Abstract: High-purity V2O5 powder was used as raw material and carbon powder was used as reducing agent. The process of preparing metals by carbothermal reduction was studied, and the effects of the amount of carbon, temperature, vacuum degree and reduction time on the products were discussed. The results sho...
Abstract: Due to the high price, large particle size and poor conductivity of vanadium based polyanion compounds, a new type of sodium ferric vanadium phosphate material was prepared by doping iron element to partially replace vanadium element. The phase information and sodium storage properties of sodium fer...
Abstract: In order to solve the problems of low valuable metal yield and high production cost in the process of ferrovanadium production, this paper proposed the use of aluminum ash as a reductant to directly reduce the vanadium-rich slag for the preparation of ferrovanadium alloys. The effect of different re...
Abstract: The molten salt chlorination method is a technique developed specifically for the preparation of titanium tetrachloride using high-calcium magnesium titanium slag materials. During long-term production practices, it has been observed that improper control of the composition in the chlorination furna...
Abstract: The arc characteristics inside the titanium slag electric arc furnace (EAF) play a crucial role in the melting and reduction of furnace materials. In this study, a method combining fluid mechanics and electromagnetic field was employed to establish a mathematical model for the arc region inside the ...
Abstract: The wettability and dispersion of titanium dioxide in water is very important for the inorganic coating and application performance. In this study, the relationship between the surface structure and the water wettability and dispersion of titanium dioxide treated with zinc and aluminum salts was stu...
Abstract: This paper reviews the development status of high-temperature titanium alloys resistant to 600 ℃ and above in domestic and foreign situations, and summarizes the composition and properties of IMI834 from UK, Ti-1100 from USA, BT36 from Russia and Ti60, TG6, Ti600, Ti65 and Ti750 from China. The main...
Abstract: Bismuth vanadate (BiVO4) has attracted considerable attention in photocatalysis due to its cheap and easy availability, mild and simple preparation conditions, narrow bandgap (～2.4 eV), outstanding photoresponse ability, and excellent stability. A fishbone like bismuth vanadate/graphene (BiVO4/GO) c...
Abstract: TiAl based intermetallic compounds have attracted widespread attention of domestic to international researches due to their lightweight, high specific strength, and excellent high-temperature performance, and have been applied in key fields such as aerospace and aviation, etc. However, due to their ...
Abstract: At room temperature, quasi-static compression and dynamic impact tests were conducted on titanium alloy TA31 by using UTM5305 universal testing machine and ALT1000 split Hopkinson pressure bar device. Based on the stress-strain curves attained from experiments, the strain hardening effect, strain ra...
Abstract: Binary BiOCl/BiVO4 and ternary BiOCl/BiVO4/diatomite photocatalysts were in situ prepared by liquid phase precipitation using bismuth nitrate, ammonium metadadate, potassium chloride and diatomite as raw materials, and the phase structure and photocatalytic properties of the composites were characte...
Abstract: In order to study the evolution law and mechanism of titanium adiabatic localization shear band under cold rolling conditions, conclusions were drawn by exploring and analyzing the cold rolling process. Firstly, the morphology of the shear band was analyzed, followed by the microhardness, and finall...
Abstract: In order to promote the green development of manufacturing industry, the comprehensive recycling and utilization of waste vanadium catalysts has broad prospects, and is an urgent need to realize the circular economy of vanadium industry. Exploring a new process with low pollution, low energy consump...
Abstract: The surface modification of ilmenite with sodium chlorite was carried out to enhance the adsorption effect of collector. The mechanism of sodium chlorite modification was investigated by microflotation test and zeta potential. The results of microflotation test showed that the recovery of ilmenite i...
Abstract: By means of chemical multi-element analysis, phase analysis, X-ray diffraction analysis, optical microscopy, MLA and other modern testing methods, this paper studied in detail the chemical composition, mineral species and content, microcomponent analysis of energy spectrum for chromium-containing mi...
Abstract: The mix ratio of granulated blast furnace slag self-compacting concrete was designed based on the full calculation method. By studying its working performance to determine the final mix ratio and test its compressive strength, and then use the GM (1,1) grey prediction model can predict its compressi...
Abstract: In this paper the development history and status quo of non-quenched and tempered steel for making auto parts worldwidely had been described, and the technologies such as strengthening & toughening, sulfide form and distribution control, and material segregation control had been highlighted. The...
Abstract: In view of the bulging deformation of slab during continuous casting, in order to eliminate fluctuation of the mold liquid level by means of reducing bulging strain at the boundary of two phases of the casting stream, considering influence of contact arc length between roller and casting stream on t...
Abstract: During the research and development of new hot end materials for automobile exhaust system, annealing experiments, grain coarsening resistance experiments, aging resistance experiments, high temperature tensile and high temperature creeping experiments were carried out on the experimental steels in ...
Abstract: According to the solid solution thermodynamic calculation of the multi-composite precipitated phases and the classical nucleation growth kinetic theory, the deposition and precipitation of carbides in austenite (γ) and ferrite (α) phases in Ti-Mo, Ti-Nb-Mo and Ti-Nb-Mo-V composite microalloyed-steel...
Abstract: Based on the base chemistry of Q345GNH steel, the steel samples with different Cr (mass fraction of 0.5%, 2%, 3%, 4% and 5%) and Ni (mass fraction of 0.5% and 1%) contents were prepared and their performances were compared by series of tests. Meanwhile, the effect mechanism of Cr and Ni on propertie...
Abstract: Bismuth tin alloy is thought suitable as a cooling media after comparing it with common low melting point metals. Thus, the maximum cooling rate and corresponding temperature cooling characteristics of bismuth tin alloy at different temperature states were characterized by using a cooling medium cha...
Abstract: Hot compression test of Super304H austenitic steel was carried out by using a MMS-100 thermal mechanical simulator at 900～1200 ℃ and 0.1～10 s−1. Based on the true stress-true strain test data, the Zener-Hollomon constitutive model of the studied steel was established by using a strain compensation m...
Abstract: GH4169 alloy was obtained by a specific metallurgical process and tensile experiments were carried out at different temperature gradients of 550 ℃, 650 ℃ and 750 ℃ and different stress levels of 590 MPa, 690 MPa and 790 MPa. The mechanical properties of the alloy were obtained, which in turn provide...
Abstract: Selective laser additive manufacturing (SLM) fabricated metal matrix composites have many advantages such as flexible structure and controllable composition. In this paper, 316L stainless steel was used as the matrix material and Al0.5CoCrFeNiTi0.5 high entropy alloy (HEA) powder was used as the par...
Abstract: In order to fully exploit the potential role of vanadium-Nitride alloy on high-speed steel, the evolution of solidification structure and hardness of M2 high-speed steel with vanadium-Nitride alloy addition had been investigated by using a rapid solidification melt-sampling apparatus, where the vana...
Abstract: The bismuth-containing free-cutting steel served as an environment-friendly material has a broad application prospect. Bismuth was alloyed by preparing bismuth ferromanganese alloy, which was then added to the molten steel in the process of vacuum induction melting. After casting the melt and hot ro...
Abstract: The microstructure, hardness, tensile strength, impact and failure position of the welded joint of 15Cr1Mo1V steel for high temperature reheat steam pipeline, which has been operated for about 130000 hours in a power plant, were studied and analyzed. The results show that there are the polygonal fer...
