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2023 5th International Conference on Advanced Materials and Ecological Environment, AMEE 2023

作者： Liu, Qiaochu Peng, Fuchang Wang, Li Department of Materials College of Vanadium and Titanium Panzhihua University Sichuan Panzhihua617000 China Vanadium and Titanium Resource Comprehensive Utilization Key Laboratory of Sichuan Province Sichuan Panzhihua617000 China

Carbon emissions are closely related to global climate change and have gradually become a focus of attention. Carbon capture is an effective way to reduce carbon emissions, ionic liquid microcapsules (ILM) have great potential as a CO2 capture material. [BMIM]HSO4@SiO2 ionic liquid microcapsules were prepared by in situ polymerization, and the microcapsule samples were characterized using thermo-gravimetric analysis & differential scanning calorimetry (TG/DSC), scanning electron microscopy (SEM), laser particle size analysis and surface area analyser. The microcapsules on the CO2 adsorption properties were investigated. The results showed that the microcapsule particles have a smooth spherical morphology and uniform size, the average particle size was 146 μm. The TG/DSC showed the microcapsules have better thermal stability. From 273 K isothermal adsorption curve of microcapsules, the sample can reach the maximum adsorption capacity of 4.87 cm3/g STP (standard pressure). © Published under licence by IOP Publishing Ltd.

关键词： Carbon dioxide

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Real-time observation of bainite formation at heterogeneous phases in a high-strength weathering steel

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Journal of Iron and Steel Research International 2019年第3期26卷 301-309页

作者： Jian Cheng Jia-sheng Qing Yue-hua Guo Hou-fa Shen Key Laboratory for Advanced Materials Processing Technology Ministry of EducationSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Pangang Group Research Institute Co. Ltd.State Key Laboratory of Vanadium and Titanium Comprehensive UtilizationPanzhihua 617000SichuanChina

Due to the excellent comprehensive mechanical properties and toughness of bainite steels,bainite is regarded as a most desirable microstructure for the new generation of high-strength weathering *** formation of bainite was observed in real time in a high-strength weathering steel,and the results showed that bainite laths show impingement during phase *** preferred regions of nucleation sites were identified,and the growth rate of bainite was *** growth mechanism of bainite was demonstrated to exhibit growth rate contributions from both the diffusion mechanism and the shear ***,the heterogeneous phases that form preferred sites for bainite nucleation were quantitatively identified by scanning electron microscopy(SEM),energy-dispersive X-ray spectrometry(EDS),and calculation of phase diagram(CALPHAD).The austenite grain sizes in crease with increasing austenite temperature,which leads to longer bainite *** influence of a small lattice disregistry between the heterogeneous phases and bainite on the bainite nucleation was *** disregistries between the favorable heterogeneous phases of VN,VC,TiN,or TiC and the ot-Fe in bainite are 2.9,3.1,3.9,and 4.6%,***,VN,VC,TiN,and TiC can act as highly effective nuclei for bainite during the bainite transformation.

关键词： Bainite Real-time observation Plasticity Phase transformation Weathering steel

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High-chromium vanadium-titanium magnetite all-pellet integrated burden optimization and softening-melting behavior based on flux pellets

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International Journal of Minerals,Metallurgy and Materials 2024年第3期31卷 498-507页

作者： Bojian Chen Tao Jiang Jing Wen Guangdong Yang Tangxia Yu Fengxiang Zhu Peng Hu School of Metallurgy Northeastern UniversityShenyang 110819China Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China Liaoning Key Laboratory for Metallurgical Sensor and Technology Shenyang 110819China State key laboratory of vanadium and titanium resources comprehensive utilization Panzhihua 617000China

High-chromium vanadium-titanium magnetite(HVTM)is a crucial polymetallic-associated resource to be *** allpellet operation is a blast furnace trend that aims to reduce carbon dioxide emissions in the *** referencing the production data of vanadium-titanium magnetite blast furnaces,this study explored the softening-melting behavior of high-chromium vanadium-titanium magnetite and obtained the optimal integrated burden based on flux *** results show that the burden with a composition of 70wt%flux pellets and 30wt%acid pellets exhibits the best softening-melting *** comparison to that of the single burden,the softening-melting characteristic temperature of this burden composition was *** melting interval first increased from 307 to 362℃and then decreased to 282℃.The maximum pressure drop(ΔPmax)decreased from 26.76 to 19.01 *** permeability index(S)dropped from 4643.5 to 2446.8 kPa·℃.The softening-melting properties of the integrated burden were apparently *** acid pellets played a role in withstanding load during the softening *** flux pellets in the integrated burden exhibited a higher slag melting point,which increased the melting temperature during the melting *** slag homogeneity and the TiC produced by over-reduction led to the gas permeability deterioration of the single *** segregation of the flux and acid pellets in the HVTM proportion and basicity mainly led to the better softening-melting properties of the integrated burden.

