Abstract: TiO2 was prepared by a process of NaOH decomposing-HCl leaching with titanium slag from Panzhihua as raw material.The phase transformations of titanium slag during NaOH decomposition were analyzed using XRD.The results suggest that the decomposition of titanium slag by NaOH is a multistage process,v...
Abstract: The preparation of TC4 alloy powders for laser 3 D printing(15~45 μm) via electrode induction melting gas atomization(EIGA) method was studied in this paper.The morphologies,phase compositions,particle size distributions,apparent densities and flowabilities of the powders were characterized by scann...
Abstract: Currently,the vanadium solution used for vanadium extraction,coming from the integrate process of sodium roasting and then water leaching of vanadium slag,has relatively lower vanadium concentration.It will produce a large amount of toxic waste water containing V5+,Cr6+,NH4+,SO42- and Na+ etc,which ...
Abstract: The alkaline solution containing vanadium was used as the raw material,which was from the process of sodium roasting for vanadium slag.After the removal of silicon and phosphorus from the solution,sodium sulfate and chromic anhydride were added into the solution to prepare vanadium and chromium cont...
Abstract: Pangang Group Mining Company is the largest supplier for titanium concentrate in China,which has solved the technical problems of titanium recovery through scientific and technological innovations.However,the recovery rate of ilmenite below-0.038 mm is very low,leading to the high content of-0.038 m...
Abstract: The effect of phosphoric acid on the pH of metatitanic acid,the transformation of crude product into rutile,the achromatic force and the luminance of the samples was studied using the metatitanic acid hydrolyzed from titanium solution of ilmenite as raw material.The results show that the phosphate r...
Abstract: Lithium titanate(Li4Ti5O12) samples were synthesized via mechanical force-assisted solid phase route using titanium dioxide and lithium carbonate as the initial titanium source and lithium source,respectively.The phase structure,morphology,particle size and electrochemical properties of the prepared...
Abstract: Experimental study on the preparation of Ti-Al based intermetallic alloy from selective catalytic reduction(SCR) Ti-based denitration catalyst was first conducted by using aluminothermic reduction followed with the vacuum electromagnetic levitation melting.Using SEM and XRD analyses,it is found that...
Abstract: Porous Ti-5 Cu alloy with anisotropic porous structure was prepared by powder metallurgy method using 40% of spherical stearic acid as the space holder agent,and the effect of sintering process on the microstructure and mechanical properties of the porous Ti-5 Cu alloy was studied.The results show t...
Abstract: At temperature of 55~60℃ and pH=9.5~10.0,inorganic surface treatment was carried out with sodium metaaluminate for 30 nm titanium dioxide.The particle size distribution,zeta potential,UV-visible spectrum and thermal endurance of the sample before and after surface treatment were compared and analyze...
Abstract: Vanadium and titanium elements were added to modify the common NM450 steel.The results show that compared with those of NM450 steel,the weight loss,the depth and area of wear marks of NM450-0.2 V specimens with vanadium added are reduced by 5.36%,11.11% and 27.27% respectively,and the weight loss,th...
Abstract: In this paper,3Cr2W8V die steel for casting of automotive parts was modified by Ti-Sr composite addition,and the results of high temperature wear test and thermal fatigue test were analyzed.The results show that the addition of Ti and Sr has an important effect on the wear resistance and thermal fat...
Abstract: The enamel coating was prepared from the titanium tailings in Panzhihua area,and the electrochemical corrosion behaviors of the enamel coating in 30% HCl solution were studied using potentiodynamic polarization curve(Tafel) and electrochemical impedance spectroscopy(EIS).The results show that the am...
Abstract: To comprehensively utilize the vanadium titanomagnetite tailings from Chengde area,the high strength concrete products were prepared using the tailings,cement clinker,blast furnace slag and gypsum as raw materials.The effects of fineness of tailings,dosage of tailings and water reducer on the compre...
Abstract: Iron-carbon solid-solid reduction reaction has always been a challenge for researcher,therefore,studying the solid-solid reaction kinetics has important practical significance.The mechanical grinding method was used to coat the magnetite with carbon and the differential thermal analysis was conducte...
Abstract: Effects of the chemical compositions and phases of the slags on desulphurization of molten iron and semi-steel were studied.Sulfur content in the desulfurized slag is 4~5 times higher than those of BF slag and vanadium-extracting slag.Sulfur exists in the form of CaS in the desulfurization slag,no M...
Abstract: In this paper the Factsage7.0 software had been used to calculate the precipitation of titanium-bearing inclusion in the temperature range of 800~1 600℃. The size and morphology of titanium-bearing inclusion of steel with/without adding rare earth had been observed by scanning electron microscopy(SE...
Abstract: Analysis of controlling silicon content for low carbon and low silicon steel had been conducted from various aspects in this paper.Thermodynamics calculation results indicates that when in low-carbon and low Silicon steel and responding balanced silicon is,which implies that silicon pick-up is inevi...
Abstract: The X70 QPSL2 seamless steel pipes with wall thickness S(>25 mm) for high pressure gas transmitting has been successfully developed by suitable alloyingdesign,integrated smelting control technology,controlled forging-compression ratio rolling and controlled cooling process,and external spray and ...
Abstract: An experimental study was carried out on the cyclic ratcheting of HRB400Ⅲ aseismic reinforced bars subjected to asymmetric cyclic loading at room temperature.The effects of stress amplitude,mean stress and stress rate on HRB400Ⅲ aseismic reinforced bars were investigated completely.The experimental ...
Abstract: The influence of alloying elements on equilibrium precipitation phases of KT5331 were studied by Factsage software and experiment.The results show that the amount of M23C6 carbide is determined by C content in steel.The fluctuation of Cr,Mo content in steel has effect on precipitation temperature of...
Abstract: The hot ductility of high Nb and Ti micro-alloyed steel had been investigated through the high temperature tensile test and optical microscopy,scanning electron microscopy,transmission electron microscopy and micro-hardness tester.The results show that the relationship between the rate of reduction ...
Abstract: In order to study corrosion properties of Nb microalloying high speed rail steel, heavy rail U75V steel (Cr 0.45%) with different Nb content had been investigated.The main causes of corrosion of high speed rail steel are explored by fitting curve analysis using CorrView electrochemical software base...
Abstract: The H13 steel was selected for laser coating to obtain a laser cladding coating,and the microstructure and hardness were analyzed.The high temperature wear behavior of H13 steel coating was studied by pin-plate high temperature wear tester and compared with H13 steel substrate.The morphology,phase a...
Abstract: The heat treatment test had been conducted on 12 Cr13 stainless steel,and the metallographic structure and carbide morphology of the resulted samples were observed,and the corrosion resistance and pitting potential of the samples were tested.The results show that the salt spray corrosion resistance ...
Abstract: The wear test and thermal fatigue test of 3 D printed 5 CrMnMo hot forging die steel and traditional manufacturing 5 CrMnMo hot forging die steel were carried out in this paper and the wear resistance and thermal fatigue properties were compared and analyzed.The results shows that wear loss of 3 D 5...
Abstract: The microstructure of single-long line and double-edged line defects on the surface of hot-dip galvanized sheets and hot-rolled sheets produced in the same time were analyzed by means of scanning electron microscope(SEM) and metallography.The results show that the entrapment of protective slag cause...
Abstract: The technical progresses and features of the whole-process titanium sponge were presented in this paper,relied on the largest proportion of titanium resources in Panxi area and the scientific layout made by Pangang Group.Based on the advantage of the whole industrial chain,the high quality titanium ...
