The impact of Ce-containing precipitates on the solidification behavior, microstructure, and mechanical properties of Al-6063

Mahmoud, Mohamed; Mosleh, Ahmed O.; Mohamed, Manal G.; El-Moayed, Mohamed H.; Khalifa, Waleed; Поздняков, А. В.; Mohamed, S. S.

doi:10.1016/j.jallcom.2023.169805

Cited by 10 publications

(1 citation statement)

References 22 publications

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“…The rare earth atoms (REAs) react chemically with metal impurity atoms in the molten pool to produce stable RECs. For example, La, Ce, Y, and Er promote the formation of compounds such as La 5 Si 3 , CeFe 2 Si 2 , YSiFe, and Er 1.2 Fe 4 Si 9.8 [28,29], which are expelled as slag. Ding et al [30] demonstrated that the addition of Y reduced impurities in the Fe-rich phase at the grain boundary, contributing to the purity of the alloy.…”

Section: Rees Purify the Molten Pool Of Impurity Metalsmentioning

confidence: 99%

Effects of Rare Earths on Microstructure and Wear Resistance in Metal Additive Manufacturing: A Review

Xiang,

Wang,

Zheng

et al. 2024

Coatings

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Rare earth elements (REEs) doping technology can effectively control the microstructure and improve the quality and performance of materials. This paper summarizes the research progress of REEs in metal additive manufacturing (MAM) in recent years and briefly introduces the effects of REEs on the molten pool fluidity, purified structure, and interfacial bonding between the molten cladding layer and substrate. It focuses on the mechanism of the role of REEs in the refinement and homogenization of microstructures, including grain growth, columnar to equiaxed transition (CET), and elemental segregation. The reasons for the influence of REEs on the homogenization of the structure and elemental segregation are analyzed. The effects of REE type, content, and dimension on hardness and wear resistance are investigated. Finally, tribological applications of REEs in biological and high-temperature environments are summarized, and the impact of REEs-modified alloys is summarized and prospected.

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Section: Rees Purify the Molten Pool Of Impurity Metalsmentioning

confidence: 99%

Effects of Rare Earths on Microstructure and Wear Resistance in Metal Additive Manufacturing: A Review

Xiang,

Wang,

Zheng

et al. 2024

Coatings

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The influence of La and Ce additions on the solidification of alloys from the Al–Fe system

Vončina,

Medved,

Steinacher

et al. 2024

J Therm Anal Calorim

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Aluminium alloys are popular in modern applications due to their lightweight, high strength and ductility. Alloys in the 8xxx series have similar properties to those in the 1xxx series, but are stronger, are more malleable and have higher stiffness. The addition of rare earths (RE) can refine the as-cast microstructure and, as a result, can increase the corrosion resistance and mechanical properties of aluminium alloys at room and high temperatures. The effects of rare earth (Ce and/or La) additions to Al-1.4Fe alloys were investigated. Thermal analysis of the solidification behaviour of the reference alloy showed the occurrence of three reactions corresponding to the formation of α-Al, eutectic (α-Al + AlxFey) and Fe intermetallics, respectively. The results showed similar reactions for the Ce- and/or La-modified alloy, but at slightly different temperatures, indicating a change in the forming phases due to the addition of Ce and/or La. In all cases, the microstructures were typically hypoeutectic, consisting of the primary α-Al and the eutectic (α-Al + AlxFey). The effect of grain refinement of the primary α-Al grains of the as-cast alloy was observed by the addition of RE, while La showed the strongest effect. The effect of the RE additions showed no obvious differences in the morphology of the eutectic AlxFey, although they were present in these phases. When Ce and/or La were added, (α-Al + Al11Ce3) and/or (α-Al + Al11La3) eutectics were formed, while Fe was not detected in these eutectics.

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Effect of Y and Ce Micro-alloying on Microstructure and Hot Tearing of As-Cast Al–Cu–Mg Alloy

Yue,

Zheng,

et al. 2024

Acta Metall. Sin. (Engl. Lett.)

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The impact of Ce-containing precipitates on the solidification behavior, microstructure, and mechanical properties of Al-6063

Cited by 10 publications

References 22 publications

Effects of Rare Earths on Microstructure and Wear Resistance in Metal Additive Manufacturing: A Review

Effects of Rare Earths on Microstructure and Wear Resistance in Metal Additive Manufacturing: A Review

The influence of La and Ce additions on the solidification of alloys from the Al–Fe system

Effect of Y and Ce Micro-alloying on Microstructure and Hot Tearing of As-Cast Al–Cu–Mg Alloy

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