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

##plugins.themes.bootstrap3.article.sidebar##

PDF Visual Abstract
Published Sep 22, 2022
DOI https://doi.org/10.3221/IGF-ESIS.62.05

##plugins.themes.bootstrap3.article.main##

Andrea Brotzu
Department of Chemical Engineering, Material, Environments (DICMA) Sapienza, University of Rome (Italy)
https://orcid.org/0000-0001-9530-4602 Barbara De Filippo
Consiglio Nazionale delle Ricerche, Istituto per le Applicazioni del Calcolo “Mauro Picone”, Rome (Italy)
Stefano Natali
Department of Chemical Engineering, Material, Environments (DICMA) Sapienza, University of Rome (Italy)
Laura Zortea
Department of Chemical Engineering, Material, Environments (DICMA) Sapienza, University of, Rome (Italy)

Abstract

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

Comments

  1. Latest Oldest Top Comments

    Downloads

    Download data is not yet available.

    ##plugins.themes.bootstrap3.article.details##

    Issue
    Vol. 16 No. 62 (2022): October 2022
    Section
    Environmentally Assisted Fracture

    How to Cite

    Brotzu, A. (2022) “Corrosion behavior of Shape Memory Alloy in NaCl environment and recovery maintenance in Cu-Zn-Al sysytem”, Frattura ed Integrità Strutturale, 16(62), pp. 64–74. doi: 10.3221/IGF-ESIS.62.05.
    Creative Commons License

    This work is licensed under a Creative Commons Attribution 4.0 International License.

    Copyright 
    Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

    Open Access Statement

    Frattura ed Integrità Strutturale (Fracture and Structural Integrity, F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

    F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit and providing a link to the license and indicating if changes were made.