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| 1 | A NOVEL APPROACH FOR THE PREDICTION OF SURFACE PROFILE OF OUTGOING WORKPIECE AND THE CALCULATION OF MEAN ROLL RADIUS IN ALLOY BAR ROLLING显示文摘In alloy bar rolling process, the component of alloyed steel influenced the spread coefficient greatly, therefore, the component influence coefficient m of different alloyed steel has been determined firstly to calculate the maximum spread. Then the curvature radius of stress free surface and the 'critical point on the contact boundary' have been solved, the surface profile of outgoing workpiece has been obtained. Furthermore, the formula of the equivalent contact section area has been proposed and the mean roll radius has been calculated. The bar rolling experiment and the rigid-plastic FEM (finite element method) simulation have been carried out to verify the novel approach. Compared with experimental data and simulation results, the novel approach can be used in setting processing parameter and design of finishing groove. | Y.G. Dong W.Z. Zhang J.F. Song | 2007 | Acta Metallurgica Sinica(English Letters)2007，20，1： | 9 |
| 2 | EXTRACTION KINETICS OF YTTRIUM WITH PURIFIED CYANEX 923 FROM NITRATE MEDIUM显示文摘Mass transfer and extraction kinetics of yttrium with the purified Cyanex 923 in n-heptane from nitrate medium have been investigated by using a constant interfacial cell with laminar flow at 298K. The interfacial adsorption properties of purified Cyanex 923-heptane-0.20mol/L (H, Na)NO3 were studied at 298K. The experimental results show that the mass transfer is controlled by diffusion and the chemical reactions are carried out in the interfacial zone. The extraction rates of yttrium were measured at different chemical compositions by varying ionic strength, pH values and the purified Cyanex 923 concentrations. The initial extraction rate equations were obtained. | H. Tong, Y.G. Wang, J.H. Lei, D.Q. Li, and P. TangDepartment of Applied Chemistry, Wuhan University of Technology, Wuhan 430070, China Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, The Chinese Academy of Sciences, Changchun 130022, China | 2003 | Acta Metallurgica Sinica(English Letters)2003，16，6： | 5 |
| 3 | SIMULATION OF THE MICROSTRUCTURE DISTRIBUTION OF HYDROGEN STORAGE ALLOY AND OPTIMAL DESIGN OF CASTING MOULDS显示文摘In this paper,a simulation model for the temperature field in the solidification process and microstructure distribution is presented. Then, the result of simulation for the final microstructure distribution is compared with experiment using 10-Kg ingot of MlNi3.55Al0.3Mn0.4CO0.75 (Ml: Lanthanum-rich Mischmetal) hydrogen stor- age alloy cast in a mould, which agrees with the experiment well. Finally, in order to obtain the expected as-cast microstructure distribution of 15-Kg ingot of MlNi3.55Al0.3Mn0.4Co0.75 alloy, the size of Cu mould is optimized using the model described. The optimized mould is then made and the alloy is cast in it, the expected as-cast microstructure distribution is obtained. | Q.A. Li, H.Q. Mo, Y.Z. Huo, G. Sang, Y.F. Chen, M.G. Han, Y.G. Chen and M.J. Tu Department of Metal Materials, Sichuan University, Chengdu 610065, China | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，2： | 4 |
| 4 | Microstructure and properties of Fe-based amorphous metallic coating produced by high velocity axial plasma spraying显示文摘 | X.Q. Liu Y.G. Zheng X.C. Chang W.L. Hou J.Q. Wang Z. Tang A. Burgess | 2009 | Journal of Alloys and Compounds2009，，： | 2 |
| 5 | EFFECTS OF TREATMENT TIME ON CORROSION OF DIFFUSION-ALLOYED COATINGS OF PURE MAGNESIUM显示文摘The corrosion resistance of pure magnesium with surface alloying layer obtained by a solid diffusion alloying technique has been analyzed. To establish the optimum treatment time, the experiments were performed at 480℃ for different solid diffusion time (8, 16, and 24h). The diffusion interaction effectiveness between Zn, Al mix powder and the sample surface, depending on the treatment time for diffusion at given temperatures, has an obvious influence on corrosion resistance and corrosion mechanism. Corrosion properties were studied using the constant immersion test (in 3.0% NaCl solution, temperature is (28±1)℃, and time is 96h). Optical microscopy (OM) and EDS (energy dispersive spectrum) composition analysis were used to examine the cross-sectional microstructural characteristics of alloyed layer of treated samples. It is shown that in comparison with the untreated samples, the