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| 1 | Selective laser melting(SLM)of CX stainless steel:Theoretical calculation,process optimization and strengthening mechanism显示文摘In the present work,selective laser melting(SLM)technology was utilized for manufacturing CX stainless steel samples under a series of laser parameters.The effect of laser linear energy density on the microstructure characteristics,phase distribution,crystallographic orientation and mechanical properties of these CX stainless steel samples were investigated theoretically and experimentally via scanning electron microscope(SEM),X-ray diffraction(XRD),electron backscatter diffraction(EBSD)and transmission electron microscope(TEM).Based on the systematic study,the SLM CX stainless steel sample with best surface roughness(Ra=4.05±1.8μm)and relative density(Rd=99.72%±0.22%)under the optimal linear density(η=245 J/m)can be obtained.SLM CX stainless steel was primarily constituted by a large number of fine martensite(α’phase)structures(i.e.,cell structures,cellular dendrites and blocky grains)and a small quantity of austenite(γphase)structures.The pre ferred crystallographic orientation(i.e.,<111>direction)can be determined in the XZ plane of the SLM CX sample.Furthermore,under the optimal linear energy density,the good combinations with the highest ultimate tensile strength(UTS=1068.0%±5.9%)and the best total elongation(TE=15.70%±0.26%)of the SLM CX sample can be attained.Dislocation strengthening dominates the strengthening mechanism of the SLM CX sample in as-built state. | Dongdong Dong Cheng Chang Hao Wang Xingchen Yan Wenyou Ma Min Liu Sihao Deng Julien Gardan Rodolphe Bolot Hanlin Liao | 2021 | Journal of Materials Science & Technology2021，，14： | 11 |
| 2 | Additive manufacturing of steel–copper functionally graded material with ultrahigh bonding strength显示文摘Additive manufacturing enables processing of functionally graded materials(FGMs)with flexible spatial design and high bonding strength.A steel-copper FGM with high interfacial strength was developed using laser powder bed fusion(LPBF).The effect of laser process parameters on interfacial defects was evaluated by X-ray tomography,which indicates a low porosity level of 0.042%therein.Gradient/fine dendritic grains in the interface are incited by high cooling rates,which facilitates interface strengthening.Multiple mechanical tests evaluate the bonding reliability of interface;and the fatigue tests further substantiate the ultrahigh bonding strength in FGMs,which is superior to traditional manufacturing methods.Mechanisms of the high interfacial bond strength were also discussed. | Chaolin Tan Youxiang Chew Guijun Bi Di Wang Wenyou Ma Yongqiang Yang Kesong Zhou | 2021 | Journal of Materials Science & Technology2021，，13： | 7 |
| 3 | Acoustic emission monitoring of rockbursts during TBM-excavated headrace tunneling at Jinping Ⅱ hydropower station显示文摘To better understand the mechanical properties of marble at Jinping II hydropower station, this paper examines the changes of brittle rocks in excavation damaged zones(EDZs) before and after excavation of tunnel with the tunnel boring machine(TBM). The paper attempts to employ the acoustic emission(AE) to study the AE characteristics and distribution of rockburst before and after TBM-excavated tunnel. It is known that the headrace tunnel #2, excavated by the drill-and-blast(D&B) method, is ahead of the headrace tunnel #3 that is excavated by TBM method. The experimental sub-tunnel #2–1, about 2000 m in depth and 13 m in diameter, between the two tunnels is scheduled. In the experimental sub-tunnel #2–1, a large number of experimental boreholes are arranged, and AE sensors are installed within 10 m apart from the wall of the headrace tunnel #3. By tracking the microseismic signals in rocks, the location, frequency, quantity, scope and intensity of the microseismic signals are basically identifed. It is observed that the AE signals mainly occur within 5 m around the rock wall, basically lasting for one day before tunnel excavation and a week after excavation. Monitoring results indicate that the rockburst signals are closely related to rock stress adjustment. The rock structure has a rapid self-adjustment capacity before and after a certain period of time during tunneling. The variations of rock stresses would last for a long time before reaching a fnal steady state. Based on this, the site-specifc support parameters for the deep tunnels can be accordingly optimized. | Wuwei Cheng Wenyou Wang Shiqiang Huang Peng Ma | 2013 | Journal of Rock Mechanics and Geotechnical Engineering2013，5，6： | 6 |
