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| 1 | Diffusion bonding of AlCoCrFeNi2.1 eutectic high entropy alloy to TiAl alloy显示文摘High entropy alloys have special microstructure and remarkable properties.To explore their potential engineering application in high temperature structures,the microstructure evolution of bonding interface,the elemental diffusion behavior and mechanical property of the diffusion bonded joint between AlCoCrFeNi2.1eutectic high entropy alloy(EHEA)and TiAl alloy were investigated.Four reaction layers(rodlike B2 phase,Al(Co,Ni)2Ti,τ3-Al3NiTi2+TiAl,τ3-Al3NiTi2+TiAl+Ti3Al)formed in the diffusion zone near FCC phase of EHEA,but three layers(Al(Co,Ni)2Ti,τ3-Al3Ni Ti2+Ti Al,τ3-Al3Ni Ti2+Ti Al+Ti3Al)formed near B2 phase.Al and Ni controlled the reaction diffusion of EHEA and TiAl alloy,coarsened the acicular precipitated B2 phase and turned Ti Al phase into Al(Co,Ni)2Ti andτ3-Al3NiTi2 phases.All these reaction layers grew in a parabolic manner as a function of bonding temperature.Rodlike B2 phase has the lowest growth activation energy of 125.2 kJ/mol,and the growth activation energy ofτ3-Al3Ni Ti2+TiAl layer near B2 phase is much lower than that near FCC phase.The penetration phenomenon and convex structure formed in the diffusion zone,which resulted in interlocking effect and enhanced the strength of resultant joints.The highest shear strength of 449 MPa was achieved at 950℃.And the brittle fracture generally initiated at the interface between Al(Co,Ni)2Ti andτ3-Al3NiTi2+TiAl layers. | Peng Li Shuai Wang Yueqing Xia Xiaohu Hao Honggang Dong | 2020 | Journal of Materials Science & Technology2020，42，10： | 8 |
| 2 | Microstructure and Mechanical Properties of Pulse MIG Welded 6061/A356 Aluminum Alloy Dissimilar Butt Joints显示文摘The microstructure and mechanical properties of pulse metal inert-gas(MIG) welded dissimilar joints between 4 mm thick wrought 6061-T6 and cast A356-T6 aluminum alloy plates were investigated. The tensile strength of the joints reached 235 MPa, which is 83% of that of 6061 aluminum alloy, and then decreased with the increase of travel speed while keeping other welding parameters constant. The microstructure, composition and fractography of joints were examined by the optical microscopy(OM),scanning electron microscopy(SEM) and electron probe microanalysis(EPMA). Grain boundary liquation and segregation occurred in the partially melted zone(PMZ) on 6061 aluminum alloy side, and brittle Fe-rich phases were observed in partially melted zone on A356 aluminum alloy side. The minimum microhardness appeared in heat-affected zone(HAZ) near A356 aluminum alloy substrate. The samples during tensile test failed mainly in PMZ and HAZ on A356 aluminum alloy side through mixed fracture mode with quasi cleavage and dimples on fracture surface. | Fuheng Nie Honggang Dong Su Chen Peng Li Leyou Wang Zhouxing Zhao Xintao Li Hai zhang | 2018 | Journal of Materials Science & Technology2018，34，3： | 8 |
| 3 | High-Resolution Genome-wide Association Study Identifies Genomic Regions and Candidate Genes for Important Agronomic Traits in Wheat显示文摘Wheat(Triticum aestivum)is a major staple food crop worldwide.Genetic dissection of important agronomic traits is essential for continuous improvement of wheat yield to meet the demand of the world's growing population.We conducted a large-scale genome-wide association study(GWAS)using a panel of 768 wheat cultivars that were genotyped with 327609 single-nucleotide polymorphisms generated by genotyping-by-sequencing and detected 395 quantitative trait loci(QTLs)for 12 traits under 7 environments.Among them,273 QTLs were delimited to≤1.0-Mb intervals and 7 of them are either known genes(Rht-D,Vrn-B1,and Vrn-D1)that have been cloned or known QTLs(TaGA2ox8,APO1,TaSus1-7B,and Rht12)that were previously mapped.Eight putative candidate genes were identified for three QTLs that enhance spike seed setting and grain size using gene expression data and were validated in three bi-parental populations.Protein sequence analysis identified 33 putative wheat orthologs that have high identity with