铜-铝-镍-锰形状记忆合金的高温氧化

IF 1.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-16 DOI:10.1002/maco.202414438

Edelize Angélica Gomes, Renato Altobelli Antunes, Eric Marchezini Mazzer, Vanessa de Freitas Cunha Lins

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引用次数: 0

摘要

采用热重法（TG）研究了 Cu-11.35Al-3.2Ni-3.5Mn (wt.%) 形状记忆合金（SMA）在氧气中于 500-900°C 温度范围内的等温氧化行为。TG 曲线显示合金具有抛物线等温氧化特性。通过扫描电子显微镜、能量色散光谱和 X 射线光电子能谱（XPS）分析，确定了氧化对铜-铝-镍-锰合金表面形貌和化学成分的影响。SMA 的氧化率在 700°C 时上升，800°C 时保持稳定，900°C 时再次上升。XPS 分析表明，腐蚀产物主要含有 MnO2、MnO/Mn2O3 和 Al2O3。

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

The 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.

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来源期刊

Materials and Corrosion-werkstoffe Und Korrosion 工程技术-材料科学：综合

CiteScore

3.70

自引率

11.10%

发文量

199

审稿时长

1.4 months

期刊介绍： Materials and Corrosion is the leading European journal in its field, providing rapid and comprehensive coverage of the subject and specifically highlighting the increasing importance of corrosion research and prevention. Several sections exclusive to Materials and Corrosion bring you closer to the current events in the field of corrosion research and add to the impact this journal can make on your work.