| 4 | Intercropping of Sonchus asper and Vicia faba affects plant cadmium accumulation and root responses显示文摘The cadmium(Cd)pollution of farmland soil is serious in the world.The present study investigated the effects of intercropping Vicia faba and the hyperaccumulator Sonchus asper on the Cd accumulation and root responses(morphology and secreted organic acids)of plants grown on soil from a mining area in Yunnan Province,China,under different Cd stress levels(0,50,100,and 200 mg kg-1).Intercropping increased the biomass of both S.asper and V.faba,as well as the Cd accumulation and Cd transfer coefficient from roots to shoots of S.asper,but decreased those of V.faba in the 200 mg kg-1Cd treatment.The Cd concentrations in roots,shoots,and grains from intercropped V.faba plants were positively correlated(P<0.05)with the N,N-diethyl phenylacetamide-extractable Cd content in soil.In the 50 mg kg-1Cd treatment,intercropping decreased citric and malic acids in root secretions of S.asper.Intercropped V.faba secreted more citric,oxalic,acetic,and malic acid compared with S.asper.Intercropping also increased root length and root surface area of both S.asper and V.faba.At 50 mg kg-1Cd,root length for S.asper was higher than that at 0 mg kg-1Cd,whereas V.faba roots had significantly decreased length and mean diameter.Intercropping of S.asper and V.faba is suggested as an in situ phytoremediation strategy of Cd-contaminated soils and may improve the food quality of V.faba. | Yanqun ZU Li QIN Fangdong ZHAN Jiong WU Yuan LI Jianjun CHEN Jixiu WANG Wenyou HU | 2020 | Pedosphere2020，30，4： | 6 |
| 5 | Effect of Bionic Unit Shapes on Solid Particle Erosion Resistance of ZrO2-7wt%Y2O3 Thermal Barrier Coatings Processed by Laser显示文摘 | Panpan Zhang Fuhai Li Xiaofeng Zhang Zhihui Zhang Chaolin Tan Luquan Ren Yueliang Wang Wenyou Ma Min Liu | 2018 | Journal of Bionic Engineering2018，15，3： | 4 |
| 6 | Design method with controllable velocity direction at throat for inward-turning inlets显示文摘In the design of a hypersonic inward-turning inlet by applying the traditional basic flowfield, a reflected shock-wave is formed in the isolator due to the continuous reflection of the cowlreflected shock wave in the basic flow-field, which interacts with the boundary layer to produce a considerable influence on the performance of the inlet. Here, a basic flow-field design method that can control the velocity direction at the throat section is developed, and numerical simulations are conducted to demonstrate the effectiveness of this method. The method presented in this paper can achieve the absorption of the reflected waves at the shoulder of the basic flow-field by adjusting the variation law of the center radius in the basic flow-field, and a smooth transition between the compression surface and the isolator can also be produced. The Mach number and total pressure recovery coefficient of the inlet designed according to this method are 3.00 and 0.657, respectively, at design point(the incoming flow Mach number Ma1= 6.0). The results show that with this method, the inlet can efficiently weaken both the reflection of the shock wave and the interaction between the boundary layer and the reflected shock waves, which improves the aerodynamic performance of the inlet. | Wenyou QIAO Anyuan YU Wei GAO Weixing WANG | 2019 | Chinese Journal of Aeronautics2019，32，6： | 4 |
| 7 | One-pot aqueous synthesis of composition-tunable near infrared emitting Cu doped Cd S quantum dots as fluorescence imaging probes in living cells显示文摘 | Zhang Fei He Xiwen Li Wenyou | 2012 | Journal of Materials Chemistry2012，22，22： | 1 |
