2018 Vol. 39, No. 3

Separating and Extracting of Vanadium and Titanium
Effects of Na2MoO4on the Properties of Negative Electrolyte of Vanadium Battery
CHEN Yong
2018, 39(3): 1-6. doi: 10.7513/j.issn.1004-7638.2018.03.001
Abstract(114) PDF(7)
Abstract:
Used as an additive for the negative electrolyte of vanadium battery,the effects of Na2MoO4 on electrochemical performances and stability of the electrolyte,and properties of the battery were studied. The results indicate that electrochemical activity of the negative electrolyte and diffusion coeffi...
Preparation of Metallized Pellets from Panzhihua Titanium Concentrate by Pre-reduction
Wei Guangliang
2018, 39(3): 7-11. doi: 10.7513/j.issn.1004-7638.2018.03.002
Abstract(196) PDF(3)
Abstract:
Aiming at the problems of high power consumption and low production capacity of titanium slag produced by direct use of titanium concentrate in smelting titanium slag.A new process for preparing metallized pellets from Panzhihua titanium concentrate,"internal carbon containing titanium concentrate p...
Research on Impurities Removal from Alkaline Solution Containing Vanadium and Chromium
JIANG Lin
2018, 39(3): 12-16. doi: 10.7513/j.issn.1004-7638.2018.03.003
Abstract(99) PDF(1)
Abstract:
Using the alkaline V-Cr solution obtained from sodium roasting of V-Cr slag as raw material,the contents of main elements like V and Cr,impurities such as Si and P in the solution were analyzed.The removal mechanisms of Si and P using aluminum salt in alkaline solution were discussed.The effects of ...
Influence of Particle Size on the Optical Properties of Titanium Dioxide Pigment
Liu Yong, Luo Zhiqiang, Liu Chan
2018, 39(3): 17-20. doi: 10.7513/j.issn.1004-7638.2018.03.004
Abstract(249) PDF(11)
Abstract:
The influence of particle size ranging from 210 to 260 nm on the pigment properties and hiding power of rutile titanium dioxide was studied.Scanning electronic microscopy(SEM) was utilized to characterize the particle size and morphology of titanium dioxide. The experimental results show that the ti...
Effects of Pre-adding Water on Structure of Metatitanic Acid
Chen Hua, Tian Congxue, Liu Haibo, Meng Junquan, Liu Huiling, Yang Dong, Zhu Yuxuan
2018, 39(3): 21-26. doi: 10.7513/j.issn.1004-7638.2018.03.005
Abstract(128) PDF(4)
Abstract:
Using low concentration of industrial titanyl sulfate solution as raw material,metatitanic acid was prepared via the self-seeded thermal hydrolysis sulfate process.The effects of pre-adding water on structure of metatitanic acid were investigated.The as-prepared samples were characterized by pigment...
Current State and Prospect for Preparation of Magnéli Phase Titanium Oxides
Wang Yici, Zhang Bao
2018, 39(3): 27-32. doi: 10.7513/j.issn.1004-7638.2018.03.006
Abstract(363) PDF(22)
Abstract:
Magnéli phase is a series of titanium sub-oxides with the general formula of TinO2n-1(4≤n≤10),which have excellent conductivity and great significance for battery research.At present,the main method for preparing Magnéli phase titanium oxides is high temperature reduction of TiO2 or its precursors.S...
Application of Vanadium and Titanium
Preparation and Properties of Ti/TiO2/BGC Bioactive Composite
Xu Ying, He Shiyu, Wang Huanhuan, Kong Fanbei
2018, 39(3): 33-39. doi: 10.7513/j.issn.1004-7638.2018.03.007
Abstract(92) PDF(1)
Abstract:
Nano-TiO2 layer was prepared by in-situ growth on pure titanium matrix via anodic oxidation method,then the bioactive glass coating(BGC) was clad on the nano-TiO2 layer through sol-gel method.Employing SEM,XRD,scratch test and human body fluid simulation test,the morphology and phase,biological acti...
Effect of Silver Content on Microstructure and Mechanical Properties of Porous Titanium
Zhao Chaoyong, Zhang Xuefeng, Zhang Lei, Chen Min
2018, 39(3): 40-45. doi: 10.7513/j.issn.1004-7638.2018.03.008
Abstract(170) PDF(1)
Abstract:
Using antibacterial silver as the alloying element and ammonium bicarbonate as the pore-forming agent respectively,porous titanium-silver alloys(Ti-Ag alloys) with different silver contents were prepared by powder metallurgy method.The effects of silver content on microstructure and mechanical prope...
