Microstructure and corrosion behavior of Al3Ti/ADC12 composite modified with Sr

Yu, Bao-biao; Yan, Hong; Wu, Qi; Hu, Zhi; Chen, Fanhui

doi:10.1007/s12613-018-1633-4

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…This was mainly attributed to agglomerated GNPs in the matrix, which became cathodic sites and resulted in the galvanic corrosion of the nanocomposites [24,25]. Meanwhile, it can also be seen from Figure 5b that the Ecorr increased and the Icorr decreased after adding 0.5 wt%CeO 2 @GNPs, indicating that the existence of the CeO 2 layer improved the corrosion resistance to some extent compared to the 0.5 wt%GNPs/2024Al [26]. The Nyquist and Bode plots obtained through fitting using the ZsimpWin 3.6 software are shown in Figure 6.…”

Section: Corrosion Resistancementioning

confidence: 92%

Effect of CeO2@GNPs on the Corrosion Properties of 2024 Alloy

Wu,

Guo,

Cui

et al. 2023

Applied Sciences

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The nanocomposites of 2024 Al reinforced with CeO2@GNPs (graphene) nanoparticles were fabricated using the hot-press sintering method. With the addition of 0.5 wt% CeO2@GNPs, the YS and UTS of the fabricated nanocomposites increased by 21.1% and 24.7%, respectively. The load transfer effect and optimization of the interfacial bonding were the main factors to improve the mechanical properties of the composites. The effect of the surface modification of GNPs on the corrosion resistance of the composites was investigated, demonstrating that the addition of GNPs weakened the corrosion resistance of the fabricated nanocomposites. Meanwhile, the corrosion current density (2.776 × 10−3 A·cm−2) and polarization resistance (13,971.37 Ω cm2) of the prepared composites with CeO2 nanoparticle-layered GNPs exhibited a significant decreasing trend compared with the composites without a CeO2 nanoparticle layer (3.540 × 10−3 A·cm−2, 10,199.72 Ω cm2). Optimizing the dispersion of GNPs and their interfacial bonding with the aluminum matrix promoted the reduction in the corrosion area and the possibility of micro-couple formation, leading to an effective enhancement of the corrosion resistance of the nanocomposites.

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Section: Corrosion Resistancementioning

confidence: 92%

Effect of CeO2@GNPs on the Corrosion Properties of 2024 Alloy

Wu,

Guo,

Cui

et al. 2023

Applied Sciences

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Reinforcing effect of laminate structure on the fracture toughness of Al3Ti intermetallic

Cao

Zhang

Zhou

et al. 2020

Int J Miner Metall Mater

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Effect of adding rare-earth cerium on the microstructure and acid rain corrosion resistance of the ADC12 alloy

Zhang

Yan

Zou

et al. 2021

International Journal of Materials Research

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The effect of adding cerium on the microstructure and acid rain corrosion resistance of the AlSi11Cu3 alloy was investigated by means of optical microscopy, scanning electron microscopy, and energy dispersive spectroscopy. The AlSi11Cu3 alloy was doped with varying stoichiometries of cerium to generate AlSi11Cu3-xCe, where x = 0, 0.5, 1.0, and 1.5 wt.%. The results show that the α-Al, eutectic Si, and β-Al5FeSi phases in the AlSi11Cu3-1.0Ce alloy are significantly refined. Electrochemical tests demonstrated an increase in the self-corrosion potential value of the AlSi11Cu3-1.0Ce alloy from –670 mV to –628 mV relative to the untreated alloy. In addition, the AlSi11Cu3-1.0Ce alloy has the lowest corrosion current density (8.4 μA × cm–2). Immersion corrosion testing on the AlSi11Cu3-1.0Ce alloy revealed a corrosion rate of 0.71 mg × cm–2 × d–1, constituting a 72% reduction in the corrosion rate compared to the untreated alloy. These results indicate that the AlSi11Cu3-1.0Ce alloy has a high resistance to acid rain corrosion, which is the result of a refinement of the cathode phases.

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Microstructure and corrosion behavior of Al3Ti/ADC12 composite modified with Sr

Cited by 3 publications

References 22 publications

Effect of CeO2@GNPs on the Corrosion Properties of 2024 Alloy

Effect of CeO2@GNPs on the Corrosion Properties of 2024 Alloy

Reinforcing effect of laminate structure on the fracture toughness of Al3Ti intermetallic

Effect of adding rare-earth cerium on the microstructure and acid rain corrosion resistance of the ADC12 alloy

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