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| 1 | Spatio-temporal characteristics of rural settlements and land use in the Bohai Rim of China显示文摘基于多重遥远察觉到的图象解释和分类,和经济、社会的数据,集中于农村解决的这研究和陆地使用在快速的都市化中变化。农村解决,陆地使用的空间、时间的模式和在 Bohai 边界的影响因素在 5 湩映汵? 汰祡以内被探索吗? | YANG Ren LIU Yansui LONG Hualou QIAO Luyin | 2015 | Journal of Geographical Sciences2015，25，5： | 50 |
| 2 | Detection of HBV DNA and its existence status in liver tissues and peripheral blood lymphocytes from chronic hepatitis B patients显示文摘INTRODUCTIONCumulativeclinicalandexperimentalevidenceindicatesthathostimmuneresponsestohepatitisBvirus(HBV)areresponsibleforl... | TANG Ren Xian, GAO Feng Guang, ZENG Ling Yu, WANG Ying Wei and WANG Yu Long | 1999 | World Journal of Gastroenterology1999，5，4： | 27 |
| 3 | Urban traffic congestion propagation and bottleneck identification显示文摘Bottlenecks in urban traffic network are sticking points in restricting network collectivity traffic efficiency. To identify network bottlenecks effectively is a foundational work for improving network traffic condition and preventing traffic congestion. In this paper, a congestion propagation model of urban network traffic is proposed based on the cell transmission model (CTM). The proposed model includes a link model, which describes flow propagation on links, and a node model, which represents link-to-link flow propagation. A new method of estimating average journey velocity (AJV) of both link and network is developed to identify network congestion bottlenecks. A numerical example is studied in Sioux Falls urban traffic network. The proposed model is employed in simulating network traffic propagation and congestion bottleneck identification under different traffic demands. The simulation results show that continual increase of traffic demand is an immediate factor in network congestion bottleneck emergence and increase as well as reducing network collectivity capability. Whether a particular link will become a bottleneck is mainly determined by its position in network, its traffic flow (attributed to different OD pairs) component, and network traffic demand. | LONG JianCheng GAO ZiYou REN HuaLing LIAN AiPing | 2008 | Science in China(Series F)2008，51，7： | 25 |
| 4 | Overexpression of P53 and its risk factors in esophageal cancer in urban areas of Xi′an显示文摘OverexpressionofP53anditsriskfactorsinesophagealcancerinurbanareasofXi′anQIAOGuiBin1,HANChengLong2,JIANGRenChao1,SUNChang?.. | QIAO GuiBin1, HAN ChengLong2, JIANG RenChao1, SUN ChangSheng3, WANG Yan3 and WANG YunJie3 | 1998 | World Journal of Gastroenterology1998，4，1： | 21 |
| 5 | Natural recovery of different areas of a deserted quarry in South China显示文摘石场是一个表面采矿操作地方,它生产石子,石灰石,和另外的材料的庞大的数量为工业并且构造应用。抛弃的石场的恢复和植被正在变得日益重要。在华南的典型石场的三个区域:为压碎的材料(梯田) 的梯田,宠坏的墩,和留下的方面倾斜,被调查,比较存在植物种类并且学习在环境因素和植被之间的关系。这三个区域的植物种类作文被发现在八年自然恢复以后显著地不同。在他们上发现的典型植物群落由草的植物,蕨纲植物,和灌木组成。土壤有机物,土壤潮湿,和土壤体积密度被认为是为植被继任决定因素的专业。在那里存在不能生活、关於生命的阀值在采出的恢复期间。建议被介绍了那能在石场加速了自然恢复的过程。 | DUAN Wenjun REN Hai FU Shenglei WANG Jun YANG Long ZHANG Jinping | 2008 | Journal of Environmental Sciences2008，20，4： | 17 |
| 6 | Nurse plant theory and its application in ecological restoration in lower subtropics of China显示文摘Nurse plants are those that facilitate the growth and development of other plant species (target species) beneath their canopy because they offer benign microhabitats that are more favorable for seed germination and/or seedling recruitment than their surrounding envi-ronment. Nurse plants have been mainly used to restore vegetation in arid and sub-arid zones in recent years. Based on summarizing the definition of nurse plant and target plant,we review the nursing effect mechanisms,ecological factors that influence nursing effect,rela-tionships between nurse plant and ecological restoration. This review also brings forward possible pairs of nurse and target species at lower subtropical areas. Furthermore,we provide the potential tendency in nurse plant research and application. | Hai Ren Long Yang Nan Liu | 2008 | Progress in Natural Science:Materials International2008，18，2： | 13 |
