advance to some thermodynamically consistent constitutive relations describing the magnetically-induced cubic-to-tetragonal martensitic transformation in a single ...
AL Bessoud, U Stefanelli
openaire   +4 more sources

Study of Alternating Transmission Performance of Shape Memory Alloy and Magneto-rheological Fluid

open access: yesJixie chuandong, 2023
In response to the shortcomings such as the degradation of transmission performance of magneto-rheological fluid at high temperature, an alternating transmission method of shape memory alloy and magneto-rheological fluid is proposed.
Gong Hang, Hu Guanghui, Hu Rongli
doaj  

Study on the Performance of Electrothermal Shape Memory Alloy and Magnetorheological Combined Drive

open access: yesJixie chuandong, 2021
In order to overcome the disadvantage of small transfer torque in single magnetorheological drive, a combined drive method of electrothermal shape memory alloy(SMA) and magnetorheological is proposed, which can improve the transfer torque of drive device.
Yang Xiong, Jin Huang, Ruizhi Shu
doaj  

Position Measurements Using Magnetic Sensors for a Shape Memory Alloy Linear Actuator

open access: yesSensors, 2022
This article presents the design and implementation of a linear actuator based on NiTi Shape Memory Alloys with temperature and position measurements based on a magnetic sensor array and a set of thermistors.
Ricardo Cortez Vega   +5 more
doaj   +1 more source

A Model to Describe the Magnetomechanical Behavior of Martensite in Magnetic Shape Memory Alloy

open access: yesAdvances in Condensed Matter Physics, 2014
A model to describe the constitutive behavior of magnetic shape memory alloy composed with pure martensite is proposed based on the analysis of variants reorientation.
Zaoyang Guo   +4 more
doaj   +1 more source

Magnetic Moment of Cu-Modified Ni2MnGa Magnetic Shape Memory Alloys

open access: yesMetals, 2013
The magnetization measurements at 5 K were carried out for Ni2Mn1 − xCuxGa (0 ≤ x ≤ 0.40) and Ni2MnGa1 − yCuy (0 ≤ y ≤ 0.25) alloys. All of the magnetization curves are characteristic of ferromagnetism or ferrimagnetism. By using Arrott plot analysis the
Kurt R.A. Ziebeck   +8 more
doaj   +1 more source

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