Microstructure and damping properties of LPSO phase dominant Mg-Ni-Y and Mg-Zn-Ni-Y alloys

Lu, Ruopeng; Jiao, Kai; Li, Nanting; Hou, Haiyun; Wang, Jingfeng; Zhao, Yuhong

doi:10.1016/j.jma.2022.06.013

Cited by 9 publications

(4 citation statements)

References 58 publications

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“…Mg presents a black contrast marked with "A", which is attributed to the low average atomic number. This morphology was also reported in other works on Mg-RE-Ni-based alloys [24,[45][46][47][48] The same characteristics can be illustrated by EDS mapping (corresponding to the region in Figure 3c), as shown in Figure 4. Y element is mainly dissolved in YMgNi 4 and Mg 15 Ni (see Figure 4d).…”

Section: Microstructure Of the Original As-cast Alloyssupporting

confidence: 87%

“…Mg presents a black contrast marked with "A", which is attributed to the low average atomic number. This morphology was also reported in other works on Mg-RE-Ni-based alloys [24,[45][46][47][48] It should be noted that large strip shape Mg15NiY can also be observed in the as-cast Mg80Ni14Al2Y4 alloy, indicating Mg15NiY solidified by both proeutectic and eutectic processes. In addition, Al3Ni2Y could not be observed in the EPMA test, possibly due to its low content.…”

Section: Microstructure Of the Original As-cast Alloyssupporting

confidence: 87%

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Study on Microstructure and Hydrogen Storage Properties of Mg80Ni16−xAlxY4 (x = 2, 4, 8) Alloys

Dong,

Li,

Zhai

et al. 2024

Metals

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Mg80Ni16−xAlxY4 (x = 2, 4, 8) alloys were prepared by induction levitation melting, and the effect of substitution of Al for Ni on the microstructure and hydrogen storage properties was studied in the present work. The results illustrated that the solidification path, phase constitution, and grain size were significantly altered by Al addition. Appropriate Al addition improved abundance and grain refinement of the Mg, Mg2Ni, and Mg15NiY ternary eutectic. But as Al further increased, Mg solidified independently rather than in the formation of the ternary eutectic. More Al favored the formation of Al3Ni2Y but suppressed Mg2Ni and YMgNi4. Although the hydrogen absorption activation and the kinetic property deteriorated, the thermodynamic stability of hydrides was enhanced by adding Al. Hydrogen absorption ability under low pressure was improved, and the Mg80Ni8Al8Y4 alloy could absorb nearly 3.5 wt% hydrogen under 1 bar hydrogen at 250 °C.

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Section: Microstructure Of the Original As-cast Alloyssupporting

confidence: 87%

“…Mg presents a black contrast marked with "A", which is attributed to the low average atomic number. This morphology was also reported in other works on Mg-RE-Ni-based alloys [24,[45][46][47][48] It should be noted that large strip shape Mg15NiY can also be observed in the as-cast Mg80Ni14Al2Y4 alloy, indicating Mg15NiY solidified by both proeutectic and eutectic processes. In addition, Al3Ni2Y could not be observed in the EPMA test, possibly due to its low content.…”

Section: Microstructure Of the Original As-cast Alloyssupporting

confidence: 87%

Study on Microstructure and Hydrogen Storage Properties of Mg80Ni16−xAlxY4 (x = 2, 4, 8) Alloys

Dong,

Li,

Zhai

et al. 2024

Metals

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“…Heat treatment can readjust the density of dislocations or other defects in the material, eliminate disordered areas, and improve the damping performance of the alloy [ 76 , 77 ]. Ruopeng Lu et al [ 78 ] studied the microstructure, mechanical properties, and damping properties of Mg 95.34 Ni 2 Y 2.66 alloys and Mg 95.34 Zn 1 Ni 1 Y 2.66 alloys, especially the difference in the long-period stacked ordered phase (LPSO) in these two alloys during heat treatment. After two hours of heat treatment at 773 K, the eutectic phase was integrated into the matrix, and the LPSO phase still maintained a constant structure.…”

Section: Damping Magnesium Alloy Systemmentioning

confidence: 99%

“…Heat treatment can readjust the density of dislocations or other defects in the material, eliminate disordered areas, and improve the damping performance of the alloy [76,77]. Ruopeng Lu et al [78] alloys with a rod-shaped LSPO phase showed a good damping capacity and exceeded the high damping standard (Q −1 > 0.01). This might be caused by the difference between the second phase and solid solution atom content.…”

Section: Mg-ni Damping Magnesium Alloysmentioning

confidence: 99%

Research Progress and the Prospect of Damping Magnesium Alloys

Wang,

Zou,

Dang

et al. 2024

Materials

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As the lightest structural metal material, magnesium alloys possess good casting properties, high electrical and thermal conductivity, high electromagnetic shielding, and excellent damping properties. With the increasing demand for lightweight, high-strength, and high-damping structural materials in aviation, automobiles, rail transit, and other industries with serious vibration and noise, damping magnesium alloy materials are becoming one of the important development directions of magnesium alloys. A comprehensive review of the progress in this field is conducive to the development of damping magnesium alloys. This review not only looks back on the traditional damping magnesium alloys represented by Mg-Zr alloys, Mg-Cu-Mn alloys, etc. but also introduces the new damping magnesium materials, such as magnesium matrix composites and porous magnesium. But up to now, there have still been some problems in the research of damping magnesium materials. The effect of spiral dislocation on damping is still unknown and needs to be studied; the contradiction between damping performance and mechanical properties still lacks a good balance method. In the future, the introduction of more diversified damping regulating methods, such as adding other elements and reinforcements, optimizing the manufacturing method of damping magnesium alloy, etc., to solve these issues, will be the development trend of damping magnesium materials.

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Optimization on microstructure, mechanical properties and damping capacities of duplex structured Mg-8Li-4Zn-1Mn alloys

Cao

Zhu

Gao

et al. 2023

Int J Miner Metall Mater

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Microstructure and damping properties of LPSO phase dominant Mg-Ni-Y and Mg-Zn-Ni-Y alloys

Cited by 9 publications

References 58 publications

Study on Microstructure and Hydrogen Storage Properties of Mg80Ni16−xAlxY4 (x = 2, 4, 8) Alloys

Study on Microstructure and Hydrogen Storage Properties of Mg80Ni16−xAlxY4 (x = 2, 4, 8) Alloys

Research Progress and the Prospect of Damping Magnesium Alloys

Optimization on microstructure, mechanical properties and damping capacities of duplex structured Mg-8Li-4Zn-1Mn alloys

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