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of protective oxidation film on the thermodynamics is attributed to RE elements congregating on the surface of molten Mg alloy. Key words: rare earth (RE); magnesium alloy; oxidation film; ignition..., Be is poisonous, and excessive Be can also damage mechanical properties. Therefore, the applications of alloying with Be or Ca have been greatly limited [4-8]. Rare earth elements have special......
Effect of Rare Earth Elements on Isothermal Transformation and Microstructures in 20Mn Steel刘和,郑登慧,T.Y.Hsu徐祖耀摘 要:<正> The effect of rare earth... ferrite and the rate of pearlitic transformation.In addition,rare earth elements play a role ofreducing needle-like ferrite and the amount of pearlite,densifing the lamellar space of pearlite......
exist in China[1], mainly located in Jiangxi, Fujian, Hunan, Guangdong, Yunnan and Guangxi province[2], and are the main resources of mid-heavy rare earth (RE) in the world[3]. For a long time, many... Leaching process of rare earths from weathered crust elution-deposited rare earth ore TIAN Jun(田 君)1, 2, CHI Ru-an(池汝安)3, YIN Jing-qun(尹敬群)2 1. School of Resources Processing and Bioengineering......
. In the last decade, several researchers focused on the rare earth elements. They have demonstrated that the treatments with aqueous solutions of rare earth salts, especially cerium salts... and the thinner rare earth film joining zinc substrate remained. Fig.4(a) shows the AES spectrum of the rare earth film treated for 5 min. The AES depth profile of major elements in the rare earth film......
Round Top Mountain rhyolite(Texas, USA), a massive, unique Y-bearing-fluorite-hosted heavy rare earth element(HREE) depositPINGITORE Nicholas1,CLAGUE Juan11. Department of Geological Sciences, The University of Texas at El Paso摘 要:Round Top Mountain in Hudspeth County, west Texas, USA is a surface-exposed rhyolite intrusion enriched in Y and heavy rare......
Round Top Mountain rhyolite(Texas, USA), a massive, unique Y-bearing-fluorite-hosted heavy rare earth element(HREE) depositPINGITORE Nicholas1,CLAGUE Juan11. Department of Geological Sciences, The University of Texas at El Paso摘 要:Round Top Mountain in Hudspeth County, west Texas, USA is a surface-exposed rhyolite intrusion enriched in Y and heavy rare......
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Influence of Rare Earth Elements on Microstructure and Mechanical Properties of Mg-Li Alloys Liu Bin1,Niu Zhongyi1,Wang Tao1,Zhang Milin1 (1.College of Materials Science and Chemical Engineering... of the laminar spacing and causes refinement of the microstructure. Therefore, this compound improves the strength of alloys at a high temperature. Key words:Mg-Li alloys; high temperature properties; rare......
Preliminary Study on Enrichment Law of Associated Rare Earth Elements in High-Sulfur Bauxite from Guizhou刘志红,岳紫龙,张覃,卯松,成奖国,聂光华,牛芳银摘 要:The Inductively Coupled Plasma-mass Spectrometer (ICP-MS) was used for measuring the content of rare earth elements in Guizhou high-sulfur and high-silicon bauxite ore and products of mineral processing. The results show......