| 7 | Uptake of HIV Self-testing among Men Who have Sex with Men in Beijing, China: a Cross-sectional Study显示文摘Objective To examine HIV self-testing uptake and its determinates among men who have sex with men(MSM) in Beijing, China. Methods A cross-sectional online survey was conducted in Beijing, China in 2016. Participants were users of a popular Chinese gay networking application and had an unknown or negative HIV status. Univariate and multivariate logistic regression analyses were conducted to examine factors associated with HIV self-testing based on adjusted odds ratio(AOR) and 95% confidence interval(CI). Results Among the 5,996 MSM included in the study, 2,383(39.7%) reported to have used HIV self-testing kits. Willingness to use an HIV self-test kit in the future was expressed by 92% of the participants. High monthly income(AOR = 1.49; CI = 1.10-2.02; P = 0.010), large number of male sex partners(≥ 2: AOR = 1.24; CI = 1.09-1.43; P = 0.002), sexual activity with commercial male sex partners(≥ 2: AOR = 1.94; CI = 1.34-2.82; P = 0.001), long-term drug use(AOR = 1.42; CI = 1.23-1.62; P < 0.001), and long-term HIV voluntary counseling and testing(VCT) attendance(AOR = 3.62; CI = 3.11-4.22; P < 0.001) were all associated with increased odds of HIV self-testing uptake. Conclusion The nearly 40% rate of HIV self-testing uptake among MSM in our sample was high. In addition, an over 90% willingness to use kits in the future was encouraging. HIV self-testing could be an important solution to help China achieve the global target of having 90% of all people living with HIV diagnosed by 2020. | REN Xian Long WU Zun You MI Guo Dong MCGOOGAN Jennifer ROU Ke Ming ZHAO Yan | 2017 | Biomedical and Environmental Sciences2017，30，6： | 13 |
| 8 | Identification of a Newly Isolated Getah Virus in the China-Laos Border,China显示文摘In this study, we isolated a virus strain(YN12031) from specimens of Armigeres subalbatus collected in the China-Laos border. BHK-21 cells infected with YN12031 exhibited an evident cytopathic effect(CPE) 32 h post-infection. The virus particles were spherical, 70 nm in diameter, and enveloped; they also featured surface fibers. Molecular genetic analysis revealed that YN12031 was closely related to alpha viruses such as Chikungunya virus and Sindbis virus, and located in the same clade as MM2021, the prototype of Getahvirus(GETV) isolated in Malaysia in 1955. Phylogenetic analysis of the E2 and capsid genes further revealed that YN12031 was located in the same clade as the Russian isolate LEIV/16275/Mag. Analysis of the homology of nucleotides and amino acids in the coding area and E2 gene demonstrated that the YN12031 isolated from the China-Laos border(tropical region) was related closest to the LEIV/16275/Mag isolate obtained in Russia(North frigid zone area) among other isolates studied. These results suggest that GETV can adapt to different geographical environments to propagate and evolve. Thus, strengthening the detection and monitoring of GETV and its related diseases is very crucial. | LI Yuan Yuan FU Shi Hong GUO Xiao Fang LEI Wen Wen LI Xiao Long SONG Jing Dong CAO Lei GAO Xiao Yan LYU Zhi HE Ying WANG Huan Yu REN Xiao Jie ZHOU Hong Ning WANG Gui Qin LIANG Guo Dong | 2017 | Biomedical and Environmental Sciences2017，30，3： | 12 |
| 9 | The enhanced X-ray Timing and Polarimetry mission—eXTP显示文摘In this paper we present the enhanced X-ray Timing and Polarimetry mission—eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the dynamics of matter in strong-field gravity. In addition to investigating fundamental physics, eXTP will be a very powerful observatory for astrophysics that will provide observations of unprecedented quality on a variety of galactic and extragalactic objects. In particular, its wide field monitoring capabilities will be highly instrumental to detect the electro-magnetic counterparts of gravitational wave sources.The paper provides a detailed description of:(1) the technological and technical