TiO2Quantum Dots Modified g-C3N4and Its Photocatalytic Decoloration Performance
Si Yujun, Li Minjiao, Xiong Zhongping, Zhang Shulin
2018, 39(3): 46-50. doi: 10.7513/j.issn.1004-7638.2018.03.009
Abstract(108) PDF(2)
Abstract:
To further promote the photocatalytic performance of g-C3N4,TiO2 quantum dots were loaded on g-C3N4 by a pore impregnating method.The results show that the TiO2 quantum dots modification significantly influences the XRD patterns,surface parameters,particle size distribution and the visible light ads...
Effect of Preparation Method on Properties of TiNi Hydrogen Storage Electrode Alloy
Zheng Xin, Yang Yuling, Liu Ronghai
2018, 39(3): 51-54. doi: 10.7513/j.issn.1004-7638.2018.03.010
Abstract(81) PDF(1)
Abstract:
TiNi hydrogen storage electrode alloy was prepared respectively by four methods to improve its properties,and the cycling stability and electrochemical corrosion resistance of the alloys obtained were tested and analyzed.The results show that compared with the conventional induction melting,the vacu...
Effect of Vanadium Content on Wear and Corrosion Resistance of Magnesium Alloy for Mechanical Shell
Zheng Shuqin, Zhang Xiaohong
2018, 39(3): 55-58. doi: 10.7513/j.issn.1004-7638.2018.03.011
Abstract(94) PDF(2)
Abstract:
The microstructure,wear and corrosion resistance of magnesium alloy shell with different vanadium content were tested and analyzed.The results show that with increasing vanadium content from 0 to 0.7% of the sample,the grains are refined,and the wear volume decreases firstly and then increases.Meanw...
Effect of Friction Stir Processing on Properties of Titanium Alloy for Automobile
Zhao Fuli, Wang Yongjiang
2018, 39(3): 59-62. doi: 10.7513/j.issn.1004-7638.2018.03.012
Abstract(59) PDF(1)
Abstract:
The microstructure,mechanical properties and wear resistance of automotive titanium alloy at different friction stir processing parameters were studied.The results show that compared with those of titanium alloy before friction stir processing,the crystalline grains of the automobile titanium alloy ...
Resources Environment and Energy Saving
Research on Gravity Separation of Anosovite from Ti-bearing Slag
Ji Su, He Qi, Li Qiuju, Zheng Shaobo
2018, 39(3): 63-68. doi: 10.7513/j.issn.1004-7638.2018.03.013
Abstract(106) PDF(2)
Abstract:
In this paper,the method of gravity separation by spiral chute was used to separate the anosovite phase from titanium-bearing slag,thereby realizing the selective separation of titanium components and laying the foundation for comprehensive utilization of the titanium resources.The titanium-bearing ...
Adsorption Characteristics of Ti-bearing Blast Furnace Slag for Total Phosphorus in Water
Xu Rui, Liu Rong, Wang Guoxiang, Ji Lingchen, Xu Yifan, Ye Fei, Yang Ming
2018, 39(3): 69-74. doi: 10.7513/j.issn.1004-7638.2018.03.014
Abstract(76) PDF(3)
Abstract:
Using Ti-bearing blast furnace slag as the adsorbent for total phosphorus removal from waste water,the performances and mechanisms for total phosphorus adsorption of the slag were studied by combination of the kinetics equation and isothermal adsorption equation. The results show that the adsorption...
Microwave-absorbing Media Cooperative Treatment of PAHs in Coking Wastewater
Zhao Ying, Shi Yan, Zhao Xin, Kong Zheng, Feng Yingying
2018, 39(3): 75-79. doi: 10.7513/j.issn.1004-7638.2018.03.015
Abstract(68) PDF(2)
Abstract:
With polycyclic aromatic hydrocarbons(PAHs) in coking wastewater as research object,activated carbon,steel slag and silicon carbide as absorbing media,PAHs in the coking wastewater was qualitatively and quantificationally analyzed by ultrasonic extraction and high performance liquid chromatography.T...
