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Introduction The reinforced concrete material is one of the building materials widely used contemporary.
Journal of Shijiazhuang Railway Institute. 2006(1).
Science Press, China. 2011.
Journal of Wuhan University of Technology. 2008(6).
Journal of China University of Mining & Technology. 2006(1). 

Controlling research of the Pre-bending deformation before straightening and residual stresses after straightening for 100-meter Jianguo Wang 1, a, Lin Chen 1,b , Tongqing Li 2,a, Ge Li 1,c, Haiyan Cui 1,b and Zhongliang Tian 1,b 1Inner Mongolia University of Science and Techonlogy, Inner Mongolia, Baotou, 014010 2Sinostell Equipment and Engineering CO., LTD, Beijing, 100080 awjgkyc@imust.cn, bchenlin39805@163.com, clige@imust.cn Keywords: 100-meter heavy rail, bending deformation before straightening, straightening deformation, residual stress.
Lenard: Journal of Materials Processing Technology, Vol. 25 (1991), p.303
Hu: Journal of Wuhan University of Science and Technology, Vol. 26 (2003), p.224
Basu: Journal of Strain Analysis for Engineer Design, Vol. 39(2004), p.15
Chen: Journal of Iron Steel, Vol. 41(2006), p.457.

Test specimens and materials Specimens were divided into two concrete strength with C20 and C25 including 55 specimens, which 28 specimens with C20, 27 specimens with C25.specimen size was 100mm × 100mm × 300mm.
Materials and Structures, 1991,24: 425-450
International Journal of Impact Engineering 2008( 35): 319–335
ACI Materials Journal, 1998, 95(6):735~739
Journal of Harbin Institute of Technology, 2003, 35(8): 958-961.

The total resources include raw materials, finished products, equipments, staff, technology, fund and so on.
In addition supply of materials was another key factor to guarantee production efficiency.
Lehmusvaara: International Journal of Production Economics, Vol.78 (2002), pp.187-195
Abdi: Journal of the Franklin Institute, Vol.345 (2008) No.7, pp.731-747
Cheng: Journal of Ningbo University (NSEE), Vol.23 (2010) No.1, pp.73-79 (In Chinese).

Introduction Magnetorheological fluids (MRF) is a kind of intelligent materials, and can transform its state between liquid and solid under the action of a magnetic field in millisecond.
Experiment To ascertain the validity of the author-designed magnetorheometer, the MRF provided by Chongqing Instrument Materials Research Institute of China was tested.
Gorodkina: Journal of Magnetism and Magnetic Materials, Vol. 83 (1990), pp. 114-120
Zhao: Journal of Mechanical Engineering, Vol. 46 (2010), pp. 177-182 (in Chinese)
Dai: Chinese Journal of Scientific Instrument, Vol. 28(2007), pp. 774-778 (in Chinese)

Introduction Display application is always the main source of demand for light emitting diodes (LED), in such applications, LED do not require high heat dissipation, LED packaging resins and general base materials can be directly.
Summary Based on the theoretical analysis above, computer simulation is needed for some promising and representative material through the simulation software SolidWorks.
Journal of Yancheng Textile Vocational Technology College,2007
Journal of Xi'an University of Science and Technology, 2006,21(03): p.412-415
Journal of Guilin Normal College,2007,21(04): p. 168-170.

The combination of acrylic polymers and nano-particles into nanocomposites has attracted considerable attention in recent years, because these materials offer the prospect of new synergetic properties.
Recently, this kind of green material has been advocated for diversified applications, such as a potential nanofiller for the preparation of industrial composites[5，6].
Experimental Material.
References [1] N.Keseel, D.R.Isley and J.L.Keddie: Journal of coatings technology and research Vol.5(2008), p.285 [2] Y.Yoo, G.H.Hong and S.R.Hur: Journal of applied Polymer Science Vol.112(2009), p.1587 [3] N.Y.Wang, Y.K.Guo and H.P.Xu: Journal of applied Polymer Science Vol.113(2009), p.3113 [4] J.
Deng: Materials letter Vol.62(2008), p.2931 [5] L.Brinchi, F.Cotana and E.Fortunati: Carbohydrate Polymer Vol.94(2013), p.154 [6] E.

