Abstract: This paper summarized the operation data of China’s titanium dioxide industry in 2023, including production capacity, output, market apparent demand, capacity concentration and so on. The recent growth trend of titanium dioxide production capacity and the corresponding changes in the supply and dema...
Abstract: Owing to the lack of systematic research on electrochemical behaviors and unclear high-temperature oxidation resistance characteristics of Ti-Al alloys prepared from low-valence titanium chlorides slurry by the electrochemical reduction in molten salt, the electrochemical workstation and differentia...
Abstract: Based on the severe preparation conditions, large particle size and poor conductivity, a new method to prepare sodium vanadium phosphate was proposed. By the formation of alkaline vanadium compounds, vanadium hydroxyloxide, and the in-situ anions exchange reactions between PO43–, F– and OH–, nano va...
Abstract: In order to further explore the advantages of hollow electrode technology in titanium slag electric furnace smelting process, based on the actual electrode size of 25.5 MW titanium slag electric furnace, the mathematical models of hollow and solid electrode arc were established, and the distribution...
Abstract: Using the graphite powder as a reducing agent, the phase transformation and electrical resistivity of the reduced products during the reduction process of carbon-containing ilmenite concentrate pellets were studied. The XRD analysis results indicate that the reduction process of carbon-containing il...
Abstract: With industrial titanyl sulfate solution as raw material, the hydrolysis seeds were prepared by sodium hydroxide solution neutralization method, which is commonly used in titanium pigments production by sulfuric process. And under different raw material indexes and process parameters, the changes of...
Abstract: China has developed the largest titanium industry system at present in the world, focusing on deepening the application and service behavior of titanium and titanium alloys, and vigorously developing new surface treatment technologies to improve the life of materials. Among them, micro-arc oxidation...
Abstract: In this paper, single-pass multi-layer Ti6Al4V alloy specimens were prepared by laser wire-feed additive manufacturing technology. The effects of laser power, scanning speed and wire feeding speed on the microstructure, tensile properties and impact properties of Ti6Al4V alloy were systematically st...
Abstract: TA15 rods with the diameter of 100 mm and 200 mm were produced by free forging and radial forging respectively. In this study, the effects on the microstructures and mechanical properties of TA15 rods were investigated. It is shown that there are dramatic differences in the microstructures at differ...
Abstract: The flow behavior of melt in vacuum consumable arc melting affects the solidification characteristics of ingots. Direct observation of the melt motion is difficult, so revealing the flow behavior of the melt by simulation is crucial. In this paper, a self-developed three-dimensional simulation model...
Abstract: Using the Hopkinson pressure bar test system to conduct room temperature dynamic compression experiments for cylindrical samples, the formation characteristics of adiabatic shear bands and the microstructure of Ti-1023 titanium alloy under different heat treatment regimes were studied. The results s...
Abstract: In this paper TA2 plate of 3 mm × 3 m × 7 m and Q235 steel plate of 9 mm × 3.2 m × 7.2 m are used as the clad plate and the base plate, respectively, large-sized TA1-Q235 titanium-steel clad plates were prepared with four different components of explosives and the shear strength and interface bondin...
Abstract: At present, the manufacturers of titanium dioxide produced by sulfuric acid process titanium dioxide face the problem that sublimed sulfur in the acid hydrolysis tail gas clogs the pipeline, which affects the continuity of the production of titanium dioxide by this process. In this paper, XRD, SEM a...
Abstract: In view of the high sodium content in vanadium extraction tailings, which leads to the difficulty of returning to the sintering-blast furnace process for recycling, herein we proposed a calcification reduction sodium removal technology route for vanadium extraction tailings based on coal-based rotar...
Abstract: In order to improve the phosphorus removal effect of steel slag, alkali leaching pretreatment was used and residual sludge was added to strengthen the preparation of alkali leaching slag–montmorillonite–sludge composite steel slag ceramic particles. The phosphorus removal performance and mechanism o...
Abstract: Emphasis was placed on the centrifugal granulation process and gas quenching granulation process during the dry granulation process. Due to the high-temperature transient process of granulation and crushing of blast furnace slag, it is difficult to monitor its specific change process solely through ...
Abstract: Well keeping physicochemical properties of tundish slag during continuous casting is of great significance to stabilize the cleanness of molten steel. In this study, the physicochemical properties of tundish slag for high carbon steel bloom in the process of continuous casting were tested and studie...
Abstract: Based on the principal component regression analysis of the factors affecting the yield strength of EH36 offshore steel, combined with the solid solution precipitation calculation of composite precipitation phase and the classical precipitation kinetics theory, the main factors affecting the yield s...
Abstract: In order to study the influence of rare earth La addition on the type and distribution of inclusions in FeCrAl alloys, based on thermodynamic analysis, the three-dimensional morphology and composition of inclusions were observed and analyzed by SEM-EDS, and the size and quantity of inclusions were s...
Abstract: The effects of heating temperatures on the prior austenite grain size, microstructure and mechanical properties of X80M pipeline steels with a large wall thickness were investigated in this paper. The results showed that the heating temperature has a great effect on the drop weight tear test (DWTT) ...
Abstract: The viscous flow characteristics of slag are closely related to the stability of the blast furnace. In this paper, the viscosity and melting temperature of chlorine-containing high-titanium slag (CaO-SiO2-MgO-Al2O3-TiO2-CaCl2) were studied, and their structural evolution was analyzed by Fourier tran...
Abstract: This study focuses on the tensile properties of GH4141 superalloy tested at room temperature, 300 ℃ and 500 ℃, respectively. The tensile strength obtained at high temperatures of 300 ℃ and 500 ℃ with serrated stress-strain curves are lower than that obtained at room temperature. In addition, the ten...
Abstract: A thermodynamic Thermo-calc software was used to calculate the precipitation behavior of second phase in vanadium-bearing high-speed railway wheel steel. The composition of equilibrium phase in low-carbon wheel steel and the influence of temperature and vanadium content on the precipitation of the s...
Abstract: The static and dynamic mechanical properties of three kinds of laser welded joints under tensile, shearing and peeling conditions were tested, and the microstructure characteristics and hardness distribution of the spot welded joints were analyzed. The results show that the shape of solder joints is...
Abstract: The rail in the high altitude and high latitude regions faces the low temperature service environment. The rolling wear and damage behaviors under low temperature are the significant factors influencing the rail service safety. The wear and rolling contact fatigue (RCF) damage laws of pearlite rail ...
Abstract: In the alternate wet and dry environment of sodium sulfite solution, periodic corrosion tests were carried out for both the newly developed anti-seismic rebar resistant to industrial atmospheric corrosion and reference HRB400 ordinary rebar, in order to investigate its corrosion behavior in the simu...
Abstract: In order to explore the mechanism of effect of tellurium modification on the machinability of non-quenched and tempered steel (NQTS), a sulfide modification test of 38MnVS NQTS with tellurium was carried out, and effect of tellurium modification on morphology of sulfide and machinability of steel wa...
Abstract: The evenness of solidification structure and solute distribution in the continuous casting billet of 20CrMnTi gear steel was experimentally investigated, and the symbiotic relationship and formation mechanism of coarse equiaxed dendrites and spot segregation were proposed. The control strategy on th...
Abstract: The inspection standard for non-metallic inclusions (GB/T 10561-2023) has been revised. In order to more precisely implement the revised standard, in this paper, we provide a detailed analysis on the revised contents of the new standard GB/T 10561-2023 “Determination of Non-metallic Inclusion Conten...
