Corrosion behavior of Shape Memory Alloy in NaCl environment and recovery maintenance in Cu-Zn-Al sysytem

Shape memory effect (SME) and the relation with corrosion behavior of Cu-Zn-Al Smart Memory Alloys (SMAs) were investigated using different techniques: Scanning Electron Microscopy equipped with an Energy Dispersive System, X-Ray Diffraction analysis, Electrochemical Test in NaCl solutions with dif...

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Main Authors: Andrea Brotzu, Barbara De Filippo, Stefano Natali, Laura Zortea
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2022-09-01
Series:Fracture and Structural Integrity
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Online Access:https://www.fracturae.com/index.php/fis/article/view/3583
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author Andrea Brotzu
Barbara De Filippo
Stefano Natali
Laura Zortea
author_facet Andrea Brotzu
Barbara De Filippo
Stefano Natali
Laura Zortea
author_sort Andrea Brotzu
collection DOAJ
description Shape memory effect (SME) and the relation with corrosion behavior of Cu-Zn-Al Smart Memory Alloys (SMAs) were investigated using different techniques: Scanning Electron Microscopy equipped with an Energy Dispersive System, X-Ray Diffraction analysis, Electrochemical Test in NaCl solutions with different concentrations (0.035%, 0.35% and 3.5%), which simulate coastal conditions, mechanical characterization through tensile test and guided bend test.  SMAs are an important class of smart materials able to recover after deformation a pre-imposed shape through a temperature modification. These alloys show great potential, finding several applications in medicine and in different types of industry sectors (aerospace, architecture, automotive etc.). Cu-based SMAs, including Cu-Zn-Al alloys, have lower production costs with respect to Ni-Ti alloys as well as good possibility in seismic and architectural applications. A Cu-Zn-Al alloy with a theoretical composition of 25 wt.% Zn and 4 wt.% Al was produced by casting method. The aim of this study is to characterize the microstructure, the mechanical properties and the corrosion behavior through different kind of standard corrosion tests of this alloy and to evaluate the effect of corrosion damage on the shape memory recovery capability through a combination of corrosion and thermos-mechanical cyclic test and SEM observation
format Article
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publishDate 2022-09-01
publisher Gruppo Italiano Frattura
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series Fracture and Structural Integrity
spelling doaj-art-13d1814a2c0e4bbf98e3957e92201c732025-02-03T10:34:51ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932022-09-011662Corrosion behavior of Shape Memory Alloy in NaCl environment and recovery maintenance in Cu-Zn-Al sysytemAndrea Brotzu0Barbara De Filippo1Stefano Natali2Laura Zortea3Department of Chemical Engineering, Material, Environments (DICMA) Sapienza, University of Rome (Italy) Consiglio Nazionale delle Ricerche, Istituto per le Applicazioni del Calcolo “Mauro Picone”, Rome (Italy)Department of Chemical Engineering, Material, Environments (DICMA) Sapienza, University of Rome (Italy) Department of Chemical Engineering, Material, Environments (DICMA) Sapienza, University of, Rome (Italy) Shape memory effect (SME) and the relation with corrosion behavior of Cu-Zn-Al Smart Memory Alloys (SMAs) were investigated using different techniques: Scanning Electron Microscopy equipped with an Energy Dispersive System, X-Ray Diffraction analysis, Electrochemical Test in NaCl solutions with different concentrations (0.035%, 0.35% and 3.5%), which simulate coastal conditions, mechanical characterization through tensile test and guided bend test.  SMAs are an important class of smart materials able to recover after deformation a pre-imposed shape through a temperature modification. These alloys show great potential, finding several applications in medicine and in different types of industry sectors (aerospace, architecture, automotive etc.). Cu-based SMAs, including Cu-Zn-Al alloys, have lower production costs with respect to Ni-Ti alloys as well as good possibility in seismic and architectural applications. A Cu-Zn-Al alloy with a theoretical composition of 25 wt.% Zn and 4 wt.% Al was produced by casting method. The aim of this study is to characterize the microstructure, the mechanical properties and the corrosion behavior through different kind of standard corrosion tests of this alloy and to evaluate the effect of corrosion damage on the shape memory recovery capability through a combination of corrosion and thermos-mechanical cyclic test and SEM observation https://www.fracturae.com/index.php/fis/article/view/3583Cu-Zn-Al- alloyShape Memory EffectElectochemical TestCorrosionShape recovery
spellingShingle Andrea Brotzu
Barbara De Filippo
Stefano Natali
Laura Zortea
Corrosion behavior of Shape Memory Alloy in NaCl environment and recovery maintenance in Cu-Zn-Al sysytem
Fracture and Structural Integrity
Cu-Zn-Al- alloy
Shape Memory Effect
Electochemical Test
Corrosion
Shape recovery
title Corrosion behavior of Shape Memory Alloy in NaCl environment and recovery maintenance in Cu-Zn-Al sysytem
title_full Corrosion behavior of Shape Memory Alloy in NaCl environment and recovery maintenance in Cu-Zn-Al sysytem
title_fullStr Corrosion behavior of Shape Memory Alloy in NaCl environment and recovery maintenance in Cu-Zn-Al sysytem
title_full_unstemmed Corrosion behavior of Shape Memory Alloy in NaCl environment and recovery maintenance in Cu-Zn-Al sysytem
title_short Corrosion behavior of Shape Memory Alloy in NaCl environment and recovery maintenance in Cu-Zn-Al sysytem
title_sort corrosion behavior of shape memory alloy in nacl environment and recovery maintenance in cu zn al sysytem
topic Cu-Zn-Al- alloy
Shape Memory Effect
Electochemical Test
Corrosion
Shape recovery
url https://www.fracturae.com/index.php/fis/article/view/3583
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