| 8 | Adsorption of ionic liquid onto halloysite nanotubes: Mechanism and reinforcement of the modified clay to rubber显示文摘 | Guo Baochun Liu Xiaoliang Zhou Wenyou | 2010 | Journal of Macromolecular Science ( Part B ) : Physics2010，49，5： | 1 |
| 9 | Determination of nucleic acids using rivanol as the fluorescent probe in the presence of SDS显示文摘 | LI Wenyou XU Jingou HE Xiwen | 2000 | Anal Lett2000，33，15： | 1 |
| 10 | Molecularly im- printed polymer prepared with bonded -eyclodextrinand acrylamide on functionalized silica gel for selective recog- nition of tryptophan in aqueous media显示文摘 | Lei Qin He Xiwen Li Wenyou | 2008 | Journal of Chromatography A2008，1187，： | 1 |
| 11 | Factors affecting HCH and DDT in soils around watersheds of Beijing reservoirs, China显示文摘 | Wenyou Hu Yonglong Lu Tieyu Wang Wei Luo Xiang Zhang Jing Geng Guang Wang Yajuan Shi Wentao Jiao Chunli Chen | 2010 | Environmental Geochemistry and Health2010，，2： | 1 |
| 12 | Molecularly im- printed polymer prepared with bonded 13-cyclodextrin and acrylamide on functionalized silica gel for selective rec- ognition of tryptophan in aqueous media 显示文摘 | Qin Lei He Xiwen Li Wenyou | 2008 | Journal of Chromatography A2008，1187，12： | 1 |
| 13 | Experimental Research on 32Cr3Mo1V Substrate AntiMolten Aluminum Corrosion by Laser Treatment显示文摘Two types of layers were prepared by means of laser surface alloying process using High-power Transverse Flow CO2 laser beam with different additions,which were pure Cr powder and Co alloy powder on the 32Cr3Mo1V substrate.The unique characters of laser treatments,such as microstructure,distribution of elements,and micro-hardness were studies in thorough;furthermore,the abilities anti-molten aluminum's corroding of the layers were tested in 700 centigrade molten aluminum.The results indicate that both laser treated layers can enforce the ability anti-corroding of the molten aluminum on 32Cr3Mo1V substrate,while the laser alloying layer with Cr powder shows the most advantage of anti-aluminum corrosion character,i.e.the layer does not be corroded at all in the corrosion experiment.And the diffused thickness of aluminum in the layers by laser alloying process with Co powder is half below that of in the 32Cr3Mo1V substrate. | Li Fuhai Tong Xin Min Liu Ma Wenyou Chen Xingchi | 2012 | 稀有金属材料与工程2012，41，S1： | 1 |
| 14 | Crystallization Kinetics of Poly(L-lactide)/Carbonated Hydroxyapatite Nanocomposite Microspheres显示文摘 | Zhou Wenyou Duan Bin Wang Ming | 2009 | Journal of Applied Polymer Science2009，113，41： | 1 |
| 15 | 显示文摘 | Qin Lei He Xiwen LI Wenyou | 2008 | Journal of Chroma- tography a2008，1187，1： | 1 |
| 16 | Poly(lactide)–vitamin E derivative/montmorillonite nanoparticle formulations for the oral delivery of Docetaxel显示文摘 | Si-Shen Feng Lin Mei Panneerselvan Anitha Chee Wee Gan Wenyou Zhou | 2009 | Biomaterials2009，，19： | 1 |
| 17 | Molecularly imprinted polymer prepared with bonded β cyclodextrin and aerylamide on funetionalized silica gel for selective recognition of tryptophan in aqueous media 显示文摘 | Qin Lei He Xiwen Li Wenyou Zhang Yukui | 2008 | Journal of Chromatography A2008，1187，： | 1 |
| 18 | Perfluorinated compounds in surface waters from Northern China: Comparison to level of industrialization显示文摘 | Tieyu Wang Jong Seong Khim Chunli Chen Jonathan E. Naile Yonglong Lu Kurunthachalam Kannan Jinsoon Park Wei Luo Wentao Jiao Wenyou Hu John P. Giesy | 2011 | Environment International2011，，： | 1 |
| 19 | A novel silk-based artificial ligament and tricalcium phosphate/polyether ether ketone anchor for anterior cruciate ligament reconstruction – Safety and efficacy in a porcine model显示文摘 | Xiang Li Jiankang He Weiguo Bian Zheng Li Wenyou Zhang Dichen Li Jess G. Snedeker | 2014 | Acta Biomaterialia2014，，： | 1 |
| 20 | Planning S-cur- ves in the coordinated PTP motion of multiple-ax is machines under velocity acceleration and jerk constraints显示文摘 | ROU Chiwei SHIN ChingIong LEE Wenyou | 2003 | Journal of the Chinese Institute of Electrical Engineering2003，10，3： | 1 |
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