Theoretical and Experimental Designs on Several Mechanical Properties of Cu–Al–Zn Shape Memory Alloys Used in the Processing Industry

Constantin Plăcintă; Sergiu Stanciu; Mirela Panainte-Lehadus; Emilian Mosnegutu; Florin Nedeff; Valentin Nedeff; Claudia Tomozei; Tudor-Cristian Petrescu; Maricel Agop

doi:10.3390/ma16041441

Materials (Feb 2023)

Theoretical and Experimental Designs on Several Mechanical Properties of Cu–Al–Zn Shape Memory Alloys Used in the Processing Industry

Constantin Plăcintă,
Sergiu Stanciu,
Mirela Panainte-Lehadus,
Emilian Mosnegutu,
Florin Nedeff,
Valentin Nedeff,
Claudia Tomozei,
Tudor-Cristian Petrescu,
Maricel Agop

Affiliations

Constantin Plăcintă: Faculty of Material Science and Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
Sergiu Stanciu: Faculty of Material Science and Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
Mirela Panainte-Lehadus: Department of Environmental Engineering and Mechanical Engineering, Faculty of Engineering, Vasile Alecsandri University of Bacau, 157 Calea Marasesti, 600115 Bacau, Romania
Emilian Mosnegutu: Department of Environmental Engineering and Mechanical Engineering, Faculty of Engineering, Vasile Alecsandri University of Bacau, 157 Calea Marasesti, 600115 Bacau, Romania
Florin Nedeff: Department of Environmental Engineering and Mechanical Engineering, Faculty of Engineering, Vasile Alecsandri University of Bacau, 157 Calea Marasesti, 600115 Bacau, Romania
Valentin Nedeff: Department of Environmental Engineering and Mechanical Engineering, Faculty of Engineering, Vasile Alecsandri University of Bacau, 157 Calea Marasesti, 600115 Bacau, Romania
Claudia Tomozei: Department of Environmental Engineering and Mechanical Engineering, Faculty of Engineering, Vasile Alecsandri University of Bacau, 157 Calea Marasesti, 600115 Bacau, Romania
Tudor-Cristian Petrescu: Faculty of Civil Engineering and Building Services, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
Maricel Agop: Department of Physics, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania

DOI: https://doi.org/10.3390/ma16041441
Journal volume & issue: Vol. 16, no. 4
p. 1441

Abstract

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By assimilating shape memory alloys with mathematical multifractal-type objects, a theoretical model based on Scale Relativity Theory in the form of The Multifractal Theory of Motion, in order to explain the mechanical behavior of such material, is proposed. The model is validated by analyzing the mechanical behavior of Cu–Al–Zn shape memory alloy with various chemical compositions. More precisely, the multifractal tunnel effect can “mime” the mechanical hysteresis of such a material, a situation in which a direct correspondence for several mechanical properties of Cu–Al–Zn is highlighted (the chemical composition can be correlated with the shapes of the curves controlled through the multifractality degree, while the areas delimited by the same curves can be correlated with the multifractal specific potential, as a measure of the mechanical memory degree).

Published in Materials

ISSN: 1996-1944 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering; Technology: Engineering (General). Civil engineering (General); Science: Natural history (General): Microscopy; Science: Physics: Descriptive and experimental mechanics
Website: http://www.mdpi.com/journal/materials/

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