Effect of solidification mode on microstructure evolution and properties of magnesium alloy with long-period stacking ordered phase

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外文摘要：The solidification methods of electromagnetic stirring(EMS)and non-electromagnetic stirring were employed to prepare Mg-6Gd-3Y-xZn-0.6Zr(x=1,1.5,2,3)alloys.The evolution of alloy microstructures and the changes in properties were analyzed for different Zn contents.It has been observed that in alloys without electromagnetic stirring,as the Zn content increases,the alloy structure gradually refines.The primary second phase transitions from Mg5RE phase to long-period stacking ordered(LPSO)phase,resulting in improved hardness and elongation.In alloys subjected to electromagnetic stirring,there is a relatively higher content of the second phase,primarily consisting of LPSO phase.After applying electromagnetic stirring,the quantity and the type of LPSO phase in the alloy change.The alloy structure becomes more uniform with electromagnetic stirring,resulting in increased hardness and reduced hardness gradients within the grains.The mechanical properties of alloys with electromagnetic stirring are superior to those without electromagnetic stirring.

外文关键词：

Rare earth magnesium alloyLPSO phaseElectromagnetic stirringCastingProperty

作者：

Hao Li、Hong-mei Chen、Xu Zhang、Qian-hao Zang、Jing Zhang、Di Feng、Yan-xin Qiao、Yu-hang Guo

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作者单位：

School of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,Jiangsu,China

School of Metallurgy and Materials Engineering,Jiangsu University of Science and Technology,Suzhou 215600,Jiangsu,China

基金：

Postgraduate Research & Practice Innovation Program of Jiangsu ProvinceBasic Science(Natural Science)Research General Project of Jiangsu Province Universities,China

项目编号：

Project KYCX22_379222KJB430003

出版年：

2024

DOI：

10.1007/s42243-023-01071-8

钢铁研究学报(英文版)

钢铁研究总院

钢铁研究学报(英文版)

CSTPCD

影响因子：0.584

ISSN：1006-706X

年,卷(期)：2024.31(5)