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An outstanding specific strength of the titanium alloys is not the only objective material property determining their utilizations as a construction material in aircraft manufacturing.
Materials and Methods The observation of topography was carried out and the 3D parameters were measured, as an intermediate step within the framework of the project, to determine the differences between surface textures for deposed coatings before erosion tests will be carried out.
Repeated measurements will be conducted after experimental series conducted in laboratories with analyzed materials and research objects.
References [1] Mulleners, K., Gilge, P., Hohenstein, S., Impact of Surface Roughness on the Turbulent Wake Flow of a Turbine Blade, Journal of Aerodynamics, Vol. 2014, Article ID 458757, (2014) 1-9
J. of Refractory Metals and Hard Materials, Vol. 35, (2012) 10-16.

Preparation of Bauxite-Based Homogenized Mullite Grogs with Bauxite and Coal Gangue Zhong Zheng Yang, Zhen Xian Xing, Zhan Fang Gai and Huan Qiang Liu The Key Laboratory of Materials, North China University of Water Conservancy and Electric Power, Zhengzhou 450011, P.
But mullite is very rare in nature, the most of mullilte is synthesized using many different sources of alumina and silica as starting materials , such as Al2O3 and SiO2, kaolinite and Al2O3, kyanite and alumina[4,5], etc..
When receiving the manuscript, we assume that the corresponding authors grant us the copyright to use the manuscript for the book or journal in question.
Preparation of samples (1)The samples without sintering additives The chemical composition of mullite designed in accordance with 69wt.% Al2O3 to 72wt.% Al2O3 and the ratio of Al2O3/ SiO2 (wt.%).Six- group samples could be prepared with bauxite and coal as raw materials.
[9] Wei C T, Zhao F, Ma H W, et al: J Jilin Univ(Earth Science Edition), Vol. 3(2005), P150-P154

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 131, 12(2000), pp. 3041-3052
Materials Science and Engineering: A Vol. 475 (2008), pp. 336-342
Materials Science and Engineering: A Vol. 407 (2005), pp. 234-244
Materials Science and Engineering: A, Vol. 438–440 (2006), pp. 281-284
JOURNAL OF MATERIALS SCIENCE Vol. 40 (2005), pp. 3629- 3633

Disassembly is part of the remanufacturing and it is meant to obtain components and materials from end-of-life products.
An essential performance objective of a disassembly process is the benefits it brings, that is the revenue brought by the retrieved parts and material, diminished by the cost of their retrieval operations.
Its main task is to disassembly the TV set into different groups for different objects: 1) Reuse as metal material; 2) Reuse as plastic material; 3) Collect some components or material dangerous to environments.
Acknowledgements This research is partially sponsored by National Natural Science Foundation of China (Grant 51205221), Natural Science Foundation of Beijing (Grant 3122022) and the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry.
Gupta: European Journal of Operational Research, Vol.179(3), (2007), p.692-708

Experimental Materials.
The materials mixture was presented in Table 2.
ACI Materials Journal. 84 (1987) 64-73
Materials and Structures. 33 (2000) 229-234
Key Engineering Materials. 302 (2006) 275-281.

Compare with non-prestressed steel structure, materials can be saved and steel consumption can be decreased by using pre-stress [1].
Consumption on materials is different with using different types of pre-stress steel structure.
Acknowledgements This work was financially supported by science researching fund of North China Institute of Aerospace Engineering.
The science researching fund number is KY-2010-09.
[2] Qinghua Han, Bo Pei: submitted to Journal of Building Structures (In Chinese, 2004)

Effect of Laser Modification Welding on Formation of Aluminum Alloy Xu Fei 1, a, Yang Jing 2, b 1Science and Technology on Power Beam Processes Laboratory, Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China 2College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China axufei_0623@163.com, byangjing_611@hotmail.com Keywords: aluminum alloy; LBW; LMW; formation of weld; microstructure.
Engar: Welding Journal, Vol. 43 (1990) No. 4, p.105
Zuo: Laser Materials Processing of High Strength Aluminum Alloys (National defense Industry Press, China 2002), p.102
Chen: A study on the full penetration stability and physical metallurgy of the laser welding of aeronautic titanium alloys (PH.D., Huazhong University of Science & Technology, China 2005), p.99

The effect of isothermal treatment on the microstructure and properties of high performance steels WangXuemin a, Zhao Yanqing b 1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083 China awxm@mater.ustb.edu.cn, bhexl@mater.ustb.edu.cn Keywords: multi-phase, high performance steels, low yield to tensile ratio, isothermal treatment.
Materials and methods Low carbon steel was designed and prepared in 25kg vacuum induction furnace.
Dunne: ISIJ Int, Vol. 36 (1996), p. 61 [6] Thompson S W, Krauss G, Tseng C C: Journal of Mater Sci Lett, Vol. 17(1998), p. 2075 [7] J Liu, M Wen, G Wu G et al:.

Effect of spheroidizing annealing time on microstructure and hardness of GCr15 bearing steel Xiangdong Huo1,a, Lin Guo1,b, Kuangnian He 2,c and Rui Huang2,d 1 School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China 2 Shaoguan Iron and Steel Group Co.
Experimental procedure The experimental material is GCr15 round bearing steel with a chemical composition of 1.0C-0.25Si-0.40Mn-1.55Cr-0.015P-0.005S (in wt.%).
Maity: Journal of Materials Engineering and Performance, Vol.20 (2011), p.114 [3] L.M.
Iron & Steel Res., Int., Vol.10 (2003), p. 36 [4] K.Z.Shepelyakovskii, A.G.Spektor and A.N.Kuznetsov: Metal Science and Heat Treatment, Vol.18 (1976), p.78

Acknowledgement The authors of this paper would like to thank the Korea Science and Engineering Foundation (KOSEF) for sponsoring this research through the SRC/ERC Program of MOST/KOSEF (R11-2005-065), and the 21c Frontier R & D Program of MOICE as well.
Trochu, A Standard Characterisation of Saturated and Unsaturated Flow Behaviours in Porous Media, Proceedings of 12 th International Conference on Composite Materials, 1999 [4] J.
Papathanasiou, A Structure-Oriented Micromechanical Model for Viscous Flow Through Square Arrays of Fiber Clusters, Composite Science and Technology, Vol. 56, pp. 1055~1069, 1996 [6] Y. de Parseval, K.
Klamo, Simulations and Experiments on Low-Pressure Permeation of Fabrics : Part II-The Variable Gap Model and Prediction of Permeability, Journal of Composite Materials, Vol. 35, pp.1285~1322, 2001 (a) Fiber Direction (b) Cross Direction Figure 6 Experimental Results : Pressure Profiles and Pressure Gradients 0 5000 1 104 1.5 104 2 104 2.5 104 3 104 -9.5 104 -9 104 -8.5 104 -8 104 -7.5 104 -7 104 -6.5 104 -6 104 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 Pressure dP/dx Pressure dP/dx x Saturated Region Unsaturated Region 0 5000 1 104 1.5 104 2 104 2.5 104 3 104 -9.5 104 -9 104 -8.5 104 -8 104 -7.5 104 -7 104 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 Pressure dP/dx Pressure dP/dx x Saturated Region Unsaturated Region