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| 1 | 临淄郎家庄一号东周殉人墓显示文摘郎家庄一号东周殉人墓位于淄博市旧临淄县城东南一公里郎家庄的村旁,北距齐国国都临淄故城南城墙半公里左右,是齐故城周围数以百计的'(土冢)子'中的一座,旧志中曾有记载(图一;图版一,1)。此墓地面上原有高大的夯土堆。据当地群众记忆,在抗日战争时期,夯土堆尚高10米左右。当时伪军曾在(土冢)子周围挖战壕,后因长期取土,逐渐夷为平地。 | The Shantung Provincial Museum | 1977 | 考古学报1977，，1： | 112 |
| 2 | Numerical modeling and experimental investigation of diffusion brazing SS304/BNi-2/ SS304 joint显示文摘 | Chen Hu Gong Jiangming Tu Shantung | 2009 | Science and Technology of Welding and Joining2009，14，1： | 1 |
| 3 | In situ monitoring on prestress losses in the reinforced structure with fiber-optic sensors显示文摘 | XUAN Fuzhen TANG Hongwei TU Shantung | 2009 | Measurement:Journal of the International Measurement confederation2009，42，1： | 1 |
| 4 | Experimental study of flow patterns in deoiling hydrocyclone 显示文摘 | BAI Zhishan WANG Hualin TU ShanTung | 2009 | Minerals Engineering2009，22，4： | 1 |
| 5 | Experimental studies on simultaneous removal of CO2 and SO2 in a polypropylene hollow fiber membrane contactor显示文摘 | LYU Yuexia YU Xinhai TU Shantung | | 0，，11： | 1 |
| 6 | 有机营养在大豆落花落荚中的作用的初步研究显示文摘 | Agricultural Experiment Station Nantsun Commune Weih County Shantung and Experiment Group of Liutuan Production Brigade Nantsun Commune Weih County Shantung | 1976 | Journal of Integrative Plant Biology1976，，01： | 1 |
| 7 | Removal of catalystparticles from oil slurry by hydrocyclone显示文摘 | Bai Zhishan Wang Hualin Tu Shantung | 2010 | Separation Science andTechnology2010，44，9： | 1 |
| 8 | Techno-economic study on com- pact heat exchangers 显示文摘 | Zhou Guoyan Wu En Tu Shantung | 2008 | International Journal of Energy Research :2008，32，： | 1 |
| 9 | Open to air synthesis of monodisperse CdSe nanocrystals via microfluidic reaction and its kinetics显示文摘 | Luan Weiling Yang Hongmei Tu Shantung | 2007 | Nanotechnology2007，18，17： | 1 |
| 10 | Precipitation and heterogeneous strengthened CoCrNi-based medium entropy alloy with excellent strength-ductility combination from room to cryogenic temperatures显示文摘The improved understandings of the mechanical properties as well as deformation mechanisms at cryogenic temperatures are the prerequisite for realizing the application of any new engineering materials to cryogenic industries.Here,a(CoCrNi)_(94)Al_(3)Ti_(3) medium entropy alloy(MEA)with nanoscale L12 coherent precipitates and heterogeneous grain structures was prepared by codoping Al and Ti elements with subsequent cold rolling and heat treatment processes.The mechanical properties were evaluated at the temperature range of 293–113 K.The ultimate strength of the MEA increases almost linearly from 1326 to 1695 MPa as the temperature decreases from 293 to 113 K,while the total elongation remains approximately constant of~35%.The underlying deformation and strengthening mechanisms were investigated using various characterization techniques.Due to the effect of co-doped Al/Ti on channel width of the matrix and the increasing critical twinning stress induced by heterogeneous ultrafine grain size,the formation of deformation twins is inhibited at all temperatures.Consequently,only a slight increase of the deformation twins and stacking faults in the deformed specimens with a decreasing temperature,which leads to the relative temperature-independence of the ductility.The dislocation cutting mechanism of L1_(2) coherent precipitates and the heterodeformation induced(HDI)hardening both significantly contribute to the strain hardening so that an excellent combination of strength and ductility is obtained.Additionally,the evolution of lattice friction stress with deformation temperature is determined by quantitative analysis,indicating an approximately linear relationship between the lattice friction and temperature.The present work provides new insights into the strategy of achieving outstanding strength-ductility synergy of the MEA under the wide temperature range by coupling heterogeneous ultrafine-grained structure and coherent precipitation strategy. | XIE Yu ZHAO PengCheng TONG YongGang TAN JianPing SUN BinHan CUI Yan WANG RunZi ZHANG XianCheng TU ShanTung | 2022 | Science China(Technological Sciences)2022，65，8： | 0 |
