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| 1 | Rolling texture and its effect on tensile property of a near-α titanium alloy Ti60 plate显示文摘Rolling texture and its effect on tensile properties of Ti60 alloy plates were investigated in the present study. The plates were β-rolled at 1070℃ and(α+β)-rolled at 980℃, using uni-directionally rolling(UDR) and cross-directionally rolling(CDR) processes, respectively.β-rolled plates exhibited weak textures, which were attributed to the dispersive orientations of secondary α during the β→α phase transformation. Strong deformation textures formed in(α+β)-rolled plates as a result of slipping mechanisms: the strong T-type texture in UDR plate was related to {10 1 0}[11 2 0] slipping, while the B-type texture in CDR plate was relevant with {0001}[11 2 0] slip. Strong T-type textures led to anisotropic tensile properties. B-type textures would decrease such an anisotropy. The(α+β)-CDR process was found to be a candidate process for reducing anisotropy of Ti60 alloy plates. | Wenyuan Li Zhiyong Chen Jianrong Liu Shaoxiang Zhu Guoxin Sui Qingjiang Wang | 2019 | Journal of Materials Science & Technology2019，35，5： | 11 |
| 2 | Microstructural evolution and FCC twinning behavior during hot deformation of high temperature titanium alloy Ti65显示文摘Although the development of titanium alloys with working temperatures above 600?C faces enormous difficulties and challenges,the related research has not stopped.In the present work,detailed analyses on microstructure evolution and hot deformation behavior of a new temperature resistant 650?C titanium alloy Ti65 were investigated from micrometer scale to nanometer scale.The results revealed that lamellarαgrains gradually fragmentized and spheroidized during theα+βphase region compression and the orientation of the c-axis ofαgrains gradually aligned to radial directions,forming two high Schmid factors(SFs)value texture eventually with the increase of strain to 0.7.Moreover,there were some strengthening characters in theα+βphase region such as lenticularαsand nano silicide(TiZr)6 Si3.In theβphase region,fine equiaxed dynamic recrystallized(DRX)βgrains were formed.Besides,the variant selection ofαm′artensite followed Burgers orientation relationship during the compression process.The main deformation mechanisms of theα+βphase region were dislocation slip and orientation dependent spheroidization.Whereas,the deformation process in theβphase region was controlled byβgrain DRX.Interestingly,many nano scale FCC twins were generated at the interface ofαl′ath during deforming in theβphase region,which was firstly observed in Ti65 alloy. | Zhixin Zhang Jiangkun Fan Bin Tang Hongchao Kou Jian Wang Xin Wang Shiying Wang Qingjiang Wang Zhiyong Chen Jinshan Li | 2020 | Journal of Materials Science & Technology2020，47，14： | 10 |
| 3 | Mechanical properties of electron beam welded dissimilar joints of TC17 and Ti60 alloys显示文摘Microstructure, hardness, tensile and high cycle fatigue(HCF) properties of the welded dissimilar joints of Ti60 and TC17 titanium alloys had been investigated in this study. A significant microstructural change was observed to occur after welding, with rod-like α and β phases in the fusion zone(FZ), equiaxed αphases, fine α laths and β phases in the heat-affected zone(HAZ) of TC17 side and acicular martensiteα' phases+ 'ghost' α phases in the HAZ of Ti60 side. The microhardness across the joints exhibited an inhomogeneous distribution with the highest hardness of ~404 HV in FZ and the lowest hardness of^304 HV in base material(BM) of Ti60. All the joints tested in tension fractured at BM of Ti60 side.Fatigue limits of the joints at 107 cycles were 425 MPa at room temperature and 380 MPa at 400℃,respectively. Welding micropores were found to be the main source of fatigue crack initiation. | Chao Cheng Bingbing Yu Zhiyong Chen Jianrong Liu Qingjiang Wang | 2018 | Journal of Materials Science & Technology2018，34，10： | 10 |