treated ones possess a better corrosion resistance. The Al5Mg11Zn4 phase, which formed as a continuous phase due to the diffusion of Al, Zn, and Mg elements and subsequent interaction on the outermost layer of diffusion alloying zones (especially the samples treated for 24h at 480℃), was inert to the chloride solution compared with pure magnesium and acted as a corrosion barrier, and therefore the best corrosion resistance was obtained. This protective action of A_(l5)Mg_(11)Zn_4 phase was found to change with its amount, which was controlled by the diffusion time at given temperature. It was concluded that the continuous A_(l5)Mg_(11)Zn_4 phase (WP-zone) of the reacted layer in pure magnesium was beneficial from the point of view of corrosion resistance. | Y.P. Ma J. Li J. Zhu L. Yang Y.G. Liu Z.Y. Li F. Zhao | 2007 | Acta Metallurgica Sinica(English Letters)2007，20，1： | 2 |
| 6 | Mosquito repellent activity of essential oils of aromatic plants growing in Argentina显示文摘 | Y.G. Gillij R.M. Gleiser J.A. Zygadlo | 2007 | Bioresource Technology2007，，7： | 2 |
| 7 | Effect of flow velocity and entrained sand on inhibition performances of two inhibitors for CO 2 corrosion of N80 steel in 3% NaCl solution显示文摘 | X. Jiang Y.G. Zheng W. Ke | 2005 | Corrosion Science2005，，11： | 2 |
| 8 | CREEP BEHAVIOR OF γ-TiAl POLYSYNTHETICALLY TWINNED CRYSTALS显示文摘CREEPBEHAVIOROFγ-TiAlPOLYSYNTHETICALLYTWINNEDCRYSTALSY.G.Zhang;J.G.Lin;Y.J.ZhouandC.Q.Chen(DepartmentofMaterialsScienceandEng... | Y.G. Zhang J.G. Lin Y.J. Zhou and C.Q. Chen(Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics,Beijing 100083, China | 1996 | Acta Metallurgica Sinica(English Letters)1996，9，6： | 2 |
| 9 | Contact behavior of idealized granules bonded in two different interparticle distances: An experimental investigation显示文摘 | M.J. Jiang Y.G. Sun L.Q. Li H.H. Zhu | 2012 | Mechanics of Materials2012，，： | 1 |
| 10 | Microstructure and oxidation behavior of conventional and pseudo graded NiCrAlY/YSZ thermal barrier coatings produced by supersonic air plasma spraying process显示文摘 | C. Zhu Y.G. Wang L.N. An A. Javed P. Xiao G.Y. Liang | 2015 | Surface & Coatings Technology2015，，： | 1 |
| 11 | Effect of phosphorus on microstructure and growth manner of primary Mg 2 Si crystal in Mg 2 Si/Al composite显示文摘 | Q.D. Qin Y.G. Zhao W. Zhou P.J. Cong | 2006 | Materials Science & Engineering A2006，，1： | 1 |
| 12 | High temperature naphthenic acid corrosion and sulphidic corrosion of Q235 and 5Cr1/2Mo steels in synthetic refining media显示文摘 | D.R. Qu Y.G. Zheng H.M. Jing Z.M. Yao W. Ke | 2005 | Corrosion Science2005，，8： | 1 |
| 13 | Strontium modification and formation of cubic primary Mg 2 Si crystals in Mg 2 Si/Al composite显示文摘 | Q.D. Qin Y.G. Zhao C. Liu P.J. Cong W. Zhou | 2006 | Journal of Alloys and Compounds2006，，1： | 1 |
| 14 | Doping strategies for increased performance in BiFeO 3显示文摘 | V.A. Khomchenko D.A. Kiselev M. Kopcewicz M. Maglione V.V. Shvartsman P. Borisov W. Kleemann A.M.L. Lopes Y.G. Pogorelov J.P. Araujo R.M. Rubinger N.A. Sobolev J.M. Vieira A.L. Kholkin | 2009 | Journal of Magnetism and Magnetic Materials2009，，11： | 1 |
| 15 | Carbon fixation by biological soil crusts following revegetation of sand dunes in arid desert regions of China: A four-year field study显示文摘 | X.R. Li P. Zhang Y.G. Su R.L. Jia | 2012 | Catena2012，，： | 1 |
| 16 | Effects of TiC and Al 4 C 3 addition on combustion synthesis of Ti 2 AlC显示文摘 | C.L. Yeh Y.G. Shen | 2008 | Journal of Alloys and Compounds2008，，1： | 1 |
| 17 | Oxidation behavior of the Y 2 O 3 -modified aluminide coating on Ti–6Al–4V alloy显示文摘 | W. Zhou Y.G. Zhao W. Li B. Tian S.W. Hu Q.D. Qin | 2007 | Materials Science & Engineering A2007，，1： | 1 |
| 18 | Slurry erosion–corrosion behaviour of high-velocity oxy-fuel (HVOF) sprayed Fe-based amorphous metallic coatings for marine pump in sand-containing NaCl solutions显示文摘 | Y. Wang Y.G. Zheng W. Ke W.H. Sun W.L. Hou X.C. Chang J.Q. Wang | 2011 | Corrosion Science2011，，10： | 1 |
| 19 | Therapeutic Effects of Bone Marrow-Derived Mesenchymal Stem Cells Engraftment on Bleomycin-Induced Lung Injury in Rats显示文摘 | F. Zhao Y.F. Zhang Y.G. Liu J.J. Zhou Z.K. Li C.G. Wu H.W. Qi | 2008 | Transplantation Proceedings2008，，5： | 1 |
| 20 | Roles of grain boundary and dislocations at different deformation stages of nanocrystalline copper under tension显示文摘 | Y.G. Zheng H.W. Zhang Z. Chen C. Lu Y.-W. Mai | 2008 | Physics Letters A2008，，5： | 1 |
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