| 11 | The Influence of Crystallographic Orientation and Grain Boundary on Nanoindentation Behavior of Inconel 718 Superalloy Based on Crystal Plasticity Theory显示文摘The crystal plasticity finite element method(CPFEM)is widely used to explore the microscopic mechanical behavior of materials and understand the deformation mechanism at the grain-level.However,few CPFEM simulation studies have been carried out to analyze the nanoindentation deformation mechanism of polycrystalline materials at the microscale level.In this study,a three-dimensional CPFEM-based nanoindentation simulation is performed on an Inconel 718 polycrystalline material to examine the influence of different crystallographic parameters on nanoindentation behavior.A representative volume element model is developed to calibrate the crystal plastic constitutive parameters by comparing the stress-strain data with the experimental results.The indentation force-displacement curves,stress distributions,and pile-up patterns are obtained by CPFEM simulation.The results show that the crystallographic orientation and grain boundary have little influence on the force-displacement curves of the nanoindentation,but significantly influence the local stress distributions and shape of the pile-up patterns.As the difference in crystallographic orientation between grains increases,changes in the pile-up patterns and stress distributions caused by this effect become more significant.In addition,the simulation results reveal that the existence of grain boundaries affects the continuity of the stress distribution.The obstruction on the continuity of stress distribution increases as the grain boundary angle increases.This research demonstrates that the proposed CPFEM model can well describe the microscopic compressive deformation behaviors of Inconel 718 under nanoindentation. | Wenbo Zhu Guangjian Yuan Jianping Tan Shuai Chang Shantung Tu | 2023 | Chinese Journal of Mechanical Engineering2023，36，4： | 0 |
| 12 | Integration of interlayer surface enhancement technologies into metal additive manufacturing:A review显示文摘Additive manufacturing(AM)has the advantages of rapid prototyping,high design freedom,and flexible manufacturing,while the mechanical properties of additively manufactured products are not uniform due to inherent defects and residual stresses.Integration of interlayer surface enhancement(SE)technologies into AM is a potential solution to improve the microstructure,close defects,residual stress state,mechanical properties,and chemical properties of formed materials.This paper reviews the current literature on hybrid AM process through the combination of SE and AM,and proves the possibility of integrating SE technologies into AM from the technical level.Then the improvement effects of SE processes on AM parts are introduced in terms of microstructure,defects,residual stress,mechanical properties,and chemical properties.Finally,considering the commonly used directed energy deposition(DED)process and ultrasonic impact treatment(UIT),a closed-loop quality control framework for integration of interlayer UIT into the DED process is proposed.Future research directions to the hybrid AM and interlayer SE are pointed out. | Yufei Chen Xiancheng Zhang Donghong Ding Xiaowei Wang Kaiming Zhang Yixin Liu Tiwen Lu Shantung Tu | 2023 | Journal of Materials Science & Technology2023，，34： | 0 |
| 13 | Effects of post annealing on the microstructure,precipitation behavior,and mechanical property of a(CoCrNi)_(94)Al_(3)Ti_(3)medium-entropy alloy fabricated by laser powder bed fusion显示文摘The additive manufacturing of multi-principal element alloys has remarkable potential for industrial ap-plications.In this study,a(CoCrNi)_(94)Al_(3)Ti_(3)medium-entropy alloy(MEA)with adequate strength-ductility synergy was prepared via laser powder bed fusion.The microstructural evolution,mechanical property,and deformation mechanisms of the MEA were investigated after post annealing for a short period(0.5 h)at a temperature range of 773-1373 K using various microstructural characterization techniques and quantitative analysis.The static recrystallization temperature of the(CoCrNi)_(94)Al_(3)Ti_(3)MEA