Effect of MnO on the Fluidity and Thermodynamic Behavior s of Low Magnesium Titaniferous Slag
Chang Zhiyu, Zhang Jianliang, Jiao Kexin, Ning Xiaojun, Liu Zhengqiang
2018, 39(3): 80-85. doi: 10.7513/j.issn.1004-7638.2018.03.016
Abstract(121) PDF(3)
Abstract:
In order to analyze the effect of MnO on viscosity of slags under the conditions of titanium ore retaining furnace and manganese ore washing furnace,the low magnesium titaniferous slags had been used as basic slag system.The relationship between MnO content and slags viscosity,melting temperature,ac...
Ferrous Metallurgy and Materials
Influence of Atmosphere Condition on Iron Sheet Gas-solid Decarburization Process
Liu Xinliang, Ai Liqun, Gao Jianxin, Li Yaqiang, Chen Pengfei, Li Qiang
2018, 39(3): 86-93. doi: 10.7513/j.issn.1004-7638.2018.03.017
Abstract(82) PDF(2)
Abstract:
The study of gas-solid reactions is performed in order to investigate the impact of weak oxidizing atmosphere Ar-H2O-H2 on the 1 mm thick 4. 25% C iron-carbon alloy sheet. A serious of orthogonal experiments have been performed to investigate the influence of bath temperature,initial H2 content and ...
Study on Properties of Fluxed Pellets Based on Fractal Theory
Xing Hongwei, Liu Zhenchao, Cai Shuang, Tian Tielei, Zhang Huiqi, Zhang Yuzhu, Ren Chengran
2018, 39(3): 94-99. doi: 10.7513/j.issn.1004-7638.2018.03.018
Abstract(72) PDF(3)
Abstract:
To investigate the pore structure of the fluxed pellets and the effect of basicity on the properties of the fluxed pellets,based on the mercury theory intrusion and the fractal theory,the multifractal spectrum fitting curve of the pore size distribution of the pellets was obtained by numerical simul...
Study on the Dephosphorization Agent for Secondary Dephosphorization of Semi-steel without Vanadium
Huang Bo, Sun Yanhui, Zhao Zhichao, Bai Xuefeng, Chen Lian
2018, 39(3): 100-106. doi: 10.7513/j.issn.1004-7638.2018.03.019
Abstract(80) PDF(1)
Abstract:
Based on a vanadium extraction converter,the semi-steel secondary dephosphorization process had been investigated,in order to improve the dephosphorization process without affecting the production schedule,thus reducing the dephosphorization pressure of the converter and decreasing the phosphorus co...
Theoretical and Experimental Study on Dephosphorization and Carbon Conservation
Shen Chang, Chang Lizhong, Wang Kaizhong, Zhang Ping, Zhu Zhenghai, He Fei, Zhou Li
2018, 39(3): 107-112. doi: 10.7513/j.issn.1004-7638.2018.03.020
Abstract(61) PDF(1)
Abstract:
Based on the ion and molecule coexistence theory,the calculating model of action concentration for CaO-MgO-FeO-SiO2-P2O5 slag was established. Based on this,the influence of slag compositions on the Gibbs free energy of decarburization and dephosphorization was analyzed,the feasibility of dephosphor...
Research on Non-metallic Inclusion Behavior of Q195 Rectangular Billet
Wen Juwen, Zhu Liguang, Sun Ligen, Tian Kuo, Xu Jinzhong
2018, 39(3): 113-117,122. doi: 10.7513/j.issn.1004-7638.2018.03.021
Abstract(61) PDF(3)
Abstract:
Q195 steel is mainly used for strip production.In order to reduce the cost,the LF refining process is removed on the basis of the original process 80 t converter→argon blowing→LF→continuous casting.In order to ensure the slab quality does not affect the product performance,the composition and source...
Evolution Behavior of Inclusion in DP590 Steel during LF Refining Process and Continuous Casting Process
Zhao Maoguo, Xiao Pengcheng, Zhu Liguang, Tang Guozhang
2018, 39(3): 118-122. doi: 10.7513/j.issn.1004-7638.2018.03.022
Abstract(82) PDF(3)
Abstract:
This study on the evolution behavior of the the Non-metallic inclusion in the steel was conducted systematically by the means of the oxygen and nitrogen analysis,microscopic inclusion statistics and SEMEDS energy spectrum.The CaS-CaO-Al2O3 tenary phase diagram in 1 600 ℃ was calculated and plotted b...
