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Analysis of inclusion microstructure in material engineering of steel Dingguo Zhaoa, Shuhuan Wangb,*, Mingjian Guoc College of Metallurgy and Energy, Hebei United University, Tangshan 063009, Hebei, China agyyzhao@163.com, bwshh88@heuu.edu.cn, cguomj299@163.com Keywords: inclusion; microstructure; technic control,material engineering Abstract: The sample of oxide inclusion was obtained in the different stage of steelmaking for the 65 steel.
The measures including raw material requirement, improving of the converter, LF refining and continuous casting operations were put forward to decrease inclusion.
There are much higher request to the quality of the wire with the development of the iron and steel materials.
The exogenous inclusions come from the corrosion flake of furnace (ladle, tundish and so on) lining, and other material such as covering slag, covering agent and mixed slag.
The key of the composition control is low-phosphorus, low-sulfur, low-nitrogen, low-hydrogen, low-oxygen, stable carbon content and micro-alloying elements.

The performance of inorganic materials is critical in structural design and engineering applications.
Testing techniques and evaluation methods are are therefore keys to ensuring the quality and reliability of inorganic materials and components.
The main theme of this special collection is materials properties and testing techniques, and covers most aspects of testing techniques as applied to the mechanical, chemical, physical properties and microstructures of ceramics, glass and concrete.
The work therefore offers an insight into cutting-edge developments in testing techniques in the area of inorganic materials.

Bionic Flapping Wing Flying Robot Flight Mechanism and the Key Technologies XuYang1, a , Xiaoyi Jin2, b, Xiaolei Zhou3, c College of Mechanical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China aemail: xuyang588@21cn.com, bemail: teacherjxy @126.com Keywords: MAV , flexible wing, flight mechanism, the key technologies, flapping flight Abstract.
On this basis, the current course of the study were discussed key technical issues, combined with the current research, flapping wing aircraft for the future development prospects.
Introduction MAV (Micro Air Vehicle) is a set of aerodynamics, electronics, computer power, materials, mechanics and automatic control and other high-tech in one of the new aircraft.
This paper presents the key technical problems in research breakthroughs will make bionic flapping-wing flying robot technology is more mature.
Acknowledgement In this paper, the research was supported by The high level project to cultivate special of Shanghai University of Engineering Science (2012gp05); The graduate innovation project of Shanghai University of Engineering Science (13-01011) References [1] W.

Acknowledgements This paper is supported by the 2012 Ladder Plan Project of Beijing Key Laboratory of Knowledge Engineering for Materials Science (No.
Chu, et al: Materials Science and Engineering C, Vol. 29 (2009) No.6, p. 1950–1958
Chen: Polymer Materials Science and Engineering, Vol. 28 (2012) No.2, p.174-178
Chu, et al: Materials Science and Engineering: C, Vol. 29 (2009) No.6, p.1950–1958
Zhang: Polymer Materials Science and Engineering, Vol. 27 (2011) No12, p.167-171

Permeability and Porosity of Tight Rock Materials under Conditions of High Temperature and High Pressure Yinger Deng State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, Sichuan 610059, China dengye6789@sina.com, 546730457@qq.com Keywords: High Temperature and High Pressure, Tight Rock Materials, Permeability, Porosity, Mechanism Abstract.
The results can provide engineering geological disposal of high level radioactive waste with basis.
Fig. 1 Schematic diagram of flow chart of experimental facility Experimental Materials and Method The main experimental materials were tight rock and distilled water.
Results show that there are some micro-cracks in the tight rock materials although the experimental model samples of tight rock materials have no macroscopic cracks.
[5] Suping Peng, Zhaoping Meng and Hu Wang: Chinese Journal of Rock Mechanics and Engineering Vol.22 (2003),p.742 (In Chinese)

Influence of Jacket and Filling Materials Characteristics on PELE Effects Hongcheng Zhang 1, a, Jianping Yin 1, b, Zhijun Wang1, c (1College of Mechatronic Engineering, North University of China, Tai Yuan, China) alangxue2010@126.com, b yjp123@nuc.edu.cn, cwzj@nuc.edu.cn.
Keywords: PELE, Lateral efficiency, Jacket materials, Filling materials Abstract.
For filling materials, the elastic modulus is the key factor influencing PELE effects, the maximum radial speed and scattering angle of fragments, and the penetration hole size of PE, nylon and aluminum increase successively, the aluminum filling material has better PELE effects.
Mechanics in Engineering.
International Journal of Impact Engineering.

