High‐temperature oxidation of Cu–Al–Ni–Mn shape‐memory alloy-Reference-Cited by-同舟云学术

High‐temperature oxidation of Cu–Al–Ni–Mn shape‐memory alloy

Published:2024-07-16 Issue: Volume: Page:
ISSN:0947-5117
Container-title:Materials and Corrosion
language:en
Short-container-title:Materials & Corrosion

Author:

Gomes Edelize Angélica¹^ORCID,Antunes Renato Altobelli²^ORCID,Mazzer Eric Marchezini³^ORCID,Lins Vanessa de Freitas Cunha⁴^ORCID

Affiliation:

1. Graduate Program in Mechanical Engineering Department Universidade Federal de Minas Gerais Belo Horizonte Brazil

2. Center for Engineering, Modeling, and Applied Social Sciences Universidade Federal do ABC Santo André São Paulo Brazil

3. Departament of Materials Engineering Universidade Federal de São Carlos Sao Carlos Brazil

4. Chemical Engineering Department, Graduate Program in Mechanical Engineering Universidade Federal de Minas Gerais Belo Horizonte Brazil

Abstract

AbstractThe isothermal oxidation behavior of the Cu‐11.35Al‐3.2Ni‐3.5Mn (wt.%) shape‐memory alloy (SMA) in the temperature range of 500–900°C in oxygen was studied using the thermogravimetric (TG) method. TG curve showed that the alloy has parabolic isothermal oxidation characteristics. The effect of oxidation on the surface morphology and chemical composition of the Cu–Al–Ni–Mn alloy was determined by scanning electron microscopy, energy‐dispersive spectroscopy, and X‐ray photoelectron spectroscopy (XPS) analyses. The oxidation rate of SMA increases up to 700°C, remains stable at 800°C, and increases again up to 900°C. The XPS analysis identified that the corrosion products mainly contained MnO2, MnO/Mn2O3, and Al2O3.

Publisher

Wiley

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/maco.202414438

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1. Science and Technology of Shape-Memory Alloys: New Developments

2. Some Applications of Shape-Memory Alloys