| 4 | Precipitates and alloying elements distribution in nearαtitanium alloy Ti65显示文摘Precipitates,including silicides and Ti3 Al(α2)phase,and alloying elements distribution in a near a titanium alloy Ti65(Ti-5.8 Al-4.0 Sn-3.5 Zr-0.5 Mo-0.3 Nb-1.0 Ta-0.4 Si-0.8 W-0.05 C)after solution treatment and aging process were characterized by using transmission electron microscopy(TEM)and atom probe tomography(APT).Quantitative composition analysis and TEM observation indicate that the silicides fit to(Ti,Zr)6(Sl,Sn)3.Zr exhibits aβ-stabilizing effect in near a titanium alloys but is weaker than otherβstabilizing elements.The enriching tendency of the alloying elements in the retainedβphase is in the order of Zr | Ke Yue Jianrong Liu Haijun Zhang Hui Yu Yuanyuan Song Qingmiao Hu Qingjiang Wang Rui Yang | 2020 | Journal of Materials Science & Technology2020，36，1： | 8 |
| 5 | An Enhanced LMI Approach for Mixed H2/H∞ Flight Tracking Control显示文摘在 Lyapunov 变量和系统矩阵之间联合造成追踪控制器设计的混合 H2/H 飞行的问题非凸。在提高的线性矩阵不平等(LMI ) 的帮助下来临,非凸的优化问题被转变成凸的 LMI 代表。建议联合被介绍松变量消除。而且,一个必要、足够的条件为追踪不仅稳定控制系统而且在正常情况和差错盒子中满足混合 H2/H 表演索引的控制器的混合 H2/H 飞行被导出。新提高的 LMI 代表提供解决非凸的优化问题的自由的另外的度,并且减少控制器设计的稳当。在研究环境的飞行器数据的模型的模拟结果(赞赏) 提高的 LMI 的优点接近的模型表演。 | ZHANG Qingjiang YE Sijun LI Yan WANG Xinmin | 2011 | Chinese Journal of Aeronautics2011，24，3： | 7 |
| 6 | Orientation dependent behavior of tensile-creep deformation of hot rolled Ti65 titanium alloy sheet显示文摘The mill products like sheet always have one or more severe textures inevitably,and its effect on mechanical properties is not a negligible issue.The orientation dependent tensile-creep behavior induced by rolling texture of Ti65 titanium alloy sheet has been systematically investigated at 650℃.There are some anisotropic characteristics between TD and RD of Ti65 sheet.The UTS and TYS of TD are higher than RD at 650℃.Besides,the creep endurance time of TD(172.6–174.5 h)is about three times longer than RD(55.6–65.1 h)at 650℃and 240 MPa.Moreover,the grains are inclined to form Texture III■after creep along with TD,but to form Texture I■after creep along with RD.Finally,the crack initiation site is different during creep in TD and RD.The reason for anisotropic properties of tensile and creep has been summarized in two aspects:(i)the change of the SFs(Schmid factors)value between TD and RD;(ii)the difference of creep mechanism between TD(grain boundary sliding)and RD(dislocation slip).Anisotropy of Ti65 sheet should be fully considered to increase structural efficiency in the engineering design and application. | Zhixin Zhang Jiangkun Fan Ruifeng Li Hongchao Kou Zhiyong Chen Qingjiang Wang Hailong Zhang Jian Wang Qi Gao Jinshan Li | 2021 | Journal of Materials Science & Technology2021，，16： | 7 |
| 7 | Microstructure and Mechanical Properties of Electron Beam Welded Titanium Alloy Ti-6246显示文摘Electron beam welding(EBW) was applied to a 10-mm-thick plate cut from Ti-6246 compressor disk.The microstructural characteristics, microhardness and room temperature tensile properties were investigated. Microstructure observations indicated that there existed plenty of thin needle-like α platelets studding in the matrix of the columnar β grains in the as-welded fusion zone(FZ). Post-weld heat treatment(PWHT) led to the precipitation of small secondary α platelets in the β matrix in heat affected zone and FZ. The thickness and the density of α platelets increased as the temperature of PWHT increased from545 to 645°C. The microhardness across the Ti-6246 EBW joint exhibited a nonuniform distribution. The hardness increased with the decrease of distance to the weld center, and reached the maximum of 467 HV in FZ when PWHT was carried out at 595°C. All the weldments tested with tension were fractured at the base material(BM) and exhibited a ductile fracture mode. The major deformation barrier in BM was the platelet α/β interfaces, however, the major deformation barrier in FZ was found to be β grain boundaries and secondary α/β interfaces. The BM with thicker platelet α phases had lower strength than the other two zones in the joint, and the BM deformed first and led to fracture in this zone. | Guoqiang Wang Zhiyong Chen Jinwei Li Jianrong Liu Qingjiang Wang Rui Yang | 2018 | Journal of Materials Science & Technology2018，34，3： | 6 |
