Recent advances of high strength Mg-RE alloys: Alloy development, forming and application

Li, Yongfeng; Zhang, Ang; Li, Chuangming; Xie, Hecong; Jiang, Bin; Dong, Zhihua; Jin, Peipeng; Pan, Fusheng

doi:10.1016/j.jmrt.2023.08.055

Cited by 52 publications

(4 citation statements)

References 146 publications

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“…The dendrite growth of the Mg-6 wt.%Gd alloy is simulated. The Mg-Gd alloys, as one of the widely used Mg-rare earth alloys, have excellent mechanical properties and good heat resistance [4,40,41]. Due to the large phase contrast under the exposure of collimating X-ray, the solidification behavior of the Mg-6 wt.%Gd alloy can be in situ observed by X-ray synchrotron radiography, which provides experimental references for the present simulations.…”

Section: Computation Settingsmentioning

confidence: 95%

“…As the lightest metallic structural material, magnesium (Mg) alloy has attracted increasing attention with superior properties such as high specific strength, good damping performance, and large hydrogen storage capacity [1][2][3][4]. More than 90 percent of Mg products are manufactured by cast Mg alloys which are formed by smelting and solidification.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Forced Convection on Magnesium Dendrite: Comparison between Constant and Altering Flow Fields

Qin,

Zhang,

et al. 2023

Materials

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Convection has a nonnegligible effect on the growth of the magnesium dendrite with six-primary-branch pattern. Most work, however, investigates the effect of the convection by simplifying the melt flow as a constant horizontal flow. In this work, four convection behaviors, including equally distributed convection, linearly distributed convection, sinusoidal-wave convection, and square-wave convection, are imposed and simulated through the phase-field lattice-Boltzmann schemes. The effects of constant (the former two) and altering (the latter two) flow fields are quantified by the length ratio of the upstream primary arm to the downstream one. The results show that the dendrite asymmetry increases under the constant forced convections but presents nonmonotonic change under the altering convections. A simple mathematical relation is fitted to summarize the dependence of the dendrite asymmetry on the input velocity, the undercooling, and the flow frequency. Deep understanding of the convection effects can guide the prediction and control of the magnesium dendrite under more complex situations.

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Section: Computation Settingsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Effect of Forced Convection on Magnesium Dendrite: Comparison between Constant and Altering Flow Fields

Qin,

Zhang,

et al. 2023

Materials

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“…The reserves of La and Ce are tremendous. For example, the adding of the La element (3~5 wt%) to magnesium alloy leads to the formation of Mg 12 La (Mg 12 Ce) phase, which makes the corrosion rate faster [28]. Liang Ren et al [29] prepared Mg 3 Y-RE m O n in situ reinforced MMCs by redox reaction of RE m O n and Y.…”

Section: Research and Development Of Mg-re (We) Matrix Compositesmentioning

confidence: 99%

Nano-Enhanced Phase Reinforced Magnesium Matrix Composites: A Review of the Matrix, Reinforcement, Interface Design, Properties and Potential Applications

Ren,

Ji,

Guo

et al. 2024

Materials

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Magnesium matrix composites are essential lightweight metal matrix composites, following aluminum matrix composites, with outstanding application prospects in automotive, aerospace lightweight and biomedical materials because of their high specific strength, low density and specific stiffness, good casting performance and rich resources. However, the inherent low plasticity and poor fatigue resistance of magnesium hamper its further application to a certain extent. Many researchers have tried many strengthening methods to improve the properties of magnesium alloys, while the relationship between wear resistance and plasticity still needs to be further improved. The nanoparticles added exhibit a good strengthening effect, especially the ceramic nanoparticles. Nanoparticle-reinforced magnesium matrix composites not only exhibit a high impact toughness, but also maintain the high strength and wear resistance of ceramic materials, effectively balancing the restriction between the strength and toughness. Therefore, this work aims to provide a review of the state of the art of research on the matrix, reinforcement, design, properties and potential applications of nano-reinforced phase-reinforced magnesium matrix composites (especially ceramic nanoparticle-reinforced ones). The conventional and potential matrices for the fabrication of magnesium matrix composites are introduced. The classification and influence of ceramic reinforcements are assessed, and the factors influencing interface bonding strength between reinforcements and matrix, regulation and design, performance and application are analyzed. Finally, the scope of future research in this field is discussed.

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“…In addition, recently magnesium alloys have been considered as bioresorbable medical materials [7][8][9]. For the effective use of magnesium alloys, it is necessary to improve their mechanical and functional properties by varying their compositions and processing technologies [10][11][12]. High strength of magnesium alloys both at room and at elevated up to 300 • C temperatures is achieved by additions of rare earth elements (REEs) to magnesium [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Samarium on the Properties of Hot-Extruded Mg–Y–Gd–Zr Alloys

Lukyanova,

Martynenko,

Rybalchenko

et al. 2023

Crystals

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The effect of such an additional promising alloying element as samarium on hot-extruded Mg–Y–Gd–Zr alloys is investigated. The microstructure, kinetics of aging during the decomposition of a supersaturated Mg solid solution, and the mechanical properties of the alloys are studied. The differences of the recrystallization processes that occur in hot-extruded alloys with various contents of samarium (0, 1.7, 2.5%) are demonstrated. After hot extrusion, Mg–Y–Gd–Zr and Mg–Y–Gd–Sm–Zr alloys are additionally hardened during aging due to the decomposition of a supersaturated Mg solid solution. At the same time, samarium changes the nature of this hardening. The alloys with samarium are hardened faster, and the maximum hardness is achieved with shorter aging exposures. The mechanical properties of hot-extruded Mg–Y–Gd–Zr alloys with samarium addition are determined at room and elevated up to 300 °C temperatures. The efficiency and expediency of using samarium both as a separate alloying element and as a partial replacement of more expensive rare-earth elements in alloys with yttrium and gadolinium are shown.

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Recent advances of high strength Mg-RE alloys: Alloy development, forming and application

Cited by 52 publications

References 146 publications

Effect of Forced Convection on Magnesium Dendrite: Comparison between Constant and Altering Flow Fields

Effect of Forced Convection on Magnesium Dendrite: Comparison between Constant and Altering Flow Fields

Nano-Enhanced Phase Reinforced Magnesium Matrix Composites: A Review of the Matrix, Reinforcement, Interface Design, Properties and Potential Applications

Effect of Samarium on the Properties of Hot-Extruded Mg–Y–Gd–Zr Alloys

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