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Mg-Gd-Y合金的研究进展 崔华1,李永兵2,顾世真3,张济山3,周香林3 (1.北京科技大学材料科学与工程学院,北京,100083;2.机械科学研究总院先进制造技术研究中心,北京,100083;3.北京科技大学新金属材料国家重点实验室,北京,100083) 摘要:已有的研究表明,Mg-Gd-Y系合金具有很好的室温强度和耐热性能,可以进一步扩大镁合金的使用温度范围和应用领域,在航空航天,汽车及电子等工业领域具有巨大的潜在应用价值.介绍了Mg-Gd-Y系合金产生的背景及发展现状,分析总结了Mg-Gd-Y系合金的强化机制,组织结构,力学性能,各种合金元素及微量元素在合金中的作用,并对Mg-Gd-Y系合金今后的发展趋势进行了展望. 关键词:Mg-Gd-Y合金; 力学性能; 组织结构; 时效析出; Mg-Gd-Y alloy; mechanical properties......
; 文献标志码:A Dynamic mechanical property and failure behavior of extruded Mg-Gd-Y alloy under high strain rate... mechanical properties of extruded Mg-Gd-Y magnesium alloy at room temperature. The samples after compression were analyzed by scanning electron microscopy (SEM) and metallographic microscopy......
Superplasticity of Mg-Gd-Y alloy in tensile test at elevated temperature XIAO Yang(肖阳), ZHANG Xin-ming(张新明), DENG Yun-lai(邓运来), FAN Xiao-hui(范晓慧) School of Materials Science and Engineering...; Abstract: The high tensile ductility of Mg-Gd-Y alloy at temperatures......
; 文章编号:1672-7207(2010)02-0483-06 Oxidization of Mg-Gd-Y-Zr alloy during heat treatment process at 773 and 823 K DENG Yun-lai1, 2, YANG Liu1, 2, GUO Tian-cai1, 3, LI Wen-ying1, 3, ZHANG... Mg-Gd-Y-Zr alloy during heat treatment process at 773 and 823 K was studied by using optical microscopy, X-ray diffraction, and scanning electron microscopy. The results show that the thin layer formed......
Enhancement of ductility in high strength Mg-Gd-Y-Zr alloy GAO Lei1, 2, CHEN Rong-shi1, HAN En-hou1 1. State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese... dynamically precipitated at grain boundaries. Key words: Mg-Gd-Y alloy; ductility; multiaxial forging; microstructure; dynamic precipitate 1 Introduction There is increasing scientific and industrial......
applications. Recently, it has been reported by ROKHLIN et al[4], KAMADO et al[5] and HE et al[6-7] that the Mg-Gd-Y magnesium alloy is better than the conventional Al or Mg alloys in strength and creep... of inclusions such as oxide and non-melted rare earth metals[4-7]. Thus, it is urgent to develop effective and economical method to increase the ambient ductility of Mg-Gd-Y alloy. As is well known......
Microstructure evolution during reheating of extruded Mg-Gd-Y-Zr alloy into semisolid state GAO Lei(高 磊)1, 2, LIANG Song-mao(梁松茂)1, CHEN Rong-shi(陈荣石)1, HAN En-hou(韩恩厚)1 1. State Key Laboratory... metallography on quenched microstructures, cooling curve thermal analysis, and thermodynamic calculations were further compared. Key words: semisolid; Mg-Gd-Y alloy; partial remelting; microstructural......
Mg-Gd-Y变形镁合金的组织结构与性能 路林林1,朱世凤2,赵祖德2,黄少东2,杨平1 (1.北京科技大学材料学院,北京,100083;2.中国兵器工业第五九所,重庆,400039) 摘要:对时效后的Mg-Gd-Y合金进行了组织结构及性能的分析.结果表明,该合金有明显高于AZ80合金的硬度,但是抗拉强度只有400 MPa.因为中间合金未充分溶解,难以得到单一的过饱和相.析出的β''相标定结果为简单正交结构,而不是底心正交结构. 关键词:金属材料; 稀土镁合金; 时效; 相分析; 性能; [全文内容正在添加中] ......
Cyclic shear deformation and fatigue of extruded Mg-Gd-Y magnesium alloyFenghua Wang1,2,Miaolin Feng3,Yanyao Jiang4,Jie Dong1,Zhenyan Zhang1,21. National Engineering Research Center of Light Alloy... Y-0.5 Zr(GW83, wt%) magnesium(Mg) alloy were experimentally investigated under cyclic torsion using tubular specimen fabricated along the extrusion direction. The controlled shear strain amplitudes......
, the ultimate tensile strength is 456.8 MPa, yield strength is 348.9 MPa, and elongation is 3.8%. Keywords: Mg-Gd-Y alloy; hot rolling; precipitation; heat treatment; mechanical properties ... alloys. The microstructure evolution and the strengthening mechanism of as-cast Mg-Gd-Y alloy have been investigated recently[4-7]. Besides, Mg-Gd-Y alloys have been extruded and then T5 treated......
