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Microstructure Evolution of Undercooled Austenite during Deformation for Medium-Carbon Si-Mn Steel Yunli Feng1,a , ShaoQiang Yuan2,b and Meng Song 1,c 1Metal Material Engineering Department, Hebei Polytechnic University, Tangshan Hebei, 063009 China 2Department of Electro-mechanical Engineering, Tangshan College, Tangshan Hebei, 063000 China afengyl@heut.edu.cn,bshaoqiangyuan@163.com, csm_162@yahoo.com.cn Keywords: Medium-carbon Si-Mn steel, Undercooled austentite, Microstructure evolution, Deformation induced transformation, Carbide spheroidization Abstract.
In this paper,microstructure evolution of undercooled austenite during deformation for has been studied, Also, the carbides spheroidized mechanism during deformed process has been discussed, it provide the necessary theoretical bases on producting low-cost, high strength toughness steel. 2 Test materials and methods Transfer bar of medium-carbon Si-Mn steel producted by industria are investigated in this experiment, And it’s composition(in mass fraction) areas follows: 0.37C, 0.80Si, 1.00Mn, 0.011S, 0.015P.
Acknowledgements The authors express their gratitude to the financial support of the Natural Science Foundation.
Journal of University of Science and Technology Beijing，Vol. 30 (2008) No.4, p. 368-373
[4] Park J, Song D H, Lee D,Choo W Y: Ultrafine Grained Materials Ⅱ，Settle:The Minerals,Metals & Materials Society, p. 275,(2002) [5] Storojeva L,Kaspar R,Ponge D:Mater Sci Forum, p. 426-432,(2003) [6] Kotobu Nagai: Second Phase of Ultra Steel Project at NIMIS.

Precision control calculation method and forming technology of aluminum alloy base LI Guo-Jun1, a, REN Jin-Ru2,b ,ZHANG Zhi-Min3,c 1,3College of Materials Science & Engineering, North University of China,Taiyuan 030051 China 2Shanxi Pingyang Heavy Industry Machine Co., LTD.
The raw material was prepared in the same volume and the materials flow into the hole through the flow channel in three state stresses.
The radial and tangential stress is much lager than the axial stress, so the materials and mould will have a good fit in the backward flow.
The materials on both sides of the edges on the stage aggregate to the edges, which formed the large rounded corners and sharp edges.
[2] SHAN D B, XU W C, LU Y: Journal of Materials Processing Technology, Vol.151 (2004), p.289-293

Materials and Methods Experimental materials: Some fresh white-eggshells, qualities:55~80g, supply locations: farmer's market of Huazhong agricultural university; Experimental equipments:TMS-PRO ;the electronic scale;vernier calipers, etc;Experimental process: The duck egg will easy moving if it is directly set on the plate in the compression test, the egg salver will provide an accurate positioning for rolling eggs.
British Poultry Science, 2002, 43 (2): 238-244
Journal of Sound and Vibration, 2003, 266 (3): 711-721
Mechanics and materials. 2011, 86 (2011):218-221
Compression test of food materials of convex shape[S].

Test material Fig. 2.
Science, Vol. 24, (2008) 840-844. [2] D.
[3] Sakai, T., Belyakov, A., Kaibyshev, R., Miura, H., Jonas, J.J., Dynamic and Post-Dynamic Recrystallization under Hot, Cold and Severe Plastic Deformation Conditions, Progress in Materials Science, 2013
[4] Csaba Póliska, Zoltán Gácsi, Péter Barkóczy, The Effect of Melt Flow on the Dendrite Morphology, MATERIALS SCIENCE FORUM 508 (2006) 169-174
Tan, Dynamic continuos recrystallization characteristics in two stage deformation of Mg-3Al-1Zn alloy sheet, Materials Science and Engineering, A339, (2003) 124-132.

Fig.1 3D meshed model of the part Fig.2 Gating system and Cooling system of automobile bumper Material and process parameters Material PP/EPDM was chosen for plastic raw materials, and its brand is ABP-0948.
Material CO/0949, which is similar to ABP-0948 on physical properties, was chosen in numerical simulation.
The mold material is a CO/0949.
Table 1 Relationship between warpage and melt temperature Melt temperature[°C] 200 210 220 230 240 250 Warping[mm] 8.854 8.692 8.817 9.345 9.696 9.917 Fig.3The trends of warpage by the melt temperature Tab.1 and Fig.3 show the effect of melt temperature on the warpage during the range of allowing materials temperature.The results show the warpage decrease of the increase of the melt temperature in the beginning, but warpage deformation reduced slowly.
[5] Yuehua Gao, Xicheng Wang, “Surrogate-based process optimization for reducing warpage in injection molding,” Journal of Materials Processing Technology (in English), pp.1302–1309, 2009

