Improving the Mechanical Performance of Shape Memory Alloy Through Homogenous Nano-Distribution Temperature by Immersion in Heating and Cooling Water

Articles in Press

Document Type : Research Paper

Authors

1 Department of Aerospace Engineering,Faculty of Engineering, Universiti Putra Malaysia,43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.

2 1 Department of Aerospace Engineering,Faculty of Engineering, Universiti Putra Malaysia,43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.

3 Faculty of Engineering, University of Thi-Qar, 64001 Al-Nassiriya, Iraq.

Abstract

Shape memory alloy (SMA) is an alloy that consists of nickel and titanium, also known as NiTi, and has unique physical and mechanical properties. This material is characterized by its ability to deform plastically at room temperature phase and return to its previous shape phase before deformation when its temperature is increased while maintaining its solid state in both phases. The force and deflection are the effects of the change in the crystal structure that occurs in the SMA actuator when subjected to temperature increases and decreases. The effect and activity of the SMA actuator depend on the distribution of temperature which is based on the heating technique. The immersion of the SMA actuator in the water is utilized for uniform temperature distribution to all the ambient. The most common requirement to operate the actuator is the maximum linear displacement motion of the SMA contraction in parallel with force per time. The force produced from the SMA actuator contraction represents the ability of the actuator to move an object and generate torque. The maximum response of the SMA spring is generated from the optimum preload applied relative to the speed of the actuator performance.

Keywords

Journal of Nanostructures

Articles in Press, Accepted Manuscript
Available Online from 08 July 2024

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