ranged from 973 to 1073 K.The average grain size first decreased and then increased,while the dislocation den-sity persistently decreased and texture gradually weakened with increasing annealing temperature.Cr-richσ-phase precipitates formed after 1073 K and then gradually dissolved at 1373 K,while Ni,Al,and Ti elements were aggregated to form a small amount of fine L1_(2)coherent precipitates with an aver-age diameter of approximately 70 nm at 1373 K.The evolution of the dislocation density,grain size,and precipitates significantly influenced the propensity of deformation twins and stacking faults,which consequently affected the strain hardening behavior and mechanical properties.The quantitative calcu-lation of strengthening mechanisms showed that dislocation strengthening played a dominant role at annealing temperatures below 1073 K,and it significantly weakened at 1373 K.Precipitation and grain boundary strengthening both markedly increased owing to the formation of precipitation particles and recrystallization-induced grain refinement after annealing at 1073 K. | Zhuang Li Pengcheng Zhao Tiwen Lu Kai Feng Yonggang Tong Binhan Sun Ning Yao Yu Xie Bolun Han Xiancheng Zhang Shantung Tu | 2023 | Journal of Materials Science & Technology2023，，4： | 0 |
| 14 | Achieving High Strength-plasticity of Nanoscale Lamellar Grain Extracted from Gradient Lamellar Nickel显示文摘Traditional metallic materials usually face a dilemma between high strength and poor strain hardening capacity.However,heterogeneous structured metallic materials have been found to obviously overcome the trade-of.Herein,gradient lamellar structure was fabricated through ultrasound-aided deep rolling technique in pure Ni with high stacking fault energy after heat treatment.The gradient lamellar Ni was successively divided into the four regions.In-situ micropillar compression tests were conducted in diferent regions to reveal the corresponding microscopic mechanical properties.Microscopic characterization techniques were performed to explore underlying deformation mechanisms and the efects of microstructural parameters on deformation behaviors.This work demonstrates that the micropillar with near nanoscale lamellar thickness possesses excellent strength and plasticity.On one hand,the reason for high strength of near nanoscale micropillar is that the strength of micropillar increases with the decrease of lamellar thickness according to the Hall-Petch efect.On the other hand,numerous lamellar grain boundaries perpendicular to the loading direction is found to hinder the motion of slip bands,resulting in great strain hardening capacity in the near nanoscale lamellar micropillar. | Zimeng Wang Yunfei Jia Yong Zhang Pei Tang Xiancheng Zhang Shantung Tu | 2022 | Chinese Journal of Mechanical Engineering2022，35，4： | 0 |
| 15 | Creep life assessment of aero-engine recuperator based on continuum damage mechanics approach显示文摘The creep life of an aeroengine recuperator is investigated in terms of continuum damage mechanics by using finite element simulations.The effects of the manifold wall thickness and creep properties of brazing filler metal on the operating life of the recuperator are analyzed.Results show that the crack initiates from the brazing filler metal located on the outer surface of the manifold with the wall thickness of 2 mm and propagates throughout the whole region of the brazing filler metal when the creep time reaches 34900 h.The creep life of the recuperator meets the requirement of 40000 h continuous operation when the wall thickness increases to 3.5 mm,but its total weight increases by 15%.Decreasing the minimum creep strain rate with the enhancement of the creep strength of the brazing filler metal presents an obvious effect on the creep life of the recuperator.At the same stress level,the creep rupture time of the recuperator is enhanced by 13 times if the mismatch between the minimum creep rate of the filler and base metal is reduced by 20%. | Pengpeng LIAO Yucai ZHANG Guoyan ZHOU Xiancheng ZHANG Wenchun JIANG Shantung TU | 2022 | Frontiers of Mechanical Engineering2022，17，4： | 0 |
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