| 8 | PCR-RFLP analysis of mitochondrial DNA ND5/6 region among 3 subspecies of common carp (Cyprinus carpio L.)and its application to genetic discrimination of subspecies显示文摘Mitochondrial DNA ND5/6 region was studied by PCR-RFLP analysis among ten representative strains belonging to three subspecies (Cyprinus carpio carpio, Cypri-nus carpio haematopterus and Cyprinus carpio rubrofuscus) of common carp (Cyprinus carpio L.). A total of 2.4 kb frag-ment was amplified and subjected to restriction endonucle-ase analysis with nine restriction endonucleases subsequently.The results indicated that each subspecies owned one hyplo-type and four restriction enzymes (DdeⅠ, HaeⅢ, TaqⅠand MboⅠ) produced diagnostic restriction sites which could be used for discriminating the three subspecies and as molecu-lar genetic markers for assistant selective breeding of com-mon carp. | ZHOU Jianfeng, WANG Zhongwei, YE Yuzhen & WU Qingjiang State Key Laboratory of Freshwater Ecology and Biotechnology, Insti-tute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China Correspondence should be addressed to Wu Qingjiang (e-mail: qjwu@ihb.ac.cn) | 2003 | Chinese Science Bulletin2003，48，5： | 5 |
| 9 | Dwell and Normal Cyclic Fatigue Behaviours of Ti60 Alloy显示文摘An experimental study of dwell and normal cyclic fatigue behaviours was carried out using specimens from a Ti60 forging with a bimodal microstructure.Apparent decrease in the fatigue life was found under dwell fatigue condition as compared to that under normal cyclic condition.Strain produced in each cycle in dwell fatigued specimens was observed larger than that in its normal cyclic-fatigued counterparts.Interior crack initiation was found in most dwell fatigued specimens as compared to the subsurface crack initiation under normal cyclic fatigue condition.Flat and bright facets were found at crack initiation sites in both cases.The facet density is higher in dwell condition,which is consistent with the crystal orientation and Schmid factors analysis of a grains around secondary cracks using electron back-scattered diffraction(EBSD) methods.Dwell loading favours cleavage in a grains with their basal plane normals aligned no more than 15° to the loading axis,which may account for its lower fatigue life according to the present study. | Lina Yang Jianrong Liu Jun Tan Zhiyong Chen Qingjiang Wang Rui Yang | 2014 | Journal of Materials Science & Technology2014，30，7： | 5 |
| 10 | Comparative study on constitutive relationship of as-cast Ti60 titanium alloy during hot deformation based on Arrhenius-type and artificial neural network models显示文摘 | Wenwen Peng Weidong Zeng Qingjiang Wang Hanqing Yu | 2013 | Materials and Design2013，，： | 2 |
| 11 | High-temperature deformation behavior of Ti60 titanium alloy显示文摘 | Weiju Jia Weidong Zeng Yigang Zhou Jianrong Liu Qingjiang Wang | 2011 | Materials Science & Engineering A2011，，12： | 2 |
| 12 | Highly improved resistive switching performances of the self-doped Pt/HfO_2:Cu/Cu devices by atomic layer deposition显示文摘Metal-oxide electrochemical metallization (ECM) memory is a promising candidate for the next generation nonvolatile memory.But this memory suffers from large dispersion of resistive switching parameters due to the intrinsic randomness of the conductive filament. In this work, we have proposed a self-doping approach to improve the resistive switching characteristics. The fabricated Pt/HfO_2:Cu/Cu device shows outstanding nonvolatile memory properties, including high uniformity, good endurance, long retention and fast switching speed. The results demonstrate that the self-doping approach is an effective method to improve the metal-oxide ECM memory performances and the self-doped Pt/HfO_2:Cu/Cu device has high potentiality for the nonvolatile memory applications in the future. | Sen Liu Wei Wang QingJiang Li XiaoLong Zhao Nan Li Hui Xu Qi Liu Ming Liu | 2016 | Science China(Physics,Mechanics & Astronomy)2016，59，12： | 2 |
| 13 | Corrosion behavior of Ti60 alloy under continuous NaCl solution spraying at 600℃显示文摘The corrosion behavior of Ti60 alloy was investigated under continuous NaCl solution spraying at 600℃.Results indicate that the corrosion rate of the Ti60 alloy is lower than that obtained with the solid NaCl deposit film in HO+O.The outer corrosion products are compact layers mainly containing NaTiOand nanocrystalline TiO.The inner layer is mainly composed of TiO,Ti O and SnO.TiO has a lamellar structure,and TiO has a strip-shaped structure.A mixed corrosion mechanism including classic oxidation and active oxidation occurred under NaCl solution spraying environment:the first stage was controlled by the classic oxidation mechanism with the promotion by the active oxidation following parabolic curves,and the second stage was controlled by the active oxidation mechanism following a linear rise in the mass gain curve.The mixed corrosion mechanism between classic oxidation and active oxidation produced a relatively dense Ti oxides scale,which decreased the corrosion rate. | Rui Li Li Liu Yu Cui Rui Liu Lei Fan Min Cao Zhongfen Yu Zhiyong Chen Qingjiang Wang Fuhui Wang | 2022 | Journal of Materials Science & Technology2022，，29： | 2 |