aspects, and the expected performance of the instruments of the scientific payload;(2) the elements and functions of the mission, from the spacecraft to the ground segment. | ShuangNan Zhang Andrea Santangelo Marco Feroci YuPeng Xu FangJun Lu Yong Chen Hua Feng Shu Zhang Sφren Brandt Margarita Hernanz Luca Baldini Enrico Bozzo Riccardo Campana Alessandra De Rosa YongWei Dong Yuri Evangelista Vladimir Karas Norbert Meidinger Aline Meuris Kirpal Nandra Teng Pan Giovanni Pareschi Piotr Orleanski QiuShi Huang Stephane Schanne Giorgia Sironi Daniele Spiga Jiri Svoboda Gianpiero Tagliaferri Christoph Tenzer Andrea Vacchi Silvia Zane Dave Walton ZhanShan Wang Berend Winter Xin Wu Jean J.M.in't Zand Mahdi Ahangarianabhari Giovanni Ambrosi Filippo Ambrosino Marco Barbera Stefano Basso Jörg Bayer Ronaldo Bellazzini Pierluigi Bellutti Bruna Bertucci Giuseppe Bertuccio Giacomo Borghi XueLei Cao Franck Cadoux Francesco Ceraudo TianXiang Chen Yu Peng Chen Jerome Chevenez Marta Civitani Wei Cui WeiWei Cui Thomas Dauser Ettore Del Monte Sergio Di Cosimo Sebastian Diebold Victor Doroshenko Michal Dovciak YuanYuan Du Lorenzo Ducci QingMei Fan Yannick Favre Fabio Fuschino JoséLuis Ga'lvez Min Gao MingYu Ge Olivier Gevin Marco Grassi QuanYing Gu YuDong Gu DaWei Han Bin Hong Wei Hu Long Ji ShuMei Jia WeiChun Jiang Thomas Kennedy Ingo Kreykenbohm Irfan Kuvvetli Claudio Labanti Luca Latronico Gang Li MaoShun Li Xian Li Wei Li ZhengWei Li Olivier Limousin HongWei Liu XiaoJing Liu Bo Lu Tao Luo Daniele Macera Piero Malcovati Adrian Martindale Malgorzata Michalska Bin Meng Massimo Minuti Alfredo Morbidini Fabio Muleri Stephane Paltani Emanuele Perinati Antonino Picciotto Claudio Piemonte JinLu Qu Alexandre Rachevski Irina Rashevskaya Jerome Rodriguez Thomas Schanz ZhengXiang Shen LiZhi Sheng JiangBo Song LiMing Song Carmelo Sgro Liang Sun Ying Tan Phil Uttley Bo Wang DianLong Wang GuoFeng Wang Juan Wang LangPing Wang YuSa Wang Anna L.Watts XiangYang Wen Jörn Wilms ShaoLin Xiong JiaWei Yang Sheng Yang YanJi Yang Nian Yu WenDa Zhang Gianluigi Zampa Nicola Zampa Andrzej A.Zdziarski AiMei Zhang ChengMo Zhang Fan Zhang Long Zhang Tong Zhang Yi Zhang XiaoLi Zhang ZiLiang Zhang BaoSheng Zhao ShiJie Zheng Yu Peng Zhou Nicola Zorzi J.Frans Zwart | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，2： | 11 |
| 10 | Suppression or knockout of SaF/SaM overcomes the Sa-mediated hybrid male sterility in rice显示文摘Hybrids between the indica and japonica subspecies of rice(Oryza sativa) are usually sterile, which hinders utilization of heterosis in the inter-subspecific hybrid breeding. The complex locus Sa comprises two adjacently located genes, SaF and SaM, which interact to cause abortion of pollen grains carrying the japonica allele in japonica-indica hybrids. Here we showed that silencing of SaF or SaM by RNA interference restored male fertility in indica-japonica hybrids with heterozygous Sa. We further used clustered regularly interspaced short palindromic repeats(CRISPR)/Cas9-based genome editing to knockout the SaF and SaM alleles, respectively, of an indica rice line to create hybrid-compatible lines. The resultant artificial neutral alleles did not affect pollen viability and other agricultural traits, but did break down the reproductive barrier in the hybrids. We found that some rice lines have natural neutral allele Sa-n, which was compatible with the typical japonica or indica Sa alleles in hybrids. Our results demonstrate that SaF and SaM are required for hybrid male sterility, but are not essential for pollen development. This study provides effective approaches for the generation of hybrid-compatible lines by knocking out the Sa locus or using the natural Sa-n allele to overcome hybrid male sterility in rice breeding. | Yongyao Xie Baixiao Niu Yunming Long Gousi Li Jintao Tang Yaling Zhang Ding Ren Yao-Guang Liu Letian Chen | 2017 | Journal of Integrative Plant Biology2017，59，9： | 11 |
