Abstract: The overall situation of vanadium industry in 2022 was elaborated and analyzed from the global vanadium resources and production capacity, the output, supply and demand, import and export, as well as the market prices. Based on the current operating situation of the vanadium industry at home and abr...
Abstract: The vanadium-titanium resource value chain, vanadium-titanium technology industry chain and industrial agglomeration development status of Panzhihua were comprehensively reviewed. The existing problems and development prospects of vanadium-titanium industry were analyzed. Combined with the construct...
Abstract: In the typical calcium calcination–acid leaching process of converter vanadium slag, the leaching solution contains many impurities, and the change of vanadium phase in this process will directly affect the overall recovery rate of vanadium. It is a great challenge to determine the migration and tra...
Abstract: Ammonium vanadium oxides are promising cathode materials for aqueous zinc-ion batteries due to their lightweight and high capacity, however, the controlled synthesis still remains a challenge. A series of ammonium vanadium oxides with different phases and morphologies were successfully synthesized b...
Abstract: Vanadium is existed as low-valence in the vanadium-chromium residue, it is hard to leach out in alkaline medium, high-energy consumption is accompanied by roasting-leaching process. In this paper, ultrasonic was introduced to enhance the leaching process of vanadium-chromium residue to oxidize the l...
Abstract: The effects of phosphorus, iron, manganese, silicon and vanadium in the qualified solution during vanadium precipitation on the composition of vanadium pentoxide were investigated through multivariate correlation analysis using Pearson coefficient statistics, probability density analysis and probabi...
Abstract: For titanium alloys, the type and content of alloying elements have a great impact on the properties of the alloy. For β-titanium alloy, the main problem is how to select β-stable elements and control the addition of β-stable elements. In this paper, the influence of different alloyed elements on β-...
Abstract: To prepare the high-purity TiSi2 and eutectic Si-Ti alloys, the vacuum electromagnetic directional solidification technique was used to separate and purify Ti-Si alloys in this study. The results show that the vacuum electromagnetic directional solidification can effectively purify the Ti-Si alloys....
Abstract: Taking high strength and wear resistance β titanium Ti-Al-Mo-V-Cr alloy as the research object, the hot deformation behaviors with varying hot working conditions were studied, and the influence of heat treatment on the microstructure and mechanical properties of cold rolled sheet was analyzed. The r...
Abstract: TiC particles reinforced high chromium cast iron matrix composites were prepared by casting sintering method. The effects of reinforced particles on the microstructure and wear behavior of the composites were studied by EDS and SEM. The results showed that the Rockwell hardness (HRC) of the composit...
Abstract: In order to further improve the properties of HA/Ti composite materials, using HA powder and commercial Ti powder as raw materials, adding a certain amount of different rare earth complexes (CeO2, LaF3 and SrO), a rare earth reinforced HA/Ti biological composite material was prepared by powder metal...
Abstract: The 2% TiC/6061Al composites were prepared by low-speed horizontal ball milling and spark plasma sintering ( SPS ). The effects of different sintering temperatures and pressures on the density, microstructure and mechanical properties of the composites were studied by optical microscope, scanning el...
Abstract: The floating titanium concentrate grade of a concentrator in Panxi area is 46.84%, among which gangue minerals SiO2 and CaO are not conducive to the subsequent chlorination process of titanium dioxide. Adding inhibitors to acidified sodium silicate, sulfuric acid, sodium silicate, sodium fluorosilic...
Abstract: Aiming at recovery of valuable elements such as Fe, P, Mn and Si from Bessemer steel slag and utilization of steel slag, the thermodynamic conditions and influencing rules of thermite reduction and recovery of valuable elements from Bessemer steel slag were analyzed by a Factsage8.2 software thermod...
Abstract: In order to promote the efficient comprehensive utilization of vanadium-titanium iron ore tailings (VTIOTs), the basic properties and firing mechanism of high-strength fired water permeable bricks (HSFWPB) containing VTIOTs were investigated by using orthogonal test method, X-ray diffraction (XRD), ...
Abstract: In this study, the removal of iron impurity contained in the industrial sulfuric acid leaching titanium gypsum was investigated, which leads to effective improvement of purity and whiteness of titanium gypsum, providing sufficient raw materials for the development and utilization of titanium gypsum ...
Abstract: Calcium ferrite is main bonding phase in high-basicity sinter, its formation is closely related to the sinter quality, and the appropriate amount of bonding phase is also an important factor of energy saving and carbon reduction in the sintering process. In this work, mono-calcium ferrite (CF) as an...
Abstract: In view of the physical and chemical properties of high-grade vanadium titanium magnetite, single firing contrast experiment, different substitute ratio experiment of high-grade ore and orthogonal experimental study on parameter optimization of sintering technical and economic indexes of sintering f...
Abstract: The evolution of microstructures and properties of 1800 MPa ultra-high strength hot stamping steels under different austenitizing temperatures and holding times were experimentally studied in this paper, and the optimum hot stamping austenitizing process was established. The results show that when t...
Abstract: The new CaO-Al2O3 based mold fluxes can effectively inhibit the interfacial reaction between Al and slag components in high-aluminum steel casting. However, there were still some problems in the casting process, such as strong crystallization performance and uneven heat transfer. Fluxing agent was o...
Abstract: The aviation stainless steel 0Cr17Ni4Cu4Nb has excellent characteristics and is widely used in important parts of various machines. The machining process of these parts is accompanied by large strain, high temperature and high strain rate. Based on this coupling relationship, a constitutive model th...
Abstract: The heat treatment of solution + aging process was conducted on Monel K500 alloy. For investigating the effect of aging temperature on the microstructure and properties of Monel K500 alloy, the micro-hardness and tensile properties were measured and the microstructure of the samples was analyzed by ...
Abstract: In the current study, the sharpness test and microstructure characterization for the 30Cr13 cutter under the regime of quenching and tempering processes was performed to investigate the relationship between distribution and type of carbides and sharpness of cutting tools. After the tempering process...
Abstract: Banded structure defects often appear in low carbon microalloyed steels during rolling process, which have a great impact on the product quality and service properties. In this study, Q345 hot-rolled slab in a plant was selected as the research object, and the evolution of the banded structure in di...
Abstract: The mechanical properties of CoCrFeNiMn high entropy alloys (HEAs) with different cross section sizes were investigated by molecular dynamics simulation under tensile loading. Modified embedding atomic potential was employed to describe the interactions between Co, Cr, Fe, Ni and Mn atoms. The simul...
Abstract: High speed tensile test, comprehensive forming test, field emission scanning electron microscope (SEM), X-ray diffraction (XRD), electron backscatter diffraction (EBSD) and other characterization methods were used to study the differences of microstructure and properties between DH780 and DP780 cold...
Abstract: A 22.5 × 9.0 wheel rim made of Ti and Nb precipitation strengthened 600 MPa wheel steel was manufactured by continuous flash butt welding process to. The lap joint of rim and spoke was welded under gas shielded welding process. The flash butt welded joint of the rim cracked during the flaring proces...
Abstract: A Thermo-Calc thermodynamic calculation software was used to conduct thermodynamic analysis on the phase transformation, primary carbide phase type, and primary carbide precipitation temperature during solidification process of bearing steel. Based on both Scheil segregation model and Goto model, th...