Testing Material and Method Testing Material.
The testing material used in experiment is P20 steel, with chemical composition given in Table 1.
Table 1 Chemical composition of test material (wt.%) C Si Mn Cr Mo V P S 0.40 0.28 1.45 1.89 0.18 0.01 0.014 0.003 Testing Condition and Method.
Acknowledgment This work is supported by the National Nature Science Foundation of China (No. 51074052).
References [1] Guodong Wang: Chinese Medium Plate Rolling Technology and Equipment (Metallurgy Industry Press, Beijing 2009) (In Chinese) [2] Jihua Zhou, Kezhi Guan, Jie Liu: Journal of University of Science and Technology Beijing Vol. 13(1991), P. 20~26 (In Chinese) [3] Jihua Zhou, Kezhi Guan: Metal Plastic Deformation Resistance (Mechanical Industry Press, Beijing 1988) (In Chinese) [4] Ying Li, Jianxiong Liu, Xiaotao Ke: Research on Iron & Steel Vol. 37(2009), P. 59~66 (In Chinese) [5] F.Siciliano, L.L.Leduc, K.Hensger: Iron & Steel Vol. 40(2005), P. 469~473 [6] Liao S L, Zhang L W, Yue C X: Journal of Central South University technologh Vol. 15(2008), P. 575~580 [7] Wang J, Chen J, Zhao Z: Journal of Central South University technologh Vol. 14(2007), P. 19~23 [8] Zhao J, Ai X, Wang S: Key Engineering Materials Vol. 315(2007), P. 350~354 [9] Zhanxue Wang: Plastic Processing Metallurgy (Metallurgy Industry Press, Beijing 1991) (In Chinese)

Introduction Magnesium (Mg) alloys are one of the lightest structural materials with excellent physical and mechanical properties [1].
Experimental Procedure ZE41A (4% Zn and 1% RE) as cast ingots in T5 condition were used as the substrate material.
References [1] Abbas, G. and Liu, Z., Skeldon, P. (2005) Corrosion behaviour of laser melted magnesium alloys, Applied Surface Science 247, 347-353 [2] Jun, J.H., Park, B.K., Kim, J.M., Kim, K.T. and Jung, W.J. (2006) Microstructures and mechanical properties of Mg-Zn-RE-Ca casting alloys, Material Science Forum 510-511, 214217 [3] Cao, X., Xiao, M., Jahazi, M. and Immarigeon, J.P. (2005) Continuous wave Nd:YAG laser welding of sand-cast ZE41A-T5 magnesium alloys, Materials and Manufacturing Processes 20, 987-1004 [4] Song, G.L. and Atrens, A. (1999) Corrosion mechanism for Mg alloys, Advanced Engineering Materials 1(1), 11-33 [5] Ignat, S., Sallamand, P., Grevey, D. and Lambertin, M. (2004) Magnesium alloys (WE43 and ZE41) characterization for laser applications, Applied Surface Science 233, 382-391 [6] [6] Majumdar, J.Dutta., Galun, R., Mordike, B.L. and Manna, I. (2003) Effect of laser surface melting on corrosion and wear resistance of a commercial magnesium
alloy, Materials Science & Engineering A 361, 119-129
(eds) The Metals Society of AIME, Warrendale, PA, 1-10 [8] Koutsomichalis, A., Saettas, L. and Badekas, H. (1994) Laser treatment of magnesium, Journal of Material Science 29, 6543-6547 [9] Kalimullin, R.K., Valuev, V.V. and Berdnikov, A.T. (1986) The effect of surface laser treatment on the creep of magnesium-lithium alloy MA21, Metal Science Heat Treatment 28, 668-670 [10] Dubé, D., Fiset, M., Couture, A. and Nakatsugawa, I. (2001) Characterization and performance of laser melted AZ91D and AM60B, Material Science and Engineering A 299, 38-45 [11] Zhao, M.C., Liu, M., Song, G.L., and Atrens, A. (2008) Influence of microstructure on corrosion of As-cast ZE41, Advanced Engineering Materials 10(1-2), 104-111 [12] Jun, J.H., Kim, J.M., Park, B.K., Kim, K.T. and Jung, W.J. (2005) Effects of rare earth elements on microstructure and high temperature mechanical properties of ZC63 alloy, Journal of Materials Science 40, 2659-2661 [13] Liu, S.Y., Hu, J.D., Yang,

Experimental Materials and Methods Experimental Materials Materials synthesizing wear-resistance alloy.
Auxiliary materials are colloid mixed by ethanol and PVB as the binder.
The quantity adding raw materials is given in Table 2.
Journal of Hefei University of Technology(Natural Science), 05(2003) 1063-1067
Dependence of oxidation rate of WC powder on particle size, Journal of Materials Science, 7 (1986) 2033-2042