Determination of Transformation Temperatures of SMAs by Varying the Force Using Dead Weight Method

Kiran D. Jadhav; U.S. Mallikarjun; S.H. Adarsh; S. Prashantha

doi:10.4028/www.scientific.net/AMM.813-814.166

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 813-814Determination of Transformation Temperatures of...

Determination of Transformation Temperatures of SMAs by Varying the Force Using Dead Weight Method

Abstract:

Shape-memory material is an alloy that “Remembers” its original shape and that when deformed to its Pre-deformed shape when heated. Phase transformation temperature is one of the most important parameters for the shape memory alloys. In this present work phase transformation temperature is measured by the dead weight method and compared with standard Differential scanning calorimetry (DSC) method. The objective of this paper is to study the microstructure of the Shape memory alloy (SMA) wire, determining the Phase Transformation temperature of NiTinol alloy i.e. Marteniste start (M_s), Martensite finish (M_f), Austenite Start (A_s), Austenite finish (A_f) by a Dead Weight method and also studying the stress-strain behavior with variation of Temperatures to show the Shape memory effect in the NiTinol SMA wire.

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Periodical:

Applied Mechanics and Materials (Volumes 813-814)

Pages:

166-171

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.813-814.166

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Online since:

November 2015

Authors:

Kiran D. Jadhav, U.S. Mallikarjun, S.H. Adarsh*, S. Prashantha

Keywords:

Austenite, Dead Weight, DSC Method, Martensite, Microstructure, Nitinol Wire, Phase Transformation Temperature, Shape Memory Alloy

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