Abstract: This paper systematically summarizes the development history and current situation of China’s titanium industry from the aspects of titanium resource distribution, production and processing, application fields, and distribution pattern of related enterprises. The paper analyzes the current problems ...
Abstract: Vanadium and chromium commonly coexist in nature as associated minerals in vanadium-titanium magnetite, which presents a significant technical challenge for their efficient separation during resource extraction. In light of this issue, several commonly employed vanadium and chromium separation techn...
Abstract: The acidic calcified vanadium solution from Pangang Xichang Vanadium Plant was the research object in this study. In response to its characteristics of low acidity, high vanadium content, and difficulty in impurities removal, an extraction process was adopted to specifically remove Mn2+, Ca2+ and Fe...
Abstract: In view of the increasing environmental protection and energy saving requirements of vanadium extraction from stone coal year by year, a clean process for V2O5 extraction by atmospheric pressure wet method including water leaching, extraction separation, vanadium precipitation and calcination was de...
Abstract: In the production process of titanium dioxide by sulfuric acid method, the selection of salt treatment agents has a significant impact on the surface properties of rutile titanium dioxide crystals. Thus it is necessary to carry out an in-depth study to reveal the differences in the surface propertie...
Abstract: The effect of pure Ti alloyed with different Ru content on the microstructure and electrochemical behaviour was studied for the need of further improvement in corrosion resistance and conductivity of titanium bipolar plates in proton exchange membrane water electrolysis environments. Results indicat...
Abstract: Since the contacting ultrasonic detection results indicated some defects existed in a bar of Ti-6Al-4V alloy, researching work had been carried out using optical microscope, scanning electron microscope metallographic analysis, microhardness, energy spectrum, electron probe, backscatter electron dif...
Abstract: Commercially pure titanium (CP-Ti) was successfully fabricated by 2 passes of equal channel double angular pressing (ECDAP) process under BC route. The electrochemical corrosion behaviors of CP-Ti before and after ECDAP were also tested and analyzed in a 3.5%NaCl solution. The variation laws of circ...
Abstract: Pure titanium tubes with different cold rolling deformations were annealed at different temperatures (450、470、490 ℃) to investigate the influences of deformations and annealing temperatures on the microstructures, texture evolution and mechanical properties of tubes. It is shown that the microstruct...
Abstract: Shape bending often occurs during the production process of titanium alloy bars, and thermal tension straightening is an effective straightening method. In this study, the thermal tension straightening model of TC4 bar was established by using the finite element simulation software ABAQUS. The influ...
Abstract: TC4 is a α+β duplex titanium alloy with low density, high specific strength, good weldability and corrosion resistance, which is widely used in weapons, aviation, aerospace, ships and orbits, and is one of the important materials for product lightweight. MIG-MAG welding was used to study the influen...
Abstract: The industrial technologies of tetragonal barium titanate mainly include solid-state method and hydrothermal synthesis method, but there are problems such as large particles, uneven particle size distribution, and low tetragonal phase content. Tetragonal barium titanate was successfully prepared by ...
Abstract: High-titanium blast furnace slag, as an ordinary industrial solid waste, is characterized by low activity and low utilization rate due to its high TiO2 content and predominantly crystalline and stable mineral components, resulting in its accumulation. To better address the issues of low activity and...
Abstract: To improve the workability and mechanical properties of high titanium slag aggregate concrete, this paper proposed the use of magnetized water for its preparation. The study investigated the effects of different flow rates of magnetized water on the workability and mechanical properties of high tita...
Abstract: This study focused on a specific case - titanium concentrate from Panzhihua. Detailed process mineralogy research was conducted using chemical element analysis, AMICS, EPMA, XRD, SEM and optical microscope identification. The research reveals that the ilmenite concentrate contains 48.03% TiO2 and 33...
Abstract: Batch grinding experiments of vanadium titanium-magnetite (VTM) with different grinding times before and after microwave treatment were carried out. The m-order grinding kinetics model of untreated and microwave treated VTM was established, and the effects of particle size and grinding time on the g...
Abstract: In the process of continuous casting, the distortion of molten steel flow in mold caused by nozzle clogging is a key factor affecting the quality and production efficiency of castings. To solve this problem, a multi area controllable electromagnetic braking (MAC-EMBr) technology is proposed to impro...
Abstract: Rare earth Ce treatment is a hot topic in the modification of solidification microstructure for super austenitic stainless steel. In this study, the solidification phase structure, evolution of inclusions, and element segregation behavior of a 500 kg scale Ce-treated 7Mo super austenitic stainless s...
Abstract: In order to calibrate the solidified end position of the 50CrV spring steel billet with 240 mm×240 mm section and determine the reasonable position of electromagnetic stirring at the solidification end, the nail shooting experiment was carried out on the Xianggang billet continuous caster. The resul...
Abstract: The near-net forming process such as additive manufacturing provides technical paths for the preparation of complex parts of refractory high-entropy alloys, and also puts forward higher performance requirements for their powders. In this paper, the composition design criteria of refractory high-entr...
Abstract: Inclusions in superalloys are the main factors affecting the metallurgical quality and performance of the alloys. The control methods of inclusions in the vacuum induction melting process of GH4169 had been investigated from two aspects: melting process and raw material. Firstly, three batches of GH...
Abstract: The effects of Ca treatment and Ce treatment on the steel inclusions during the steelmaking process of Ce-contented NM450 steel were studied. The evolution process of inclusions in steel was analyzed by Scanning electron microscope-energy dispersive spectrometer ( SEM-EDS ) equipped with AZtecFeatur...
Abstract: Creep damage equation construction and finite element simulation were used to analyze the high temperature creep behavior of GH3128 alloy at 950 ℃. Firstly, the creep damage equation was constructed by combining the K-R model, the Sinh model and the Liu-M model. Then the life prediction and damage b...
Abstract: The microstructure and mechanical properties of the newly developed HB550 low-alloy high-strength wear-resistant steel were studied through optical microscope, scanning electron microscopy, tensile tests, and Vickers hardness tests. Meanwhile, the sliding wear behavior and the friction coefficient o...
Abstract: In this study, different contents of micro-alloying elements Nb and V were added to X80 pipeline steel. OM, SEM and TEM were used to observe the microstructures and precipitates. Tensile tests and Charpy tests were conducted to obtain the mechanical properties. Thermo-calc software was used for phas...
Abstract: This research is to investigate the mechanical properties of different carbon steel materials at different temperatures. The simulation model was established by using molecular dynamics, and the regression model was established by the three-factor multi-level orthogonal test and response surface met...
Abstract: A low-cost 780 MPa grade cold-rolled dual phase steel with high formability was designed and developed based on the equipment characteristics of the production line, and the effects of continuous annealing on the microstructure and properties of the cold rolled products were studied. The results sho...
Abstract: In order to achieve the goal of enhancing the pulverized coal injection (PCI) rate, along with its stability and uniformity in vanadium-titanium blast furnaces, ultimately reducing energy consumption, a pilot-scale experimental device was developed, equivalent in scale and capacity to a 1000 m3 blas...