Elaboration and characterization of Cu–Zn–Al shape memory alloys

Makri, Hocine and Saib, Cherif and Amroune, Salah and Zergane, Said and Mohamad, Barhm and Benarioua, Mokhtar and Necib, Kamel (2025) Elaboration and characterization of Cu–Zn–Al shape memory alloys. POLLACK PERIODICA : AN INTERNATIONAL JOURNAL FOR ENGINEERING AND INFORMATION SCIENCES, 20 (1). pp. 117-124. ISSN 1788-1994 (print); 1788-3911 (online)

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Abstract

The study examines Cu–Zn–Al shape memory alloys, vital in aeronautics and automotive sectors. It aims to characterize their thermo-mechanical transformations induced by composition and heat treatments, focusing on how these impact mechanical properties, especially grain size refinement. Analysis covers transformation temperatures, micro-hardness, induced transformations, and mechanical tests. Results show thermoplastic martensitic transformations, with micro-hardness aiding in identifying characteristic points. The study's novelty lies in understanding how grain size refinement affects these transformations and the role of micro-hardness in precise characterization.

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