rice genes in QTLs affecting similar traits.Large r^2 values for additive effects observed among the QTLs for most traits indicated that the phenotypes of these identified QTLs were highly predictable.Results from this study demonstrated that significantly increasing GWAS population size and marker density greatly improves detection and identification of candidate genes underlying a QTL,solidifying the foundation for large-scale QTL fine mapping,candidate gene validation,and developing functional markers for genomics-based breeding in wheat. | Yunlong Pang Chunxia Liu Danfeng Wang Paul St.Amand Amy Bernardo Wenhui Li Fang He Linzhi Li Liming Wang Xiufang Yuan Lei Dong Yu Su Huirui Zhang Meng Zhao Yunlong Liangi Hongze Jia Xitong Shen Yue Lu Hongming Jiang Yuye Wu Anfei Li Honggang Wang Lingrang Kong Guihua Bai Shubing Liu | 2020 | Molecular Plant2020，13，9： | 8 |
| 4 | CuTiNiZrV Amorphous Alloy Foils for Vacuum Brazing of TiAl Alloy to 40Cr Steel显示文摘Vacuum brazing of TiAl alloy to 40Cr steel sheets was conducted with newly developed CuTiNiZrV amorphous foils. It was found that a diffusion layer,filler metal and reaction layer existed in the brazed seam. The diffusion layer in the joint brazed with Cu43.75Ti37.5Ni6.25Zr6.25V6.25(at.%) foil was flat and thin,containing Ti19Al6 and Ti2Cu intermetallic compounds; however,the diffusion layer brazed with Cu37.5Ti25Ni12.5Zr12.5V12.5 foil was uneven with bulges,consisting of essentially Ti-based solute solution. The foil with 12.5 at.% V showed inferior spreadability compared to that with 6.25 at.% V at brazing temperature. However,fracture happened along the diffusion layer with 6.25 at.% V foil due to the formation of brittle intermetallic phases,but the joints brazed with 12.5 at.% V foil failed through the TiAl substrate. These results show that designing amorphous alloy with less Ti and more V for brazing TiAl alloy to steel is appropriate. | Honggang Dong Zhonglin Yang Zengrui Wang Dewei Deng Chuang Dong | 2015 | Journal of Materials Science & Technology2015，31，2： | 7 |
| 5 | Effect of Post-weld Heat Treatment on Properties of Friction Welded Joint Between TC4 Titanium Alloy and 40Cr Steel Rods显示文摘Dissimilar metal joining of Ti–6Al–4V(TC4) titanium alloy to as-rolled 40 Cr steel rods was conducted with friction welding, and the effect of post-weld heat treatment(PWHT) on the microstructure and mechanical properties of the resultant joints was investigated. The average tensile strength of the as-welded joints reached 766 MPa and failure occurred in 40 Cr steel base metal. However, after PWHT at 600 °C for 0.5, 1, 2 and 3 h, the tensile strength of the joints decreased and fracture happened through the interface with quasi-cleavage features. The bending angle of specimens was improved from 9.6° in as-welded state to 32.5° after PWHT for 2 h. The tensile strength of the joint was enhanced by martensitic transformation near the interface in as-welded state. Sorbite formed near the interface in PWHT state and improved the bending ductility of the joint. Ti C brittle phase formed at the interface after PWHT for 0.5 h and deteriorated the tensile strength and bending ductility of the joint. After PWHT for 2 h, no Ti C phase was detected at the interface. The microhardness on the interface in as-welded state was higher than that after PWHT, indicating that the decrease of microhardness around the interface could be accompanied by degradation of tensile strength but improvement of bending ductility of the joints. | Honggang Dong Lianzhen Yu Dewei Deng Wenlong Zhou Chuang Dong | 2015 | Journal of Materials Science & Technology2015，31，9： | 6 |
