Effect of rare earth Ce and Y on microstructure and viscosity of ZL114A alloy

Zhang, Jiahui; Guo, Wentao; Bai, Qingwei; Liu, Xiangjun; Li, Zhuoyang; Sun, Zuolin; Jin, Yongli; Zhao, Zengwu

doi:10.1016/j.jallcom.2024.175755

Journal of Alloys and Compounds

2024

DOI: 10.1016/j.jallcom.2024.175755

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Effect of rare earth Ce and Y on microstructure and viscosity of ZL114A alloy

Jiahui Zhang,

Wentao Guo,

Qingwei Bai

et al.

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2024

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Influence of Processing Routes to Enhance the Mechanical Properties of Mg–6Zn–1Y–3.5CeMM (wt.%) Alloy

Medina,

Pérez,

Garces

et al. 2024

Metals

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The microstructure and mechanical properties were investigated for Mg–6Zn–1Y–3.5CeMM (wt.%) alloy processed by extrusion at 400 °C of as-cast ingots (ACE alloy) or cold-compacted atomized powders (PME alloy). The use of fine-grained atomized powders results in a refinement of the microstructure, manifested by a reduced grain size and a smaller particle size with respect to the alloy processed by casting. The second-phase particles are the same for both W-phase (Mg3Zn3Y2) and T-phase (MgZnCeMM compound) particles, regardless of the processing route. The yield stress of the PME alloy at room temperature is not only increased by almost 40% compared with that of the ACE alloy (307 and 224 MPa, respectively), but the elongation to failure also increases to twice as much for the PME alloy. This differing mechanical behavior is related to the smaller grain size and the homogeneous distribution of the second-phase particles in the PME alloy. Up to 200 °C, both alloys maintain high mechanical strength, with UTS values remaining above 120 MPa. At high temperatures and low strain rates, deformation is controlled by grain boundary sliding, improving the ductility at the expense of a significant decrease in the yield strength of the ACE and PME alloys.

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Influence of Processing Routes to Enhance the Mechanical Properties of Mg–6Zn–1Y–3.5CeMM (wt.%) Alloy

Medina,

Pérez,

Garces

et al. 2024

Metals

View full text Add to dashboard Cite

show abstract

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Effect of rare earth Ce and Y on microstructure and viscosity of ZL114A alloy

Cited by 1 publication

References 28 publications

Influence of Processing Routes to Enhance the Mechanical Properties of Mg–6Zn–1Y–3.5CeMM (wt.%) Alloy

Influence of Processing Routes to Enhance the Mechanical Properties of Mg–6Zn–1Y–3.5CeMM (wt.%) Alloy

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