首页|Liquid-solid phase separation and recycling of permalloys in liquid Mg

Liquid-solid phase separation and recycling of permalloys in liquid Mg

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Liquid-solid phase separation of permalloy in liquid Mg results in selectively dissolved Ni,which provides a unique opportunity for the design of immiscible heterogeneous composite materials and the compre-hensive metal recycling of permalloy scraps.A guideline of the alloy design for the liquid-solid phase sep-aration system was proposed.The effects of immersion temperature and time on the Ni extraction were studied by an experimental method.The diffusion behavior of Ni from the permalloy to liquid Mg and the microstructure evolution in the permalloy during the liquid-solid phase separation were discussed.The results show that the Ni in the permalloy was quickly extracted into the liquid Mg and formed an Mg-Ni alloy,while the other components such as Fe,Co,and Mn were held back in the phase-separated permalloy.The phase-separated permalloy with the solidified Mg exhibits a three-dimensional(3D)Fe/Mg bicontinuous composite structure.Furthermore,simple treatments were carried out for the reaction prod-ucts such as the Fe/Mg bicontinuous composite and the Mg-Ni alloy,and the recycling strategies for func-tionalization of these treated reaction products were provided.A 3D porous Fe-based alloy with electro-magnetic interference(EMI)shielding efficiency of 52 dB can be obtained if Mg is removed from the Fe/Mg bicontinuous composite.Instead of the complete separation of pure Ni from the recycled Mg-Ni alloy by vacuum distilling,the Mg-Ni alloy can be enriched into Mg2Ni as an initial hydrogen storage material.

Immiscible alloysLiquid-solid phase separationPermalloySelective extractionRecycling

Pengju Yang、Jie He、Baodong You、Mingwei Zhu、Shaogang Wang、Ivan Kaban、Jiuzhou Zhao

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Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China

School of Materials Science and Engineering Shenyang Aerospace University,Shenyang 110136,China

School of Materials Science and Engineering University of Science and Technology of China,Shenyang 110016,China

Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China

Leibniz Institute for Solid State and Materials Research-IFW Dresden,Helmholtzstr,20,01069 Dresden,Germany

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Space Application System of China Manned Space ProgramNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaScientific Instrument Developing Project of the Chinese Academy of SciencesIMR Innovation Fund

KJZ-YY-NCL065197428852174280YJKYYQ20210012E255A901

2024

10.1016/j.jmst.2023.11.028

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.188(21)
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