| 6 | A simple model of radial nerve injury in the rhesus monkey to evaluate peripheral nerve repair显示文摘Current research on bone marrow stem cell transplantation and autologous or xenogenic nerve transplantation for peripheral nerve regeneration has mainly focused on the repair of peripheral nerve defects in rodents.In this study,we established a standardized experimental model of radial nerve defects in primates and evaluated the effect of repair on peripheral nerve injury.We repaired 2.5-cm lesions in the radial nerve of rhesus monkeys by transplantation of autografts,acellular allografts,or acellular allografts seeded with autologous bone marrow stem cells.Five months after surgery,regenerated nerve tissue was assessed for function,electrophysiology,and histomorphometry.Postoperative functional recovery was evaluated by the wrist-extension test.Compared with the simple autografts,the acellular allografts and allografts seeded with bone marrow stem cells facilitated remarkable recovery of the wrist-extension functions in the rhesus monkeys.This functional improvement was coupled with radial nerve distal axon growth,a higher percentage of neuron survival,increased nerve fiber density and diameter,increased myelin sheath thickness,and increased nerve conduction velocities and peak amplitudes of compound motor action potentials.Furthermore,the quality of nerve regeneration in the bone marrow stem cells-laden allografts group was comparable to that achieved with autografts.The wrist-extension test is a simple behavioral method for objective quantification of peripheral nerve regeneration. | Dong Wang Xijun Huang Guo Fu Liqiang Gu Xiaolin Liu Honggang Wang Jun Hu Jianhua Yi Xiaofeng Niu Qingtang Zhu | 2014 | Neural Regeneration Research2014，9，10： | 3 |
| 7 | Current Density Distribution in Double-Sided GTAW Process显示文摘A three dimensional current density distribution in double-sided gas tungsten arc welding (GTAW) proces is performed. The current density distribution field is evaluated by numerically solving Maxwell equations in the domain of the workpiece. In the boundary condition, the current density on. the workpiece surface is assumed as Gaussian distribution. Results show that the current distribution in DSAW is different from single side arc welding, it is more concentrated and the relative location of the two torches influence the current distribution greatly. | Hongming GAO Lin WU and Honggang DONG National Key Laboratory of Advanced Welding Production Technology, Harbin institute of Technology, Harbin 150001, China | 2001 | Journal of Materials Science & Technology2001，17，1： | 2 |
| 8 | Current Density Distribution in Gas Tungsten Arc Welding Process显示文摘Heat transfer and fluid flow in a weld pool had been simulated for several decades, which underwent from theoretically analysis to numerical solutions. Because of the complexity of the welding process, many ideal assumptions were made to simplify the question. This makes the solution somewhat not complied with the practical conditions. In previous papers, the current distribution in the weld pool is assumed as axi-symmetrical, and so does the electromagnetic forces, which plays an important role in determining the fluid flow field. Actually the current distribution is different from the assumption. In this paper; a three dimensional current distribution in Gas Tungsten Arc Welding (GTAW) process is performed. The current density distribution field is evaluated by numerically solving Maxwell’s equations in the domain of the workpiece. In the boundary condition, the current density on the top surface is assumed as Gaussian distribution. Results show that the current distribution in GTAW is not axi-symmetrical, and the relative location of the torch and the earth clamp influence the current distribution greatly. | Hongming GAO Lin WU Honggang DONG National Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin, 150001, China | 2000 | Journal of Shanghai Jiaotong university(Science)2000，5，1： | 2 |
