STRUCTURAL CHARACTERIZATION OF A SHAPE MEMORY ALLOY (CU-AL-NI) MANUFACTURED BY FUSION

Mokhtar Benarioua¹, Cherif Saib², Salah Amroune³, Sarkaut Ahmed Ameen⁴, Barhm Mohamad⁵*, Said Zergane², Necib Kamel⁶

¹Mechanical Department, Faculty of Technology, Batna 2 University, Batna Algeria.
²Department of Mechanical Engineering, Faculty of Technology, Mohamed Boudiaf University of M’sila, Pôle universitaire route BBA, M’sila, Algeria
³Laboratory of Materials and Mechanics of Structures (LMMS), University of M’sila, Algeria
⁴Automotive Technology Engineering Department, Erbil Technology College, Erbil Polytechnic University, 44001 Erbil, Iraq
⁵Department of Petroleum Technology, Koya Technical Institute, Erbil Polytechnic University, 44001 Erbil, Iraq
⁶LMGMA,laboratoire de Métallurgie et Génie des Matériaux, Annaba, Algeria, Algeria
* Corresponding author: barhm.mohamad@epu.edu.iq

ABSTRACT:This study presents a comprehensive analysis of the crystalline structure of the Cu-Al-Ni shape memory alloy, emphasizing the influence of melting processes on its chemical composition. The investigation encompasses transformation temperatures, microhardness, and induced transformations, providing a detailed understanding of the alloy's behavior. The results highlight complex interactions between chemical composition and crystalline structures while demonstrating the significant impact of thermal variations on shape memory properties. These properties are crucial for the material’s performance, particularly its ability to recover its original shape after deformation. The findings offer valuable insights for optimizing manufacturing processes and heat treatments to enhance the mechanical and functional characteristics of these alloys. Moreover, this research contributes to the development of advanced industrial applications, particularly in demanding sectors such as aerospace, automotive, and medical devices, where the reliability and precision of shape memory materials are essential.

KEYWORDS: Ternary shape memory alloys, structural characterization, thermoelastic transformations, martensite, transformation temperatures

DOI: https://doi.org/10.69076/jomac.2025.0021

CITATION: M. Benarioua, C. Saib, S. Amroune, S.A. Ameen, B. Mohamad, S. Zergane and N. Kamel, STRUCTURAL CHARACTERIZATION OF A SHAPE MEMORY ALLOY (CU-AL-NI) MANUFACTURED BY FUSION, International Journal of Mechanics and Control, Vol. 26, No. 02, pp. 19-24, 2025, https://doi.org/10.69076/jomac.2025.0021

DOWNLOAD LINK (OPEN-ACCESS)