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| 1 | A UNIVERSAL ANALYTIC POTENTIAL-ENERGY FUNCTION BASED ON A PHASE FACTOR显示文摘Using a field equation with a phase factor, a universal analytic potential-energy function applied to the interactions between diatoms or molecules is derived, and five kinds of potential curves of common shapes are obtained adjusting the phase factors. The linear thermal expansion coefficients and Young’s moduli of eleven kinds of face-centered cubic (fcc) metals - Al, Cu, Ag, etc. are calculated using the potential-energy function; the computational results are quite consistent with experimental values. Moreover, an analytic relation between the linear thermal expansion coefficients and Young’s moduli of fcc metals is given using the potential-energy function. Finally, the force constants of fifty-five kinds of diatomic moleculars with low excitation state are computed using this theory, and they are quite consistent with RKR (Rydberg-Klein-Rees) experimental values. | C.F. Yu* Deptartment of Physics, College of Science, Xi’an Polytechnic University, Xi’an 710048, China K. Yan Xi’an Modern Nonlinear Science Applying Institute, Xi’an 710061, China D.Z. Liu Section 602, Second Artillery Institute of Engineering, Xi’an 710025, China | 2006 | Acta Metallurgica Sinica(English Letters)2006，19，6： | 11 |
| 2 | SUPERPLASTICITY AND DIFFUSION BONDING OF IN718 SUPERALLOY显示文摘The superplasticity and diffusion bonding of IN718 superalloy were studied in this article. The strain rate sensitivity index m was obtained at different temperatures and various initial strain rates using the tensile speed mutation method; m reached its maximum value 0.53 at an initial strain rate of 1×10-4s-1 at 1253K. The diffusion bonding parameters, including the bonding temperature T, pressure p, and time t, affected the mechanism of joints. When the bonded specimen with 25μm thick nickel foil interlayer was tensile at room temperature, the shear fracture of the joints with nickel foil interlayer took place at the IN718 part. Microstructure study was carried out with the bonded samples. The microstructure shows an excellent bonding at the interfaces. The optimum parameters for the diffusion bonding are: T = 1273-1323K, p = 20-30MPa, t = 45-60min. | W.B. Han K.F. Zhang B. Wang D.Z. Wu | 2007 | Acta Metallurgica Sinica(English Letters)2007，20，4： | 8 |
| 3 | THE MICROSTRUCTURAL BANDING IN THE CENTER OF HOT ROLLLNG STRIP显示文摘The microstructural banding in steels is often found in hot rolling strips, which plays a very im- portant role in mechanical properties. Much work has been done to investigate how the mi- crostructural banding is formed during hot rolling. In the present study, the microstructure of hot rolling strips was examined in term of optical microscopy and transmission electron mi- croscopy. Electron probe microanalysis was also used to decide the distribution of microchemi- cal bands, by this means, the phases in these strips were found to be ferrite and pearlite. The average distance between the carbon lamellas in pearlite is about 0.06-0.1μm. It is also shown that microstructural banding in hot rolled carbon steel was closely related to the segregation of manganese and silicon into those bands. Based on the transformation kinetic, the simulated re- sults pointed out that the thermodynamic stability of austenite would increase with the increasing of Mn, which led to a decrease of ferrite growth rate. The effect of Mn on the decomposition of austenite is attributed to segregation of Mn atoms along the ferrite/austenite phase boundary which causes a strong solute drag effect. The addition of Mn to steel decreases the activity of austen- ite, thereby it is beneficial to the formation of non-equilibrium phase, such as degenerate pearlite. The formation of banded structure on the hot rolled process was discussed. | C.L. Mo Y. T. Zhang D.Z. Li Y. Y. Li | 2005 | Acta Metallurgica Sinica(English Letters)2005，18，5： | 4 |
