Special issue "Magnesium and magnesium alloys". Age hardening characteristics and high temperature strength of Mg-Gd and Mg-Tb alloys.

重晴, 鎌土; 秀, 岩澤; 清明, 大内; 陽, 小島; 隆二, 二宮

doi:10.2464/jilm.42.727

Cited by 54 publications

(16 citation statements)

References 2 publications

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“…Drits [5,6]found that Mg-22Gd alloy at room temperature tensile strength reaches above 400 MPa, and its high temperature strength is superior to the traditional heat-resistant magnesium alloys WE54, its heat-resistant temperature reached 350℃ [7][8][9].…”

Section: The Characteristics Of Gd and Mg-gd Binary Alloymentioning

confidence: 99%

Research Progress of Gadolinium in Heat Resistant Magnesium alloys

Yan¹,

Li²,

Chen³

et al. 2015

Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering

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Section: The Characteristics Of Gd and Mg-gd Binary Alloymentioning

confidence: 99%

Research Progress of Gadolinium in Heat Resistant Magnesium alloys

Yan¹,

Li²,

Chen³

et al. 2015

Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering

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“…Grain coarsening easily occurred in Mg-Gd alloy having no intermetallic compounds at grain boundaries. 7) Therefore, the intermetallic compounds are seemed to suppress grain growth.…”

Section: Effects Of Zn Content On Microstructures and Aging Curvesmentioning

confidence: 99%

“…Especially, the magnesium alloys containing Y or heavy rare earth elements show quite high strength. [1][2][3][4][5][6][7][8][9] It was reported that the rolled and heat treated Mg-Gd-Y alloy exhibited both high tensile strength exceeding 400 MPa, and good corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Newly Developed Age Hardenable Mg-3.2 mol%Gd-0.5 mol%Zn Casting Alloy

et al. 2008

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A new Mg-Gd-Zn-base cast alloy was developed for high strength casting products. Effects of Zn content on microstructures and tensile strength were investigated. Both Mg-3.2%Gd-0.5%Zn-0.2%Zr (in mol%, 0.5GZ) and Mg-3.2%Gd-0.75%Zn-0.2%Zr (0.75GZ) alloys showed remarkable age hardening by precipitation of 0 phase with bco structure as similar to Mg-Gd-Y-Zr alloy. The precipitates are finer and denser than those of Mg-Gd-Y-Zn-Zr alloy by Zn and a large amount of Gd addition. Mg 3 Gd compound particles remained at grain boundaries after solution treatment. Long period stacking ordered (LPSO) phase did not form. It is considered that Mg 3 Gd particles suppressed grain coarsening during the heat treatment, and provided fine grain structure of about 30 mm in diameter. Tensile strength of the T6-treated 0.5GZ alloy was 410 MPa at room temperature and the high strength was kept by 473 K.

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“…[1][2][3][4] Although Y is not included in Lanthanoid group, it is generally classified as one of the rare-earth elements because of the similarity of physical properties with Lanthanoid group elements. The effect of Y on the creep behavior of Mg polycrystals have been also investigated and the improvement of creep properties by Y addition is significant.…”

Section: Introductionmentioning

confidence: 99%

Effect of Rare-Earth Elements Y and Dy on the Deformation Behavior of Mg Alloy Single Crystals

et al. 2008

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Effect of rare-earth elements (Y and Dy) on the mechanical properties of Mg solid solution single crystal is investigated. Comparing with the effect of other elements reported by previous studies, the solid solution strengthening by Y and Dy are much higher than that of other additives such as Zn for basal slip operation, while the isotropic strain by Zn atoms is higher than those of Y and Dy. Strain-rate changing tests were conducted for a further understanding of the dislocation motion and it revealed that the activation volumes estimated for Mg alloys with Y and Dy are much smaller than that of Zn-added alloy, while the activation enthalpy is almost the same. It was confirmed that the high strengthening effect by Dy addition is also found by Y addition, while the elastic interaction based on neither isotropic or anisotropic distortion are sufficient to explain the origin of the strengthening effect by Y and Dy addition.

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Special issue "Magnesium and magnesium alloys". Age hardening characteristics and high temperature strength of Mg-Gd and Mg-Tb alloys.

Cited by 54 publications

References 2 publications

Research Progress of Gadolinium in Heat Resistant Magnesium alloys

Research Progress of Gadolinium in Heat Resistant Magnesium alloys

Mechanical Properties of Newly Developed Age Hardenable Mg-3.2 mol%Gd-0.5 mol%Zn Casting Alloy

Effect of Rare-Earth Elements Y and Dy on the Deformation Behavior of Mg Alloy Single Crystals

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