Evaluation of Effects of Inclusions Modification in Steel by Different Calcium Treatment Routes
Fang Zhongqiang, Sun Yanhui, Wen Bang, Zhu Wei, Wang Zhen, He Wen
2018, 39(3): 123-128. doi: 10.7513/j.issn.1004-7638.2018.03.023
Abstract(94) PDF(3)
Abstract:
To investigate effects of inclusions modification in steel,the morphology and composition distribution of inclusions in liquid steel from tundish,and composition changes of molten steel in the production of oil casing steel by BOF→LF→RH→CC flow of three different calcium treatment routes were observ...
Development of High Strength Weathering Steel Q450 NQR1 Containing Vanadium
Wang Chuangwei
2018, 39(3): 129-133. doi: 10.7513/j.issn.1004-7638.2018.03.024
Abstract(166) PDF(7)
Abstract:
The high strength weathering steel Q450 NQR1 contaning vanadium was developed through TMCP process. Laboratory test results indicate that the microstructure of plate is ferrite-pearlite and grain size rating is ASTM No. 12,the yield strength,tensile strength,yielding-to-tensile ratio and specific el...
Influence of Cooling Rate and Austenite Grain Size on Nucleation of Ferrite
Wu Zhe, Zhang Caijun, Chen Jin, Liu Yi
2018, 39(3): 134-138. doi: 10.7513/j.issn.1004-7638.2018.03.025
Abstract(189) PDF(9)
Abstract:
In this paper,influence of cooling rate and austenite grain on intragranular ferrite in non quenched and tempered medium carbon steel had been investigated by using high temperature quenching and high temperature phase change machine confocal microscope.Furthermore,the nucleation and growth of intra...
Effect of Finishing Rolling Temperature on the Microstructure and Mechanical Properties of Low Si-Mn-Nb Hot Rolled Dual-phase Steel Strip
Li Qiuhe, Wang Gang, Ying Chuantao, Fu Qingcai, Li Jiangwei
2018, 39(3): 139-143. doi: 10.7513/j.issn.1004-7638.2018.03.026
Abstract(131) PDF(3)
Abstract:
The effect of finishing rolling temperature on the microstructure and mechanical properties of Si-Mn-Nb hot-rolled dual-phase steel were investigated by using TEM,SEM technology and optical microscopy.The results showed that with finishing rolling temperature decreasing,the size of ferrite grains de...
Microstructure and Mechanical Properties of Medium Carbon Martensitic Steel after Warm Rolling at Different Temperatures
Liu Tianyu, Feng Yunli, Xue Ruifeng
2018, 39(3): 144-148,157. doi: 10.7513/j.issn.1004-7638.2018.03.027
Abstract(127) PDF(1)
Abstract:
The effects of rolling temperature on microstructure transformation and mechanical properties of medium carbon martensitic steel were investigated by means of SEM,EBSD and tensile tests. The results show that when sample are subject to 80% deformation,with the rolling temperature increased from 500 ...
Effect of Carbon Content on the Center Segregation and Banded Structure of the 600 MPa Grade High Strength Steel
Liang Wen, Wu Run, Huang Hai'e, Xia Nianping, Wang Lixin, Hu Jun, Zhao Jiangtao
2018, 39(3): 149-157. doi: 10.7513/j.issn.1004-7638.2018.03.028
Abstract(252) PDF(13)
Abstract:
The center segregation and banded structure of the tested steels with three different carbon contents were investigated by original position analyzer for metal,direct reading spectrometer,optical microscope and electron probe microanalyzer. The results showed that the center segregation in the slab ...
Cause of Contact Fatigue Damage on U75 V 60 kg/m Rail
XU Cong
2018, 39(3): 158-164. doi: 10.7513/j.issn.1004-7638.2018.03.029
Abstract(87) PDF(2)
Abstract:
Aiming at the defect inspection alarming of U75 V60 kg/m rail in small radius curve section of heavy-haul railway,the tests of macroscopic appearance,non-metallic inclusion grade,macrostructure and microstructure examination of the alarmed rail were carried out and the results were analyzed. The ana...
Micro-analysis on Oxide Scale of U75 V Hot Rolled Rail
Chen Chongmu
2018, 39(3): 165-168. doi: 10.7513/j.issn.1004-7638.2018.03.030
Abstract(78) PDF(3)
Abstract:
The surface morphology,section morphology,thickness and microstructure of oxide scale on the surface of U75 V hot rolled rail were observed by optical microscope,scanning electron microscope and energy spectrum.The causes for the difference of thickness and morphology of oxide scale on rail and stri...