The paper carries out a classification of the mega-accidents in electrical engineering, and conducts a three-dimensional analysis of the accident risk in electrical engineering.
Wu (2008) [7] analyzed several typical OPGW failures that had happened during installation and operation. 2 Sources and Relations of Risk in Electrical Engineering The risk of electrical engineering accidents can be summarized into three risk layers of the sources: Risk sources from organizational layer, material layer and individual layer.
Risk Sources of Electrical Engineering Accidents Relation Diagram 3 The Classification of Electrical Engineering Accidents Based on case study and the logic of Figure 1, here break down the risk sources of electrical engineering to layers.
While the risk sources of the resource are mainly raw materials, natural attributes, such as flammable and explosive hydrogen gas, dissolution of local water and etc.
Risk Sources Layers of Electrical Engineering Accidents.

The Elementary Exploration on Teaching Reform of Training Center of Engineering Yuping Ma a, Genfu Yuanb, Yansheng Yaoc School of Mechanical and Electrical Engineering,Anhui Institute of Architecture and Industry, Hefei, Auhui, China awxlmyp@yahoo.com.cn, bforgf@263.net, cy.ys@163.com Keywords: Training Center of Engineering; Local Engineering Colleges and Universities; Teaching Reform; Cultivation Quality Abstract.
The present defects of the teaching practice in training centers of engineering in the local engineering colleges and universities are introduced.
How to play the full role of the training center of engineering for cultivating the capacity-building of engineering students is a hot topic.
All practical classes can be carried out using electric teaching materials.
THE ENGINEERING TRAINING CENTER ATTACHED GREAT IMPORTANCE TO THIS.

Effect of Crack Statically Growing on Stress and Strain at Crack Tip for Power Hardening Materials He Xue 1, a, Min Qiao 1,b , ZhenWen Wang 1,c , XiaoYan Gong 1,d 1 School of Mechanical Engineering, Xi’an University of Science and Technology, 710054, China axue_he@hotmail.com, bqiaom_1989@163.com, c2007.wzw@163.com , dgongxymail@163.com Keywords: crack statically growing; residual plastic strain; power hardening materials; elastic-plastic finite element Abstract.
Quantitative predicting EAC growth rate in key nuclear structural materials is one of the key issues of the long-term safe operation of nuclear power plants [2].
The researches show that EAC growth rate was dominated by the stress and strain at the crack tip in key structural materials of nuclear power plants [3].
Numerous austenitic stainless steels and nickel-based alloys are power hardening materials, which is widely used in key structural materials of nuclear power plants.
Acknowledgement This work was financially supported by the National Natural Science Foundation of China(11072191) References [1] HAN E H, WANG J Q, WU X Q: Acta Metallurgica Sinica Vol.46 (2010),p.1379 [2] CHOPRA O K, CHUNGA H M, KASSNER T F: Nuclear Engineering and Design Vol. 194 (1999),p.205 [3] GUAN Y X, Dong C F, LI Y: Science and Technology Review Vol. 29(2011),p.17 [4] PENG Q J, KWON J, SHOJI T: Journal of Nuclear Materials Vol. 324 (2004),p.52 [5] HALL JR M M: Corrosion Science Vol. 50(2008),p.2902 [6] SHOJI T, LU Z P, MURAKAMI H :Corrosion Science Vol. 52(2010),p.769 [7] XUE H, SHOJI T: Transactions of the ASME-Journal of Pressure Vessel and Technology Vol. 129(2007),p.254 [8] XUE H, ZHAO D, PENG Q J: Journal of materials Vol. 5(2011),p.18 [9] XUE H, LI Z J, LU Z P: Nuclear Engineering and Design Vol. 241(2011),p.73 [10] XUE H, OGAWA K, SHOJI T: Nuclear Engineering and Design Vol. 236(2009),p.628

Reinforcing of Porous Hydroxyapatite Ceramics with Hydroxyapatite Fibres for Enhanced Bone Tissue Engineering Liang Lie-feng1,a*, Han Xiao-yi1,b, Yan Xiao Cai1,c, Jie Weng2,d 1 College of Textile and Garment, Southwest University, Chongqing 400716, PR China. 2 Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China.
Introduction Porous materials are important in many scientific and engineering applications.
Materials Letters, 63 (28):2466–9, 2009
Materials Letters, 62 (4-5): 607–610, 2008
Materials Letters, 63 (9-10): 729–31, 2009