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Mg alloy surface alloying layer fabricated through evaporative pattern casting technology CHEN Dong-feng(陈东风), DONG Xuan-pu(董选普), ZHANG Xiong(张 雄), FAN Zi-tian(樊自田) State Key Laboratory... factors of surface alloying layer by evaporative pattern casting technology were investigated. A certain thickness alloying layer was formed on the surface of Mg-alloy matrix when the pouring temperature......
J. Cent. South Univ. (2017) 24: 1551-1559 DOI: 10.1007/s11771-017-3560-3 Alloying effects of V on stability, elastic and electronic properties of TiFe2 via first-principles calculations NONG Zhi... University Press and Springer-Verlag Berlin Heidelberg 2017 Abstract: The alloying effects of V on structural, elastic and electronic properties of TiFe2 phase were investigated by the first-principles......
Effect of temperature on mechanical alloying of Cu-Zn and Cu-Cr system ZUO Ke-sheng(左可胜)1, 2, XI Sheng-qi(席生岐)2, ZHOU Jing-en(周敬恩)2 1. School of Earth Science and Resources, Chang... alloying(MA) process of Cu-Zn system with negative mixing enthalpy, and promote MA process of Cu-Cr system with positive mixing enthalpy. As for Cu-Cr and Cu-Zn powders milled at -10 ℃, lamellar......
J. Cent. South Univ. (2018) 25: 526-533 DOI: https://doi.org/10.1007/s11771-018-3757-0 Preparation of α-calcium sulfate hemihydrate whiskers with high aspect ratios in presence of a minor amount... ratios, a minor amount of CuCl2·2H2O was used as the modifying agent in the process of hydrothermal treatment of calcium sulfate dihydrate (CaSO4·2H2O) precursor. The presence of 2.60×10–3 mol/L CuCl2......
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on ME20 mainly consists of MgF2, MgO, C and a small amount of CeF4. The good oxidation resistances of ZK60 and ME20 alloy melts may be caused by their major alloying elements Zr and Ce, respectively. Key words: ZK60 alloy; ME20 alloy; magnesium alloy melt; Mg melt; 1,1,1,2-tetrafluoroethane; alloying element; oxidation 1 Introduction Molten magnesium has an extremely high affinity for oxygen and high......
Microstructure transformation of carbon nanofibers during graphitization ZHANG Yong(张 勇)1, TANG Yuan-hong(唐元洪)1, 2, LIN Liang-wu(林良武)1, ZHANG En-lei(张恩磊)1 1. College of Materials Science...: The microstructures of vapor-grown carbon nanofibers(CNFs) before and after graphitization process were analyzed by high resolution transmission electron microscopy(HRTEM), Raman spectroscopy, X-ray diffractometry(XRD......
of the solder. However, the cooling behavior and solidified microstructure of the solder were affected by the concentration of the alloying elements. The wettability of the SCNG solder was improved with the doping of the alloying elements except Sb. The thickness of intermetallic layer was increased by the addition of the alloying elements and was related to the cooling behavior of the solder......
Trans. Nonferrous Met. Soc. China 24(2014) 1079-1085 Synthesis of one-dimensional carbon nanostructures and their application as anode materials in lithium ion batteries Jing-jing TANG, Juan YANG...: An efficient synthesis of carbon nanofibers by pyrolysis of as-prepared polypyrrole nanowires was reported. Under the subsequent KOH activation, a significant morphology variation was detected and the obtained......
="ChDivSummary" name="ChDivSummary">In the present work, mechanical alloying of a powder mixture of nickel and graphite(up to 15 wt%) was carried out in an attrition mill under a nitrogen atmosphere.The... the negligible solid solubility in the nickel–carbon system), thereby forming a supersaturated solid solution of graphite in a nickel matrix.The dissolved graphite occupied interstitial positions along......
