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| 1 | AZ91镁合金挤压组织与性能的试验研究显示文摘通过对AZ91镁合金不同条件下的热挤压成形试验,结果发现,均匀化退火可提高材料塑性,使伸长率由1.8%提高至5%。相对于平模、锥模而言,流线型挤压模具可改善材料的流动性,制备出光滑完整的AZ91棒材。挤压后合金棒材的强度和塑性同时提高,抗拉强度可达340N/mm2,屈服强度超过260N/mm2,伸长率超过12%。SEM扫描电镜分析显示,合金中的第二相为晶界上粗大的Mg17Al12和晶粒内部弥散分布的AlxMny。挤压后Mg17Al12可被碎化,α基体晶粒平均直径细化至20μm,而AlxMny则和铸态的相同,平均直径5μm。 | 陈长江 李静媛 黄东男 陈雨来 | 2009 | 轻合金加工技术2009，37，4： | 1 |
| 2 | The Structural Evolutions of ZL109 Alloy and 7050 Alloy in the Semisolid Squeeze Casting Process显示文摘The structure evolutions of ZL109 alloy and 7050 alloy were studied in the processes of preparing raw billets by low super heat casting, remelting the raw billets, semisolid forming and heat treating components. The thin and symmetrical structure was obtained by using low super heat casting process. The eutectic that lied in the raw billet of ZL109 alloy remelted and produced liquid phase in the process of remelting, but to the 7050 alloy, the eutectic of intergranular and the pointedness of grains was remelted to make the grains more uniform and smooth. In the process of semisolid forming, the primary α and the eutectic inside the ZL109 alloy were separated partly and the grains in the 7050 alloy was conglutinated together. After heat treatment, the eutectic α grains of ZL109 traveled to primary α and shaped the white fishing net like organization; the eutectic Si grains assembled into the black massive particles. As to 7050, after heat treatment, α particles recrystallized and thin grains pattern was obtained. | 翟彦博 刘昌明 | 2010 | Journal of Wuhan University of Technology(Materials Science)2010，25，1： | 1 |
| 3 | Semi-solid squeeze casting process of a ZL109 alloy显示文摘在半固体的过程的 ZL109 合金的结构进化压榨扔并且部件的机械性质被调查。结果证明(1 ) 在原来的营舍的最容易溶解的硅阶段被精制在低过热扔过程;(2 ) 在到保险丝和最容易溶解的硅阶段的晶体的营舍开始的最容易溶解的结构进一步被精制并且在营舍的 remelting 过程的 sphericized;(3 ) 在半固体压榨扔过程,阶段的球状并且精制硅阶段发生,由于在固体和液体之间的磨擦;(4 ) 在热的过程,处理,有主要阶段的最容易溶解的阶段总数和最容易溶解的硅片一起聚集。在热处理以后的半固体部件的延伸升起到 1.42% 。 | ZHAI Yanbo LIU Changming HAN Zhaotang WANG Kai | 2008 | Rare Metals2008，27，3： | 1 |
| 4 | 对高Al镁合金挤压变形影响因素的研究显示文摘以AZ91-D镁合金成分范围为基础设计四种不同Al,Zn,Mn元素含量的高强度镁合金,在650t挤压机上进行不同挤压模具、预处理条件下的热挤压成形。结果表明:合金元素Al,Zn对挤压成形性有较大影响,但未见Mn有明显作用。均质化预处理可以在一定程度上提高材料的塑性。流线型模具较平模、锥模可显著地改善材料的流动性。挤压后合金的强度和塑性同时得到大幅度提高,挤压后晶粒被细化至平均20μm,棒材抗拉强度可达到340MPa,延伸率超过12%。 | 李静媛 陈雨来 陈长江 曹亮 | 2009 | 材料工程2009，37，8： | 1 |
| 5 | Influence of Sb modification on microstructures and me Mg_2 Si/AM60 composites显示文摘The refining effect and mechanism of Sb on Mg2Si and the microstructure of the matrix were investigated.The results indicate that there are Mg3Sb2 particles in the composites with the addition of Sb,and Mg3Sb2 can promote the formation of fine polygonal type Mg2Si by providing nucleation site.Meanwhile,the grain size of Sb modified alloy is finer than that of the matrix. The improved microstructure results in the improvement of mechanical properties.The ultimate tensile strength is increased by 12.2%with the addition of 0.8%Sb. | 闫洪 胡勇 吴孝泉 | 2010 | Transactions of Nonferrous Metals Society of China2010，20，B07： | 0 |
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