| 4 | MODELING OF FERRITE GRAIN GROWTH OF LOW CARBON STEELS DURING HOT ROLLING显示文摘For most commercial steels the prediction of the final properties depends on accurately calculating the room temperature ferrite grain size. A grain growth model is proposed for low carbon steels Q235B during hot rolling. By using this model, the initial ferrite grain size after continuous cooling and ferrite grain growing in coiling procedure can be predicted. Finally, in-plant trials were performed in the hot strip mill of Ansteel. The calculated final ferrite grain sizes are in good agreement with the experimental ones. It is helpful both for simulation of microstructure evolution and prediction of mechanical properties. | Y.T. Zhang, D.Z. Li and Y.Y. LiInstitute of Metal Research, The Chinese Academy of Sciences, Shenyang 110016, China Manuscript received 26 December 2001 in revised form 9 February 2002 | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，3： | 4 |
| 5 | FINITE ELEMENT ANALYSIS FOR MICROSTRUCTURE EVOLUTION IN HOT FINISHING ROLLING OF STEEL STRIPS显示文摘A computer model that describes the evolution of microstructures during the hot finishing rolling of SS400 steel has been proposed. It has been found that the microstructure strongly depends on processing of materials and on their parameters,which affected the history of the thermomechanical variables,such as temperature,strain,and strain rate. To investigate the microstructural evolutions during the hot finishing rolling process,the rigid-thermoviscoplastic finite element method(FEM) has been combined with dynamic recrystallization,static recrystallization,and grain growth models. The simulation results show a good agreement with those from the prediction software online. | Z.D. Qu S.H. Zhang D.Z. Li Z.T. Wang | 2007 | Acta Metallurgica Sinica(English Letters)2007，20，2： | 2 |
| 6 | Spatial root distribution of mature apple trees under drip irrigation system显示文摘 | D.I. Sokalska D.Z. Haman A. Szewczuk J. Sobota D. Dereń | 2008 | Agricultural Water Management2008，，6： | 2 |
| 7 | Effect of delta ferrite on impact properties of low carbon 13Cr–4Ni martensitic stainless steel显示文摘 | P. Wang S.P. Lu N.M. Xiao D.Z. Li Y.Y. Li | 2010 | Materials Science & Engineering A2010，，13： | 2 |
| 8 | Gastrointestinal motility disorders and acupuncture显示文摘 | Jieyun Yin Jiande D.Z. Chen | 2010 | Autonomic Neuroscience: Basic and Clinical2010，，1： | 2 |
| 9 | Growth modes of individual ferrite grains in the austenite to ferrite transformation of low carbon steels显示文摘 | D.Z. Li N.M. Xiao Y.J. Lan C.W. Zheng Y.Y. Li | 2007 | Acta Materialia2007，，18： | 1 |
| 10 | Evolutionary Game Analysis of Co-opetition Relationship between Regional Logistics Nodes显示文摘 | D.Z. Wang M.X. Lang Y. Sun | 2014 | Journal of Applied Research and Technology2014，，： | 1 |
| 11 | Association of AFLP markers with downy mildew resistance in autotetraploid alfalfa显示文摘 | D.E. Obert D.Z. Skinner D.L. Stuteville | 2000 | Molecular Breeding2000，，3： | 1 |
| 12 | Phase Change Heat Transfer Simulation for Boiling Bubbles Arising from a Vapor Film by the VOSET Method显示文摘 | D.Z. Guo D.L. Sun Z.Y. Li W.Q. Tao | 2011 | Numerical Heat Transfer Part A: Applications2011，，11： | 1 |
| 13 | Electronic and optical properties of ZnO thin film under in-plane biaxial strains: Ab initio calculation显示文摘 | Y.Q. Gai B. Yao Y.M. Lu D.Z. Shen J.Y. Zhang D.X. Zhao X.W. Fan | 2007 | Physics Letters A2007，，1： | 1 |
| 14 | 查看详情显示文摘 | Zhang P Guo Z.P Huang Y.D Jia D.Z. Liu H K | | 0，，： | 1 |
| 15 | Microstructure and corrosion resistance behavior of ceramic coatings on biomedical NiTi alloy prepared by micro-arc oxidation显示文摘 | J.L. Xu F. Liu F.P. Wang D.Z. Yu L.C. Zhao | 2008 | Applied Surface Science2008，，20： | 1 |
| 16 | The corrosion resistance behavior of Al 2 O 3 coating prepared on NiTi alloy by micro-arc oxidation显示文摘 | J.L. Xu F. Liu F.P. Wang D.Z. Yu L.C. Zhao | 2008 | Journal of Alloys and Compounds2008，，1： | 1 |
| 17 | Gastric electrical stimulation with short pulses reduces vomiting but not dysrhythmias in dogs显示文摘 | Jiande D.Z. Chen Liwei Qian Hui Ouyang Jieyun Yin | 2003 | Gastroenterology2003，，2： | 1 |
| 18 | In vitro evaluation of diamond-like carbon coatings with a Si/SiC x interlayer on surgical NiTi alloy显示文摘 | C.L. Liu Paul K. Chu D.Z. Yang | 2006 | Nuclear Inst and Methods in Physics Research B2006，，1： | 1 |
| 19 | Supplemental Choline for Prevention and Alleviation of Fatty Liver in Dairy Cattle显示文摘 | R.F. Cooke N. Silva Del Río D.Z. Caraviello S.J. Bertics M.H. Ramos R.R. Grummer | 2007 | Journal of Dairy Science2007，，5： | 1 |
| 20 | Modeling subsurface water resource systems involving heterogeneous porous media using the variational multiscale formulation显示文摘 | D.Z. Turner K.B. Nakshatrala M.J. Martinez P.K. Notz | 2011 | Journal of Hydrology2011，，： | 1 |
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