| 9 | Effects of Gap Width and Groove on the Mechanical Properties of Butt Joint Between Aluminum Alloy and Stainless Steel显示文摘Butt joining of 5A02 aluminum alloy to 304 stainless steel sheets was conducted using gas tungsten arc welding process with Al-12%Si (wt.%, the same below) and Zn-15%Al flux-cored filler wires. The effects of gap width and groove in steel side on the microstructure and tensile strength of the resultant joints were investigated. For the joint made with 0 mm-wide gap and without groove in steel side, severe incomplete brazing zone occurred along the steel side and bottom surfaces, and consequently seriously deteriorated the joint strength. However, presetting 1.5 mm-wide gap or with groove in steel side could promote the wetting of molten filler metal on the faying surfaces, and then significantly enhance the resultant joint strength. Moreover, post-weld heat treatment could further improve the tensile strength of the joints. During tensile testing, the specimens from the joints made with Al-12%Si flux-cored filler wire fractured through the weld or interfacial layer, but those from the heat-treated joints made with Zn-15%Al flux-cored filler wire fractured in the aluminum base metal. | Honggang DONG Chuanqing LIAO | 2013 | Acta Metallurgica Sinica(English Letters)2013，26，2： | 1 |
| 10 | Study on the biodegradability and biocompatibility of WE magnesium alloys显示文摘 | Guixue Wang Shuping Ge Yang Shen Honggang Wang Qinglei Dong Qin Zhang Jiacheng Gao Yong Wang | 2012 | Materials Science & Engineering C2012，，8： | 1 |
| 11 | Dissimi- lar metal joining of aluminum alloy to galvanized steel with A1-Si, A1-Cu,A1-Si-Cu and Zn-A1 filler wires显示文摘 | Dong Honggang Hu Wenjin Duan Yuping | 2012 | J Mater Processing Techn2012，212，： | 1 |
| 12 | Dissimilar metal joining of aluminum alloy to galvanized steel with AI-Si, A1-Cu, A1-Si-Cu, and Zn-A1 filler wires显示文摘 | DONG Honggang HU Wenjin DUAN Yuping | 2012 | Journal of Materials Processing Technology2012，212，2： | 1 |
| 13 | Facile synthesis of Co-SBA-16 mesoporous molecular sieves with EISA method and their applications for hydroxylation of benzene显示文摘 | Yongli Dong Xinlin Zhan Xiaoyu Niu Jing Li Fulong Yuan Yujun Zhu Honggang Fu | 2014 | Microporous and Mesoporous Materials2014，，： | 1 |
| 14 | Dissimilar metal joining of aluminum alloy to galvanized steel with Al–Si, Al–Cu, Al–Si–Cu and Zn–Al filler wires显示文摘 | Honggang Dong Wenjin Hu Yuping Duan Xudong Wang Chuang Dong | 2011 | Journal of Materials Processing Tech2011，，2： | 1 |
| 15 | Few-layered MoS_(2)anchored on 2D porous C_(3)N_(4)nanosheets for Ptfree photocatalytic hydrogen evolution显示文摘The Pt-free photocatalytic hydrogen evolution(PHE)has been the focus in the photocatalytic field.The catalytic system with the large accessible surface and good mass-transfer ability,as well as the intimate combination of co-catalyst with semiconductor is promising for the promotion of the application.Here,we have reported the design of the two-dimensional(2D)porous C_(3)N_(4)nanosheets(PCN NS)intimately combined with few-layered MoS_(2)for the high-effective Pt-free PHE.The PCN NS were synthesized based on peeling the melamine–cyanuric acid precursor(MC precursor)by the triphenylphosphine(TP)molecular followed by the calcination,mainly due to the matched size of the(100)plane distance of the precursor(0.8 nm)and the height of TP molecular.The porous structure is favorable for the mass-transfer and the 2D structure having large accessible surface,both of which are positive to promote the photocatalytic ability.The few-layered MoS_(2)are grown on PCN to give 2D MoS_(2)/PCN composites based on anchoring phosphomolybdic acid(PMo_(12))cluster on polyetherimide(PEI)-modified PCN followed by the vulcanization.The few-layered MoS_(2)have abundant edge active sites,and its intimate combination with porous PCN NS is favorable for the faster transfer and separation of the electrons.The characterization together with the advantage of 2D porous structure can largely promote the photocatalytic ability.The MoS_(2)/PCN showed good PHE activity with the high hydrogen production activity of 4,270.8μmol·h^(−1)·g^(−1)under the simulated sunlight condition(AM1.5),which was 7.9 times of the corresponding MoS_(2)/bulk C_(3)N_(4)and 12.7 times of the 1 wt.%Pt/bulk C_(3)N_(4).The study is potentially meaningful for the synthesis of PCN-based catalytic systems. | Nan Wang Dongxu Wang Aiping Wu Siyu Wang Zhihui Li Chengxu Jin Youming Dong Fanyi Kong Chungui Tian Honggang Fu | 2023 | Nano Research2023，16，2： | 1 |