| 11 | Plasma microRNAs as potential new biomarkers for early detection of early gastric cancer显示文摘BACKGROUND Early gastric cancer(EGC), compared with advanced gastric cancer(AGC), has a higher 5-year survival rate. However, due to the lack of typical symptoms and the difficulty in diagnosing EGC, no effective biomarkers exist for the detection of EGC, and gastroscopy is the only detection method.AIM To provide new biomarkers with high specificity and sensitivity through analyzed the differentially expressed microRNAs(miRNAs) in EGC and AGC and compared them with those in benign gastritis(BG).METHODSWe examined the differentially expressed miRNAs in the plasma of 30 patients with EGC, AGC, and BG by miRNA chip analysis. Then, we analyzed and selected the significantly different miRNAs using bioinformatics. Reverse transcription quantitative real-time polymerase chain reaction(RT-qPCR)confirmed the relative transcription level of these miRNAs in another 122 patients, including patients with EGC, AGC, Helicobacter pylori(H. pylori)-negative gastritis(Control-1), and H. pylori-positive atrophic gastritis(Control-2).To establish a diagnostic model for the detection of plasma miRNA in EGC, we chose miRNAs that can be used to determine EGC and AGC from Control-1 and Control-2 and miRNAs in EGC from all other groups.RESULTS Among the expression profiles of the miRNA chips in the three groups in the discovery set, of 117 aberrantly expressed miRNAs, 30 confirmed target prediction, whereas 14 were included as potential miRNAs. The RT-qPCR results showed that 14 potential miRNAs expression profiles in the two groups exhibited no differences in terms of H. pylori-negative gastritis(Control-1) and H. pyloripositive atrophic gastritis(Control-2). Hence, these two groups were incorporated into the Control group. A combination of four types of miRNAs,miR-7641, miR-425-5 p, miR-1180-3 p and miR-122-5 p, were used to effectively distinguish the Cancer group(EGC + AGC) from the Control group [area under the curve(AUC) = 0.799, 95% confidence interval(CI): 0.691-0.908, P < 0.001].Additionally, miR-425-5 p, miR-24-3 p, miR-1180-3 p and miR-122-5 p were utilized to distinguish EGC from the Control group(AUC = 0.829, 95%CI: 0.657-1.000, P =0.001). Moreover, the miR-24-3 p expression level in EGC was lower than that in the AGC(AUC = 0.782, 95%CI: 0.571-0.993, P = 0.029), and the miR-4632-5 p expression level in EGC was significantly higher than that in AGC(AUC = 0.791,95%CI: 0.574-1.000, P = 0.024).CONCLUSION The differentially expressed circulatory plasma miR-425-5 p, miR-1180-3 p, miR-122-5 p, miR-24-3 p and miR-4632-5 p can be regarded as a new potential biomarker panel for the diagnosis of EGC. The prediction and early diagnosis of EGC can be considerably facilitated by combining gastroscopy with the use of these miRNA biomarkers, thereby optimizing the strategy for effective detection of EGC. Nevertheless, larger-scale human experiments are still required to confirm our findings. | Xiao-Liang Zhu Long-Fei Ren Hai-Ping Wang Zhong-Tian Bai Lei Zhang Wen-Bo Meng Ke-Xiang Zhu Fang-Hui Ding Long Miao Jun Yan Yan-Ping Wang Yu-Qin Liu Wen-Ce Zhou Xun Li | 2019 | World Journal of Gastroenterology2019，25，13： | 11 |
| 12 | Ce-based catalysts used in advanced oxidation processes for organic wastewater treatment: A review显示文摘Refractory organic pollutants in water threaten human health and environmental safety,and advanced oxidation processes (AOPs) are effective for the degradation of these pollutants.Catalysts play vital role in AOPs,and Ce-based catalysts have exhibited excellent performance.Recently,the development and application of Ce-based catalysts in various AOPs have been reported.Our study conducts the first review in this rapid growing field.This paper clarifies the variety and properties of Ce-based catalysts.Their applications in different AOP systems (catalytic ozonation,photodegradation,Fenton-like reactions,sulfate radicalbased AOPs,and catalytic sonochemistry) are discussed.Different Ce-based catalysts suit different reaction systems and produce different active radicals.Finally,future research directions of Ce-based catalysts in AOP systems are suggested. | Lijun Niu Ting Wei Qiangang Li Guangming Zhang Guang Xian Zeqing Long Zhijun Ren | 2020 | Journal of Environmental Sciences2020，32，10： | 10 |
