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Grain refinement has been proved to be an effective route to improve the mechanical properties of the Mg-Al alloys which are known as the lightest structural metallic materials [1-3]. Among many grain..., the addition of alkaline-earth elements (Ca and Sr) is another important grain refining method for the Mg-Al alloys [4,5,14-17]. Due to the strong segregating power in the magnesium melt......
[4,5]. Hence, a lot of effort has been devoted to improve the mechanical properties of Mg-Al-based alloys. It has been shown that the mechanical properties of magnesium alloys could be improved remarkably by the alloying effect [6,7]. Due to the low cost, calcium and tin have been used to improve the poor heat resistance property of Mg-Al-based alloys, and there has been increasing attention......
; TG146.2 文献标识码: A Residual bond structure analysis of equilibrium phase diagram of Al-Si and Mg-Al alloys under pressure condition MI Guang-bao1, 2, LI Pei-jie1, 2, HE..., 2008: 2-3. [3] 孙淑华, 李 杰, 徐 瑞, 赵海丽, 刘日平. 高压下Al基合金的凝固组织特征[J]. 高压物理学报, 2008, 22(4): 434-438.SUN Shu-hua, LI Jie, XU Rui, ZHAO Hai-li, LIU Ri-ping. Microstructural characteristics in Al-based alloys......
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in the order of Mg17Al12, Al2Y and Al4Ba phases. Y or Ba addition to the Mg-Al alloys could improve the heat resistance. The calculated bulk modulus B, shear modulus G, elastic modulus E and Poisson ratio ν show that the adding Y or Ba to Mg-Al alloys could promote the brittleness and stiffness, and reduce tenacity and plasticity by forming Al4Ba and Al2Y phases. The calculated cohesive energy and density......
High damping capacities of Mg-Cu based alloys WAN Di-qing(万迪庆)1, HE Bo-lin(何柏林)1, XIONG Guang-yao(熊光耀)1, CHEN Zhao-xia(陈朝霞)1, WANG Jin-cheng(王锦程)2, YANG Gen-cang(杨根仓)2 1. School...’an 710072, China Received 23 September 2009; accepted 30 January 2010 Abstract: The dynamic mechanical analyzer (DMA) was applied to investigate the damping properties of Mg-Cu based alloys. The results......
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): 419-436. [12] BALART M J, PATEL J B, FAN Z. Melt protection of Mg-Al based alloys [J]. Metals, 2016, 131(6): 1-11. [13] MIRAK A R, DIVANDARI M, BOUTORABI S M A, CAMPBELL J. Oxide film characteristics... and give rise to the surface blistering and formation of gas pore defects [6-8]. However, if done properly, it was shown that heat treatment is able to offer particular benefits for Mg-Al die-casting alloys......
Ming-bo, PAN Fu-sheng, BAI Liang, TANG Li-wen. Effects of alloy elements on the microstructure and mechanical properties of Mg-Zn-Al(ZA) based magnesium alloys[J]. Materials Review, 2007, 21(7): 70-73..., QIANG Li-feng, ZHU Tian-bai. Application and process of research of strontium and calcium in Mg-Al based alloys[J]. Foundry, 2006, 55(1): 1-5. [32] PEKGULERYUZ M O,BARIL E. Creep resistant magnesium......
Mg-Al系耐热镁合金中的合金元素及其作用 潘复生1,张静1,李忠盛1,杨明波1 (1.重庆大学材料科学与工程学院,重庆,400044;2.重庆工学院材料科学与工程系,重庆,400050) 摘要:合金化或微合金化作为改善合金性能或设计新型合金的重要手段之一,目前已普遍应用于Mg-A1系耐热镁合金的研究开发中.综述了Mg-Al系耐热镁合金中合金元素Al,Zn,Mn,Sb,Bi,Sn,Si,RE,Ca和Sr的作用行为,重点分析了Al和Zn 2种主体元素对Mg-Al系耐热镁合金组织和性能的影响,讨论了合金元素使用中存在的问题和今后的发展方向. 关键词:Mg-Al系耐热铸造镁合金; 合金元素; 影响; [全文内容正在添加中] ......