| 16 | Effective treatment of SARS-CoV-2-infected rhesus macaques by attenuating inflammation显示文摘Dear Editor,The COVID-19 pandemic caused by the SARS-CoV-2 virus has caused a significant public health crisis worldwide.Recent studies show that excessive inflammatory response is critical for SARS-CoV-2 pathogenesis and COVID-19 severity,'which can lead to acute lung injury(ALI)and acute respiratory distress syndrome(ARDS).2 One major factor for acute inflammation in SARS-CoV-2 infection is the inflammatory macrophages,which has been considered important for the production of large amounts of proinflammatory cytokines.'Autopsy identifhed an intense infltra-tion of macrophages in the lung tissues of fatal COVID-19 patients. | Shuaiyao Lu Jingjing Zhao Jiebin Dong Hongqi Liu Yinhua Zhu Honggang Li Liping Liu Yun Yang Shicheng Sun Yifan Song Yuan Zhao Ruiping She Tuoping Luo Hongkui Deng Xiaozhong Peng | 2021 | Cell Research2021，31，2： | 1 |
| 17 | Carbide precipitates and mechanical properties of medium Mn steel joint with metal inert gas welding显示文摘Medium Mn steel was metal inert gas(MIG)welded with NiCrMo-3 and 307 Si filler wires.The effect of filler wires on the microstructure and mechanical properties of joint was investigated,and the carbide precipitates were contrastively discussed.The results revealed that the microstructure of weld metal,heat-affected zone and base metal are austenite.Obvious grain coarsening occurred in the heat-affected zone(HAZ),and the maximum grain size grew up to 160μm.In HAZ,C and Cr segregated at grain boundaries,the carbides was identified as Cr7 C3.The dispersive(Nb,Mo)C phase was also found in weld metal with NiCrMo-3 filler wire.All the welded joints failed in HAZ during tensile tests.The tensile strength of welded joint with NiCrMo-3 filler wire was 675 MPa,which is much higher than that with307 Si filler wire.In comparison to base metal,higher microhardness and lower impact toughness were obtained in HAZ for these two welded joints,which was attributed to the precipitation of Cr7 C3 phase and grain coarsening.The impact toughness around the fusion line is the worst for these two welded joints. | Jiang Yang Honggang Dong Yueqing Xia Peng Li Xiaohu Hao Yaqiang Wang Wei Wu Baosen Wang | 2021 | Journal of Materials Science & Technology2021，，16： | 1 |
| 18 | Dissimilar Metal Joining of Aluminum Alloy to Galvanized Steel with AI-Si, AI-Cu, A1-Si-Cu and Zn-AI Filler Wires显示文摘 | Dong Honggang Hu Wenjin Duan Yuping | 2012 | Journal of Materials Pro cessing Technology2012，212，2： | 1 |
| 19 | Influence of post-weld heat treatment on microstructure and properties in heat-affected zone of KMN steel joint显示文摘 | Hao Xiaohu Dong Honggang Deng Dewei | 2014 | China Welding2014，23，2： | 0 |
| 20 | Numerical Simulation of Electromagnetic Force in Double-Sided Arc Welding Process显示文摘Up till now, most of the researchers believe that there are four kinds of forces in the weld pool convection, they aresurface tension, electromagnetic force, buoyancy and gas shear stress. So electromagnetic force is very important,especially when large current is applied. In most of previous models, the electromagnetic force is calculated analytically,in which only the axial component of current is considered. Actually the radial component of current has thesame effect, and may be advanced in some locations. In double-sided arc welding process, instead of the earthclamp, another torch is placed on the opposite side; the current will go from one torch, through the weld zone,to another torch. In this case, the current is more concentrated in the weld zone; the electromagnetic force willhave significant effect compared with conventional welding process. In this paper, a new method of numericalcalculation for electromagnetic force is developed, in which both axial and radial components are considered. And asan example, the distribution of electromagnetic force in double-sided arc welding is calculated. It demonstrates thatthis new method could give more accurate simulation of electromagnetic force, and is close to the actual process. | Hongming GAO Lin WU Honggang DONG | 2003 | Journal of Materials Science & Technology2003，19，z1： | 0 |
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