关键词： high-chromium vanadium-titanium magnetite softening-melting properties all pellets integrated burden flux pellets

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MOF-driven interaction engineering in solid polymer electrolytes for durable lithium metal batteries

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Chinese Journal of Structural Chemistry 2025年第5期44卷

作者： Liyang Liu De-Xiang Zhang Tian Wen Vanadium and Titanium Resource Comprehensive Utilization Key Laboratory of Sichuan Province Panzhihua Sichuan 617000 People's Republic of China Institute for Superconducting and Electronic Materials Australian Institute for Innovative Materials University of Wollongong Wollongong 2522 Australia School of Chemistry Monash University Clayton Victoria 3800 Australia

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Effect of chemical composition on the element distribution,phase composition and calcification roasting process of vanadium slag

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International Journal of Minerals,Metallurgy and Materials 2022年第12期29卷 2144-2151页

作者： Tangxia Yu Tao Jiang Jing Wen Hongyan Sun Ming Li Yi Peng State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization Panzhihua 617000China School of Metallurgy Northeastern UniversityShenyang 110819China Key Laboratory for Ecological Metallurgy of Multimetallic Mineral of Ministry of Education Northeastern UniversityShenyang 110819China Liaoning Key Laboratory for Metallurgical Sensor and Technology Shenyang 110819China

The chemical composition of vanadium slag significantly affects its element distribution and phase composition,which affect the subsequent calcification roasting process and vanadium *** this work,seven kinds of vanadium slags derived from different regions in China were used as the raw materials to study the effects of different components on the vanadium slag’s elements distribution,phase composition,calcification roasting,and leaching rate of major elements using scanning electron microscope,X-ray diffraction analysis,and inductively coupled plasma-optical emission *** results show that the spinel phase is wrapped with silicate phase in all vanadium slag *** main elements in the spinel phase are Cr,V,and Ti from the interior to the *** size of spinel phase in low chromium vanadium slag is larger than the other vanadium slags with higher chromium *** spinel phase of high-calcium and high-phosphorus vanadium slag is more *** strongest diffraction peak of vanadium spinel phase in the vanadium slag migrates to a higher diffraction angle,and(Fe_(0.6)Cr_(0.4))_(2)O_(3)is formed after calcification roasting as the chromium content increased.A large amount of Ca_(2)SiO_(4)is produced because excess Ca reacts with Si in high-calcium and high-phosphorus vanadium *** vanadium leaching rate reaches 88%in some vanadium *** chromium leaching rate is less than 5%in all vanadium *** silicon leaching rate of high-calcium and high-phosphorus vanadium slag is much higher than that of the other *** leaching rate of manganese is higher than 10%,and the leaching rates of iron and titanium are negligible.

关键词： vanadium slag calcification roasting element distribution phase composition leaching rate

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Head Curvature of Pure titanium Sheet Influenced by Process Parameters and Controlling in Hot Rolling Process

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Journal of Wuhan University of Technology(Materials Science) 2017年第2期32卷 444-450页

作者：于辉 LI Jun LIU Ligang 肖宏 College of Mechanical Engineering Yanshan University Qinhuangdao 066004 China National Engineering Research Center for Equipment and Technology of Cold Steel Rolling Yanshan University Qinhuangdao 066004 China State Key Laboratory for Comprehensive Utilization of Vanadium and Titanium Resources Ansteel Research Institute of Vanadium & Titanium (1ran&steel) Panzhihua 617000 China

We investigated the influences of process parameters on the head curvature of pure titanium sheet in hot rolling process and proposed the controlling means. First, the thermal simulation experiments for pure titanium TA1 were carried out to investigate the hot deformation behaviors of pure titanium in the temperature range of 700-800 ℃ with strain rate range of 1-20 S-1, and the processing map was established to determine optimized deformation parameters. Then, the finite element model has been constructed and used to analyze the effect of process parameters on the direction and severity of head curvature of pure titanium sheet. The process parameters considered in the present study include workpiece temperature, work roll diameter, pass reduction, oxide scale thickness of workpiece surface, and interface friction coefficient. The simulation results show that the workpiece temperature and the interface friction coefficient are the two main factors. The proposed controlling means was carried out on a hot rolling production line and solved the head curvature problem effectively. The rolling practices indicate that the rolling yield is improved greatly.

关键词： head curvature hot rolling process parameter thermal simulation pure titanium sheet

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In-situ Observation of High-temperature Phase Transformation of Ti-6Al-4V titanium Alloy 8

In-situ Observation of High-temperature Phase Transformation...

