Lanthanides: The Key to Durable and Sustainable Corrosion Protection

Zehra, Tehseen; Kaseem, Mosab

doi:10.1021/acssuschemeng.3c00763

Cited by 10 publications

(2 citation statements)

References 122 publications

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“…The finer the grain size, the more dependent on ion conduction [ 37 ]. This tendency suggests that although the oxidation is not clearly formed at 0.5 wt% La, the effects of corrosion inhibition and oxidation are not invalidated, and corrosion can be effectively inhibited [ 38 , 39 ]. As a result, grain boundaries are increased, and repassivation occurs at a relatively high rate, improving the corrosion properties because the grain size is decreased through the corrosion resistance from the polarization curve.…”

Section: Resultsmentioning

confidence: 99%

Enhancement of the Corrosion Properties of Al–10%Si–2%Cu Alloys with La Addition

Kim,

Heo,

Yang

et al. 2024

Materials

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Al–10%Si–2%Cu alloys have been widely used in high-value industries (e.g., aerospace and automobiles) because of their lower specific gravity; however, galvanic corrosion rendered these alloys to have poor corrosion resistance. Therefore, the microstructure and corrosion properties of Al–10%Si–2%Cu alloys were investigated with respect to the lanthanum (La) content. All Al alloy samples were synthesized using gravity casting, with added La contents of 0.00, 0.25, 0.50, 0.75, and 1.00 wt%, and were characterized using microstructural characteristics analysis and electrochemical tests. Adding 0.5 wt% La (xLa-0.5) indicated the finest structure, which had a 4% lower α-Al area fraction than the La-free alloy (xLa-0). However, the area fraction of a 1 wt% La-added (xLa-1) alloy was 2.4% higher than that of xLa-0. The corrosion current density (Icorr) of the xLa-0.5 was 1.09 μA/cm2, representing a 68% decrease as compared to that of xLa-0, and xLa-0.5 reached the highest polarization resistance value (7.32 × 103 Ω·cm2). The improvement in corrosion resistance of xLa-0.5 was due to the rapid and dense formation of a passivation layer induced by its fine structure, as well as the precipitated phase by enhancing the dispersibility of Cu.

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Section: Resultsmentioning

confidence: 99%

Enhancement of the Corrosion Properties of Al–10%Si–2%Cu Alloys with La Addition

Kim,

Heo,

Yang

et al. 2024

Materials

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“…Due to their specific atomic structures, this group of elements presents unique optical, thermal, electrical, and magnetic properties; thus, they are widely used in various fields, including traditional industries, such as glass, agriculture, ceramics, chemicals, etc., as well as high-tech industries such as the energy sector, the automotive sector, healthcare, the nuclear industry, communications, and the military [5][6][7][8][9]. Numbers in mg/kg.…”

Section: Introductionmentioning

confidence: 99%

Recent Work on the Recovery of Rare Earths Using Ionic Liquids and Deep Eutectic Solvents

Alguacil,

Robla

2023

Minerals

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With the development of smart technologies, the use of rare-earth elements (REEs) has been widespread; thus, their importance as valuable and strategic metals has been boosted to levels never known before. Due to their scarcity in the Earth’s crust, the recovery of these elements from secondary resources has also witnessed further developments. Traditional pyrometallurgical and hydrometallurgical processing techniques, though widely used in the recovery of these REEs, have some environmental drawbacks; thus, new recovery approaches are under development. Here, Solvometallurgy has emerged as an environmentally friendly technology, and ionic liquids and deep eutectic solvents have turned out to be first-line chemicals to be used in the different unit operations employed in solvometallurgical processing, i.e., leaching, liquid–liquid extraction, ion exchange (adsorption), precipitation, and electrolysis. This manuscript reviews the most recent literature (2002–June 2023) concerning the use of ionic liquids and deep eutectic solvents in the recovery of REEs from various sources.

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Selection of appropriate electrochemical deposition regime for cerium conversion coating on anodized AA2024-T3 aircraft alloy

Girginov,

Portolesi,

Kozhukharov

et al. 2024

J Appl Electrochem

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Lanthanides: The Key to Durable and Sustainable Corrosion Protection

Abstract: Lanthanides (Ln), as an important class of materials, have recently generated global interest in modern technology due to their unique metallurgical, ceramic, catalytic, electronic, nuclear, and mechanical properties. Here,

Cited by 10 publications

References 122 publications

Enhancement of the Corrosion Properties of Al–10%Si–2%Cu Alloys with La Addition

Enhancement of the Corrosion Properties of Al–10%Si–2%Cu Alloys with La Addition

Recent Work on the Recovery of Rare Earths Using Ionic Liquids and Deep Eutectic Solvents

Selection of appropriate electrochemical deposition regime for cerium conversion coating on anodized AA2024-T3 aircraft alloy

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