Research and Application on the Crumb Rubber Modified Low-Noise Asphalt Pavement Zhang Zhixiang1, a, Liu Wei1, b and Li Xiaoyan1, c 1 Jiangsu Transportation Research Institute, Nanjing, China azzx@jstri.com, blw@jstri.com, clxy97@jstri.com Keywords: Asphalt rubber, Low-noise asphalt pavement, Tire-pavement noise Abstract: In this paper, the research of Low-Noise Asphalt Pavement（LNAP）mix design with the crumb rubber has been studied, including materials selection, gradation selection, asphalt content selection, performance tests, and so on.
The LNAP pavement can get the low noise by the special material selection and mix design.
Noise reduction and environmental protection asphalt technology research, Jiangsu transportation science and technology program, 2008
Indoor Measurement of Porous Material Permeability Coefficient [J].
Journal of highway and transportation research and development, 2002(4), P31-34

Method and Materials Wastewater.
Zhang, Journal of Zhejiang University ScienceA 8 (2007) 1118-1125
Lu, Research of Environmental Sciences 18 (2005) 74-77.
Lv, Environmental Science And Technology22 (2009) 63－67.
Li, Sichuan Building Science 34 (2008) 179-181.

Influence of Sensitive cavity structure on the Resolution of fluidic gyroscope Baoli Zhang1, a, Linhua Piao1, b, Jin Tang2 and Chuanzhi Mei1 1Beijing Key Laboratory for sensor, Beijing Information Science & Technology University, Beijing 100101, China 2Faculty of science, Beijing Information Science & Technology University, Beijing 100101, China ablzhang88@gmail.com, bbjplh@bistu.edu.cn Keywords: Streamlined cavity, Finite Element Method, Velocity difference, Resolution Abstract.
Acknowledgements Project Fund: National Natural Science Foundation of China (60772012); Projects Funded By New Century Excellent Talents (NCET); Open Project funded by Beijing Key Laboratory; Talents Training Project funded by Beijing New Century; Modern Control Technology funded by Ministry of Education Key Laboratory; Science and Technology Common Project of Beijing Municipal Commission of Education (KM201110772020); The Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions.
Zhang: Modern Piezo-electricity (Science Press, Beijing 2002).
Zhang: Journal of Beijing Information Science & Technology University Vol. 2 (2009), p. 1.
Zhang: Electronic Components & Materials Vol. 1 (2004), p. 22.

The superfine aluminum hydroxide made from coal gangue could be used as flame retardant of high molecular materials such as plastics, synthetic resin, polymer and synthetic rubber; or as filling material of artificial marble, agate, toothpaste; used for production chemical products such as aluminum sulfate, alum, aluminum fluoride, aluminum chloride hydrate, sodium aluminate; and for production of stomach acid resistant drugs.
Take the weight fraction of below 0.01mm particles in the sample as the pulverization ratio. 2.2 Leaching of Alumina from Activated Coal Gangue Self- pulverization Material Add 100g coal gangue self-pulverization material into the reactor, and extract the alumina component from it by the form of NaAlO2 after intensive mixing according to the designed Na2CO3 concentration, leaching temperature, leaching time and material water ratio.
Science and Technology Department of Sichuan Province, Sep. 2002
Journal of Kunming Institute of Technology, 1997,　22(1): 22-24
Master’s degree paper of Southwest University of Science and Technology, June, 2003, Mianyang, Sichuan.

The Identification of Green Tea Based on Feature Extraction Rongxiang Zhang, Wei Zhang, Xiaohui Zhao, Yanwei Zhang, Guang Li, and Xiaowei Li Key Laboratory of Photo-Electricity Information Materials of Hebei Province College of Physics Science and Technology, Hebei University Baoding, China zrx@hbu.edu.cn Keywords: Feature Extraction; Identification; Green Tea; Infrared Spectroscopy Abstract.
However, the former is vulnerable to subjective effects, and the second can detect single component, but it is difficult to analyze the multi-component material.
Acknowledgment This experimental group thanks the Hebei Province Natural Science Foundation (F2010000309); Science and Technology Research Guide Project of Higher School of Hebei Province (Z2011132); Postdoctoral Foundation of Hebei University.
Wang, Application of near infrared spectra in rapid inspection of cotton content, Journal of Jiangsu University (Natural Science Edition). 28(2007) 185–188
Ye, Tea Chemistry, University of Science and Technology of China Press, 2005