| 13 | On the Growth of Solutions of Second Order Linear Differential Equations with Extremal Coefficients显示文摘In this paper, we consider the differential equation f + A(z)f + B(z)f = 0, where A and B ≡ 0 are entire functions. Assume that A is extremal for Yang's inequality, then we will give some conditions on B which can guarantee that every non-trivial solution f of the equation is of infinite order. | Jian Ren LONG Peng Cheng WU Zheng ZHANG | 2013 | Acta Mathematica Sinica,English Series2013，29，2： | 9 |
| 14 | Bionic Coupling of Hardness Gradient to Surface Texture for Improved Anti-wear Properties显示文摘 | Long Zheng Jianjun Wu Si Zhang Shishuai Sun Zhihui Zhang Song Liang Zhenning Liu Luquan Ren | 2016 | Journal of Bionic Engineering2016，13，3： | 9 |
| 15 | Coral reef-like polyanaline nanotubes prepared by a reactive template of manganese oxide for supercapacitor electrode显示文摘由 nanopaticles 组成的珊瑚像礁石的 PANI nanotubes 被锰氧化物的一个反应模板成功地综合。结构被使用 SEM, TEM,和英尺红外描绘,并且这些 nanotubes 的 supercapacitive 行为与周期的 voltammetry (CV ) 被调查,并且 chargedischarge 分别地测试。533 F/g 的一个最大的特定的电容能在 1 mol/L 被完成有 0.2 ~ 0.8 V 的潜在的范围的水的 H2SO4 (对浸透的甘汞电极) 在为 PANI 电极的一种一半房间安装配置,为电气化学的电容器在电极材料建议它的潜在的申请。 | Ling Ren Wang Fen Ran Yong Tao Tan Lei Zhao Ling Bin Kong Long Kang | 2011 | Chinese Chemical Letters2011，22，8： | 8 |
| 16 | HPRF pulse Doppler stepped frequency radar显示文摘Stepped frequency radar is a well known scheme to generate high range resolution profile(HRRP) of targets. Through appropriate radar parameter design,the radar enables both unambiguous velocity measurement and high resolution ranging within a single dwell in a high pulse repetition frequency(HPRF) mode. This paper analyzes in detail the design principle of the HPRF stepped frequency radar system,the solution to its ambiguity issue,as well as its signal processing method. Both theoretical analysis and simulation results demonstrate that the proposed radar scheme can work independently to solve the problem of motion compensation,and is therefore highly applicable to many new types of radar. | LONG Teng REN LiXiang | 2009 | Science in China(Series F)2009，52，5： | 8 |
| 17 | Characteristics of dissolved organic matter in lakes with different eutrophic levels in southeastern Hubei Province,China显示文摘Dissolved organic matter(DOM)plays a crucial role in both the carbon cycle and geochemical cycles of other nutrient elements,which is of importance to the management and protection of the aquatic environments.To achieve a more comprehensive understanding the characteristics of DOM in the Changjiang(Yangtze)River basin,water samples from four natural lakes(Xiandao,Baoan,Daye,and Qingshan)in southeastern Hubei Province in China with different eutrophication levels were collected and analyzed.The optical characteristics were analyzed using ultraviolet-visible spectrophotometry and excitation-emission matrix spectroscopy coupled with parallel factor analysis.The results show that:(1)two humic-like components(C1 and C2)and two protein-like substances(C3 and C4)of DOM were identified in all waterbodies;(2)C3 originated primarily from the degradation of microalgae and contributed substantially to humic-like components during transformation.C4 was widely present in the Changjiang River basin and its formation was related to microbial activity,rather than algal blooms or seasons.Influenced by the water mixing,the protein-like components were more likely to be transformed by microorganism,whereas humic-like components were more easily to be photobleached;(3)the concentration of DOM and the fluorescence intensity of humic-like components gradually increased with rising lake eutrophication levels.With respect to protein-like components,only C3 showed changes along the eutrophication gradients;(4)DOM showed a high affinity with permanganate index(COD Mn)and chlorophyll a(chl a)while the relationship was variable with phosphorus.This study helps us systematically understand the DOM characteristics,microbial activities,and pollutant transformation in the Changjiang River basin and provides reference to the ecological restoration of aquatic environments. | Weixiang REN Xiaodong WU Xuguang GE Guiying LIN Mengdie ZHOU Zijie LONG Xinhui YU Wei TIAN | 2021 | Journal of Oceanology and Limnology2021，39，4： | 8 |
