Measurement of temperature and displacement with NiTi actuators under certain electrical conditions

In this study, various mechanical behaviors of a shape memory alloy, depending on different thermal and electrical conditions to be used in areas such as biomedical, aerospace and aeronautics. Temperature changes and length change rates under different electrical current values of a shape memory all...

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Bibliographic Details
Published inJournal of Measurements in Engineering Vol. 9; no. 2; pp. 87 - 94
Main Authors Toptas, Ersin, Celebi, Mehmet Fatih, Ersoy, Sezgin
Format Journal Article
LanguageEnglish
Published Kaunas JVE International Ltd 01.06.2021
Subjects
Actuators
Aeronautics
Alloys
Biomedical engineering
Biomedical materials
Diameters
Electric currents
Intermetallic compounds
Measurement
Nickel base alloys
Nickel products
Nickel titanides
Shape memory alloys
Strength to weight ratio
Titanium
Titanium alloys
Wire
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Summary:In this study, various mechanical behaviors of a shape memory alloy, depending on different thermal and electrical conditions to be used in areas such as biomedical, aerospace and aeronautics. Temperature changes and length change rates under different electrical current values of a shape memory alloy named "nickel titanium", or "nitinol" (NiTi) has been observed. It has been seen that a 0.3 mm diameter wire can generate a force of 25 N while the material extends its linear measurement with a rate of 3.7 mm/s. It is observed that, under diverse constant electrical current values, the displacement and temperature relations of the nickel titanium wire is varying. It has empirically been seen that the nickel titanium alloy actuators are advantageous than their alternatives in terms of the generated strength to weight ratio and shape memory alloy materials can be used as actuators in industrial and biomedical applications.
ISSN:2335-2124
2424-4635
DOI:10.21595/jme.2021.21841