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2022 8th International Forum on Manufacturing Technology and Engineering Materials, IFEMMT 2022

作者： Zhu, Qiangqiang Yang, Xingdi Lan, Huifang Li, Jianping Zhang, Tianxing State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization Panzhihua617000 China State Key Laboratory of Rolling and Automation Northeastern University Shenyang110819 China

As a typical dual-phase titanium alloy, Ti-6Al-4V has a complex phase transformation process, which is sensitive to temperature parameters and difficult to control its microstructure. To further master the law of phase transformation of Ti-6Al-4V titanium alloy and make a reasonable heat treatment system, different heat treatment systems in ß single-phase region and (a+ß) two-phase region were made for Ti-6Al-4V titanium alloy, and the phase transformation process and microstructure growth rate of different heat treatment processes were studied by high-temperature confocal microscope. At 1050 °C and 1200 °C in the ß single-phase region, the ß grain size increases with the prolongation of the holding time and the increase of the holding temperature. The tissue growth rate of the a phase was higher than 1200°C in the cooling process after 1050°C incubation, which was 2.88 µm/s. Based on the heat preservation in the single-phase region, the second heat preservation was carried out for the two-phase region of Ti-6Al-4V titanium alloy at 850 °C and 900 °C. The study found that when the holding temperature was 850°C, the fastest growth rate of the a phase was 4.64 µm/s, which was greater than 3.29 µm/s when the holding temperature was 900°C. © Published under licence by IOP Publishing Ltd.

关键词： Aluminum alloys

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Latest development and application of FGD with organic amine in Pangang Group

Latest development and application of FGD with organic amine...

引用

2012 International Conference on Frontiers of Energy and Environmental Engineering, ICFEEE 2012

作者： Jianshan, W. Jianming, L. Zhengqiu, Q. Weijia, Z. Xiaolong, Z. Pangang Group Research Institute Co. Ltd. State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization Panzhihua China

ISBN: (纸本)9780415661591

The operation of FGD system for the 173 m2 No. 6 sintering machine in Pangang Group is introduced. Through over two-years' process and equipment improvement, availability of the system working synchronously with the sintering machine reaches 85% with a desulfurization rate of above 88%. Following experimental research and field tests, the independently developed liquid desulfurizer for FGD has been put into industrial operation. © 2013 Taylor & Francis Group.

关键词： Desulfurization

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Influence of N/C ratio on microstructure and properties of new highstrength weathering steels

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Journal of Iron and Steel Research International 2019年第1期26卷 84-90页

作者： Jian Cheng Yue-hua Guo Hou-fa Shen The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Key Laboratory for Advanced Materials Processing Technology School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Pangang Group Research Institute Co. Ltd.State Key Laboratory of Vanadium and Titanium Comprehensive UtilizationPanzhihua 617000SichuanChina

Influence of the N/C ratio on the microstructure and properties of new-generation high-strength weathering steels was investigated using calculation of phase diagram(CALPHAD)and *** microstructures of weathering steels containing different N/C ratios were predicted by a CALPHAD approach,and only three phases were predicted in these steels within the rolling temperature range of 850-1050℃.The precipitation fraction of VN/V(C,N)in creases with increasing N/C *** of the four tested steels were all experimentally determined to contain bainite,ferrite,and VN precipitates after air cooling to room *** bainite fraction increases with in creasing N/C ratio,and it is 85%in the steel containing 0.038% N and 0.032% C,The results of the tensile tests and impact tests demonstrated that the yield strength and tensile strength of the steel containing 0.038%N and 0.032%C are greater than 550 and 650 MPa,respectively,and the elongation is greater than 24%,which satisfies the design objectives for mechanical *** impact toughness values of the four steels at 0,-20,and-40℃ are all greater than 24 *** increasing N/C ratio,the bainite fraction and the precipitation fraction of VN/V(C,N)increase,resulting in increasing yield strength and tensile strength.

关键词： CALPHAD Weathering steel Tensile test-Impact test Microstructure

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Effect of coiling temperature and cold rolling reduction on planar anisotropy of Ti-alloyed low carbon steel

Effect of coiling temperature and cold rolling reduction on ...

引用

2nd International Conference on Materials Engineering, ICMEN 2014

作者： Zhang, Gong Ting Zheng, Zhi Wang Chang, Jun Pangang Group Research Institute Co. Ltd State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization Panzhihua Sichuan China

ISBN: (纸本)9783038351542

The effects of coiling temperature and cold rolling reduction on planar anisotropy of Ti -alloyed low carbon steel were investigated. The results show that as the coiling temperature increases from 509°C to 633°C the strength and elongation have little change, and the planar anisotropy trends to decrease. When coiling at 580°C to 640°C the value of planar anisotropy index (Δr) can be reduced to no more than 0.15. As the total cold rolling reduction increasing from 55% to 85%, the plastic strain ratio values (r-values) perpendicular to rolling direction increase firstly, then decrease;the change regulation of rolling direction is reverse, and the values of 45°direction nearly have no change. And the planar anisotropy can reach 0.07 as cold rolling at 75%. © (2014) Trans Tech Publications, Switzerland.

关键词： Low carbon steel

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