| 18 | Primary evidence for involvement of IP_(3) in heat-shock signal transduction in Arabidopsis显示文摘热吃惊(HS ) 表明的在 transducing 的肌醇 1,4,5-trisphosphate (IP (3 )) 的角色在 Arabidopsis 被检验。整个植物的 IP (3 ) 水平在 37 度 C 在 HS 的 1 min 以内增加了。在 HS 的 3 min 以后, IP (3 ) 水平到达了最大值 2.5 褶层增加。用有 AtHsp18.2 promoter-beta-glucuronidase ( GUS )的转基因的 Arabidopsis 植物熔化基因, GUS 活动的水平在 non-HS 和 HS 温度由将关入笼中的 IP ( 3 )的增加是起来调整的并且由 phospholipase C ( PLC )禁止者是下面调整的,这被发现{1-[6-(( 17beta-3-Methoxyestra-1,3,5 ( 10 ) -trien-17-yl)amino)hexyl]-2,5-pyrro lidinedione }( U-73122 )。细胞内部免费的钙离子集中([Ca (2+)](i)) 在表示 apoaequorin 的暂停有教养的 Arabidopsis 房间在 37 度 C 在 HS 期间增加了。有 U-73122 的处理阻止了增加[Ca (2+)](i) 到某程度。上面的结果在更高的植物在 HS 信号 transduction 为 IP (3 ) 的可能的参与提供了主要证据。 | Hong Tao Liu Fei Gao Shu Juan Cui Jin Long Han Da Ye Sun Ren Gang Zhou | 2006 | Cell Research2006，16，4： | 7 |
| 19 | Methane aromatization in the absence of oxygen over extruded and molded MoO_3/ZSM-5 catalysts:Influences of binder and molding method显示文摘The influences of binder and molding method on the catalytic performance of methane aromatization in the absence of O2 over MoO3/ZSM-5 catalysts were investigated.SEM,NH3-TPD,FT-IR of adsorbed pyridine,N2 adsorption-desorption,cyclohexane adsorption and XPS were employed to characterize the physical and chemical properties of the catalysts.It was found that SiO2 was a suitable binder for the catalyst due to its appropriate weak acidity.The laminar catalyst comprising of an inert spherical core and a MoO3/ZSM-5 laminar shell with 0.1 0.2 mm in thickness showed a better catalytic performance than the extruded catalyst.The improved activity of the laminar catalyst could be attributed to the easy carbonization of Mo species and the quick removal of reaction products from the catalyst surface. | Dongmei Ren Xiangsheng Wang Gang Li Xiaojing Cheng Huayun Long Lidong Chen | 2010 | Journal of Natural Gas Chemistry2010，19，6： | 7 |
| 20 | Microstructures and mechanical properties of Ti3Al/Ni-based superalloy joints brazed with AuNi filler metal显示文摘For the purpose of high-temperature service and the weight reduction in aviation engineering applications, the dissimilar joining of Ti3Al-based alloy to Ni-based superalloy (GH536) was conducted using Au-17.5Ni (wt%) brazing filler metal. The microstructure and chemical composition at the interfaces were investigated by scanning electron microscope, X-ray diffraction and transmission electron microscope. The diffusion behaviors of elements were analyzed as well. The results indicated that the Ti3Al/GH536 joint microstructure was characterized by multiple layer structures. Element Ni from Au-Ni filler metal reacted with Ti3Al base metal, leading to the formation of AlNi2Ti and NiTi compounds. Element Ni from Ti3Al base metal reacted with Ni and thus Ni3Nb phase was detected in the joint central area. Due to the dissolution of Ni-based superalloy,(Ni,Au) solid solution ((Ni,Au)ss) and Ni-rich phase were visible adjacent to the superalloy side. The average tensile strength of all the joints brazed at 1253 K for 5-20 min was above 356 MPa at room-temperature. In particular, the joints brazed at 1253 K/15 min presented the maximum tensile strength of434 MPa at room-temperature, and the strength of 314 MPa was maintained at 923 K. AlNi2Ti compound resulted in the highest hardness area and the fracture of the samples subjected to the tensile test mainly occurred in this zone. | H.S. Ren H.P.Xiong W.M. Long B. Chen Y.X. Shen J. Pang | 2019 | Journal of Materials Science & Technology2019，35，9： | 7 |
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