| 14 | Progress and Prospects of the Strategic Priority Program on Space Science显示文摘In May 2018,the second phase of the Strategic Priority Program on Space Science(SPP II)was officially approved by the Chinese Academy of Sciences,in view of the significant scientific achievements of the first phase of the Strategic Priority Program on Space Science(SPP I)which includes 4 space science missions:the Dark Matter Particle Explorer(DAMPE),ShiJian-10(SJ-10),Quantum Experiments at Space Scale(QUESS)and Hard X-ray Modulation Telescope(HXMT).Aiming to address fundamental scientific questions,SPP II focuses on two major themes:How the universe and life originate and evolve and What is the relationship between the solar system and human beings.In areas that Chinese scientists have advantages,new space science missions including Graviational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM),the Advanced space-based Solar Observatory(ASO-S),the Einstein Probe(EP),and Solar wind Magnetosphere Ionosphere Link Explorer(SMILE)have been approved in the framework of SPP II.This paper presents the research highlights of the SPP I,introduces the recent progress of SPP II,and puts forward the prospects for future development. | WANG Chi SUN Lilin FAN Quanlin LI Chao BAI Qingjiang | 2020 | 空间科学学报2020，40，5： | 2 |
| 15 | Determination of the composition of Chinese Ligustrum lucidum polysaccharide by capillal3 zone electrophoresis with amperometric detection显示文摘 | WANG Qingjiang YU Hui ZONG Jun | 2003 | Journal of Pharmaceutical and Biomedical Analysis2003，31，： | 1 |
| 16 | Effect of processing parameters on hot deformation behavior and microstructural evolution during hot compression of as-cast Ti60 titanium alloy显示文摘 | Wenwen Peng Weidong Zeng Qingjiang Wang Qinyang Zhao Hanqing Yu | 2014 | Materials Science & Engineering A2014，，： | 1 |
| 17 | Determination of four kinds of carbamate pesticides by capillary zone electrophoresis with amperometrie detection at a polyamide-modified carbon paste electrode显示文摘 | Xi Cheng Qingjiang Wang Yuzhi Fang | 2007 | Talanta2007，71，： | 1 |
| 18 | Analysis of sugars in traditional Chinese drugs显示文摘 | Qingjiang Wang Yuzhi Fang | 2004 | Journal of Chromatography B2004，，： | 1 |
| 19 | Evaluation of Oxidation of Ti-Al and Ti-Al-Cr Coatings Arc-ion Plated on Ti-60 High-temperature Titanium Alloy显示文摘High-temperature titanium alloy for aeroengine compressor applications suers from high-temperature oxidation and environmental corrosion,which prohibits long-term service of this kind alloy at temperatures above 600-C.In an attempt to tackle this problem,Ti-48Al(at.pct)and Ti-48Al-12Cr(at.pct)protective coatings were plated on the substrate of alloy Ti-60 by arc ion plating(AIP)method.Isothermal and cyclic oxidation tests were performed in static air at elevated temperatures.Phase composition,morphology of the coatings and distribution of elements were investigated by X-ray di-raction(XRD),scanning electron microscopy (SEM)and energy dispersive X-ray analysis(EDX).The results showed that the Ti-48Al coating exhibited good isothermal oxidation resistance during exposure at 800-C,but poorer resistance against oxidation at 900-C.By contrast Ti-48Al-12Cr coating demonstrated excellent isothermal oxidation resistance at both temperatures. Cyclic oxidation tests performed at 800-C indicated that both coatings demonstrated good cyclic oxidation resistance and no spallation of coatings was observed.But at 900-C only Ti-48Al-12Cr coating demonstrated excellent cyclic oxidation resistance. | Wei Yan Qingjiang Wang Jianrong Liu Shaoqiang Li Fengjiu Sun | 2009 | Journal of Materials Science & Technology2009，25，5： | 1 |
| 20 | Research and application of numerical models of typhoon surge in China Seas显示文摘 | Wang Xinian Yu Fujiang Yin Qingjiang | 1997 | MAUSAM1997，48，4： | 1 |
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