Influence of Gd, Nd and Ce Additions on Microstructures and Mechanical Properties of Ultra-light Dual Phase Mg-9Li-0.4Zr Alloys

Bao, Lei; Zhang, Zhiqiang; Le, Qichi; Li, Qinxue; Chen, Jianzhong

doi:10.1590/1980-5373-mr-2016-0005

Cited by 7 publications

(1 citation statement)

References 18 publications

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“…Some of them expected as a good candidates for use in the spintronic devices 5,6 . The rare-earth materials, including chalcogenides, have been intensively investigated owing to their promising functional properties [7][8][9][10][11] . Tl 5 Te 3 compound crystallizes in tetragonal structure (Sp.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Tl4PbTe3-Tl9TbTe6-Tl9BiTe6 Section of the Tl-Pb-Bi-Tb-Te System

et al. 2018

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The aim of the present study was to determine the phase relations in the Tl 4 PbTe 3 -Tl 9 TbTe 6 -Tl 9 BiTe 6 section of the Tl-Pb-Bi-Tb-Te system. Based on a set of the methods of the physicochemical analysis (differential thermal analysis, powder X-ray diffraction method as well as microhardness measurements), the phase diagram of the Tl 4 PbTe 3 -Tl 9 TbTe 6 boundary system, some isopleth sections, liquidus and solidus surfaces projections, as well as isothermal sections at 840 and 860 K, were plotted. Unlimited solid solutions with the Tl 5 Te 3 structure (δ-phase) were found in the system, which are of interest as a thermoelectric materials.

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Section: Introductionmentioning

confidence: 99%

Experimental Study of the Tl4PbTe3-Tl9TbTe6-Tl9BiTe6 Section of the Tl-Pb-Bi-Tb-Te System

et al. 2018

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Strengthening Effect and Texture of Mg–3Li Alloys Strengthened by Various Rare‐Earth Elements

Bao

Zhang

2018

Adv Eng Mater

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Three Mg-3Li-0.4Zr alloys strengthened by various rare-earth elements (RE: Gd, Nd, and Ce) are prepared and studied to obtain the strengthening effect and texture. The results indicate that Gd exhibits a dramatic strength enhancement with minimum ductility decrease compared with Nd and Ce, which is primarily attributed to the effective pinning effect by the solid dissolved Gd atoms and a great amount of dispersing and homogeneously distributing precipitates with the size from nanometers to decades of nanometers. Moreover, the grain boundary segregated Gd is able to restrain the movement of grain boundaries, which is also the primary strengthening mechanism of Nd and Ce elements. Aging treatment shows improvement on mechanical properties of the three RE-containing alloys, but with little obvious effect. At last, Gd-containing Mg-3Li-0.4Zr alloy has good application potential as a kind of new superlight structural material. Pyramidal slip and tension twinning are the primary mechanisms in the early stage of the extrusion process. Basal slip becomes the primary mechanism accompanied by the transfer of texture from extrusion texture to RE-texture ( parallel to extrusion direction) when the complete dynamic recrystallization is achieved. The Experimental Material and ProceduresCommercial pure Mg (99.95%) and pure Li (99.9%), Mg-50%Gd, Mg-20%Nd, Mg-10%Ce, and Mg-30%Zr master alloys were used in this work to prepare three RE-containing alloys and a RE-free

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Effects of Al and Y Addition on Microstructures and Mechanical Properties of As‐Cast Mg–14Li Based Alloy

Gao

Liu

et al. 2018

Adv Eng Mater

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In this study, effects of Al and Y contents on microstructural evolutions and mechanical properties of the as‐cast Mg–14Li alloy are investigated. The results show that Mg–14Li–xAl (x = 1, 2, 3 wt%) alloys are characterized by predominantly single β–Li and MgLiAl2 phases. Slight refinement of β–Li grains is obtained with the increasing of Al content. The increased Al addition greatly improves the hardness, ultimate tensile strength, and yield strength of the Mg‐14 base alloy, accompanied by a significant reduction in ductility. Meanwhile, with addition of minor Y (0.5 wt%) addition leads to the introduction of homogeneous distribution of Al2Y particles in the Mg–14Li–3Al alloy, which plays a positive role in the strength enhancement. However, the uneven distribution of apparently coarsed Al2Y particles contributes to a significant reduction in tensile strength as the Y content is increased up to 1 wt%.

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Influence of Gd, Nd and Ce Additions on Microstructures and Mechanical Properties of Ultra-light Dual Phase Mg-9Li-0.4Zr Alloys

Cited by 7 publications

References 18 publications

Experimental Study of the Tl4PbTe3-Tl9TbTe6-Tl9BiTe6 Section of the Tl-Pb-Bi-Tb-Te System

Experimental Study of the Tl4PbTe3-Tl9TbTe6-Tl9BiTe6 Section of the Tl-Pb-Bi-Tb-Te System

Strengthening Effect and Texture of Mg–3Li Alloys Strengthened by Various Rare‐Earth Elements

Effects of Al and Y Addition on Microstructures and Mechanical Properties of As‐Cast Mg–14Li Based Alloy

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