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J. Cent. South Univ. Technol. (2011) 18: 73-77 DOI: 10.1007/s11771-011-0661-2 Electrochemical synthesis, characterization and thermal properties of niobium ethoxide CAI Ya-nan(蔡亚楠)1, YANG Sheng...; 2. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: Niobium(V......
Rare Earths, Niobium and Tantalum Minerals in Bayan Obo Ore Deposit and Discussion on Their Genesis 张培善1,宋仁奎1,陶克捷1,杨学明1,杨主明1 (1.Institute of Geology and Geophysics, Chinese Academy of Sciences.... It is obviously that some minerals are strata minerals and some are post-strata minerals. The rare earths, niobium and tantalum minerals are exactly the post-strata minerals. In these minerals......
Static oxidation behaviour of silicide coating on niobium alloy at high temperature XIAO Lai-rong(肖来荣)1, 2, XU Liang-liang(许谅亮)1, 2, YI Dan-qing(易丹青)1, 2, LIU Hui-qun(刘会群)1, 2, CAI Zhi-gang(蔡志刚... coating is parabolic. The diffusion of Si leads to the phase transformation and evolution during the oxidation. Key words: niobium alloy; silicide coating; static oxidation; diffusion; phase......
THE ROLE OF NIOBIUM IN NICKEL-BASED SUPERALLOYS AND CHARACTERIZATION OF PM ALLOY EP741NP T. Carneiro1,D. Furrer2,J. Radavich3 (1.Reference Metals Co., Bridgeville, PA 15017, USA;2.Ladish Go., Inc., Gudahy, WI 53110, USA;3.Micro-Met Laboratories, West Lafayette, IN 47906, USA) Abstract:The role of niobium in nickel-based superalloys is reviewed. The importance of niobium as a strengthener......
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(4%-16%, mole fraction) were fabricated by vacuum non-consumable arc-melting method. The results indicate that the alloys contain niobium solid solution (Nbss), carbides (Nb2C, (Nb, Ti)C) and eutectic... different Ti contents, and morphology of Nbss changes from the cellular structure to dendrite. Key words: Nb-Ti-C alloy; carbide transformation; niobium solid solution ......
Trans. Nonferrous Met. Soc. China 24(2014) 2839-2844 Interfacial structure and mechanical properties of hot-roll bonded joints between titanium alloy and stainless steel using niobium interlayer Dong... bonding was carried out in vacuum between titanium alloy and stainless steel using niobium interlayer. The interfacial structure and mechanical properties were analyzed. The results show......
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)02-0501-07 Microstructure and texture of niobium foils fabricated by different rolling methods HUANG Yuanchun1, XIE Cheng2, TANG Jianguo2, DENG Yunlai2 (1. Institute of Light Alloy, Central South University... 410083, China) Abstract: Evolutions of microstructures and textures of niobium foils were studied by OM and ODF techniques, and the niobium foils processed by four different cold-rolling methods prior......
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