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(a)Base material (b) Interface of thermal affected zone and base material (c) Welded nugget Fig.3 Microstructure of FSW joints after corrosion In Fig.3, the area of corrosion in the interface of TMAZ and base material is bigger than base material and nugget.
The interface of TMAZ and base material susceptible to corrosion.
Corrosion Science 52(2010)620-626
Applide Surface Science 257(2011)3985-3997
Journal of International Metal Working 25 (2004) 45-49.

The effect of chemical reaction in flow analysis plays a vital role in engineering applications like oxidation of solid materials, polymer production, synthesis of ceramic materials, manufacturing of glassware, and tabular reactors and food processing etc.
Thermal Sciences 43 (2004) 157-168
Sciences 33 (2009) 193-205
Appl. sciences 1 (2013) 1-24
Bhuvanavijaya, Radiation effect on Mixed Convection over a Vertical Wavy Surface in Darcy Porous Medium with Variable Properties, Journal of Applied Science and Engineering (2015), 18(3), 265-274

Box435, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China a yyyanghit@hit.edu.cn, bjing_li@hit.edu.cn Keywords: superplastic forming, rigid-viscoplastic problem, meshless, element free Galerkin method.
Introduction Superplastic materials exhibit excellent processing attributes, which has made them widely used in aerospace fields.
In this work, EFG method [4], one of the most promising meshfree methods, is used to analyze deforming behavior of superplastic materials.
Yang: Journal of Harbin Institute of Technology Vol. 31 (1999), p. 128
Dumon: Journal of Materials Processing Technology Vol. 112 (2001), p. 83.

Raw materials and experimental methods Raw materials.
Raw materials including ordinary Limestone, high-magnesium limestone, clay, sulfate slag, barium slag, bauxite, fluorite and gypsum, were industrial raw materials.
The chemical compositions of the raw materials are given in Table 1.
The raw materials were homogenized and ground to pass a 75-µm sieve.
And 0.6% CaF2 was added to cement raw materials.

WS2 nanotubes prepared by aluminum oxide template Dongbo Yu1, a, Yi Feng1, b, Yanfang Zhu1, c, Xuebin Zhang1, d, Bin Li1, e, Huiqiang Liu1, f 1 School of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui, 230009, People’s Republic of China a htl19880101@163.com, b fy123@mail.hf.ah.cn Keywords: WS2 nanotubes, synthesis, structure Abstract: Tungsten disulfide nanotubes were fabricated by means of decomposition of ammonium tetrathiotungstate ((NH4)2WS4) on anodized aluminum oxide (AAO) template.
Acknowledgments This work was financially supported by the National Natural Science Foundation of China（No.60979017 and 91026018），and the Natural Science Foundation of Anhui Province of China (Grant No. 11040606M50).
[3] Cheng Fangyi and Chen Jun: Journal of Materials Research Vol. 21 (2006), p. 2744-2757
[9] Prasad T P, Diemann E and Muller A.: Journal of Inorganic and Nuclear Chemistry Vol. 35 (1973), p. 1895-1904
[10] Zhu Yanfang, Feng Yi, Yu Dongbo, Li Bin, Liu Huiqiang and Zhang Xuebin, in: Rare Metal Materials and Engineering (2011), in press.

In order to solve this problem, new materials should be introduced into material-field model. 4) Change the rapper face of the body to make it not touch the whole conical surface but in the form of many dots. 2.2 Case analysis 2: the design of open-end spanner When open-end spanner makes hexangular screw or nut tight or loose, it is easy to distort because the strength of screw or nut is concentrated on two edges, leading to the difficulty of being tight or loose.
First, get to choose and confirm the technology characteristics of 39 standard technology features: the feature of improving quality: the harmful factors leading to materials; the feature of negative influence: manufacturability; Search by the software Invention Tool 2.0 and find 4 available invention principles.
Creativity as an Exact Science, The theory of the Solution of Inventive Problems [M].New York, Gordon and Breach Science Publishers, 1988
[4] Janice Marconi.ARIZ: The Algorithm for Inventive Problem Solving [J].TRIZ Journal April 1998
Thoughts on ARIZ-Do we need redesign the ARIZ 2000[J].TRIZ journal April 2003.

HT can be applied in many fields, such as catalysis [2], adsorption [3], anion exchange [4], and precursors to magnetic materials [5].
These products were calcined at 450 oC for 3 h to get calcined MHT (CMHT-H and CMHT-NH) Characterization of materials.
Koh: Progress in Crystal Growth and Characterization of Materials, Vol. 55 (2009), p. 22-45 [7] Y.C.
Qian: Journal of Hazard.
Journal, vol. 165 (2010), p. 827–834 [11] Z.P.

Materials and methods 2.1.
Materials The solutions used in electrospinning experiments are prepared using 2000,000 molecular weight polymers (ethylene oxide) (PEO, Aladdin shanghai, China).
GDMNML2013-1), and Guangdong Provincial Key Laboratory Construction Project of China (No. 2011A060901026), Key Joint Project of National Natural Science Foundation of China (Grant No.U1134004) China Post Doctoral Science Foundation (125032).
Journal of Physics D: Applied Physics, 43(41), 415501
Carletto, Giorgio Mazzuchett:Experimental investigations on the multi-jet electrospinning process,Journal of Materials Processing Technology 209 (2009) 5178–5185

The pile is considered as no-porous elastic material with a length of 15m and a diameter of 0.4m.
Both the 5m high embankment fill and the 15m thick soft soils were considered as Mohr-Coulomb materials and all of the material parameters are listed in Table 1.
Fig.1 Numerical model (unit: m) Fig. 2 The soil pressures and stress concentration ratios Table 1 The physical and mechanical parameters of the materials Materials [kN/m3] [kN/m3] [m/d] [Mpa] [kPa] [°] [°] Soft soils 14 16.7 0.00124 0.5 0.35 1.5 18 0 Embankment 22 24 1.0 9 0.25 3.0 35 5 Pile 24 24 - 30000 0.17 - - - Results and Analyses Fig. 2 shows the variations of the soil pressures with time.
RUI: Chinese Journal of Geotechnical Engineering, Vol.28 (2006), p.327-331, in Chinese
Leung, et al.: Canadian Geotechnical Journal, Vol.46(2009), p. 10-24

Study on 45 Steel“Zero Time Holding”Quenching Technology Anming LIa Mengjuan Hu 1School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China aanmingli2001@sina.com Keywords: 45 Steel; Zero Time Holding Quenched; Tensile Strength; Hardness Abstract: The effect of “zero time holding” quenching temperature on the 45 steel’s microstructure and mechanical properties were studied by the orthogonal regressive principle.
According to the Hall-Patch equation, σ = σ0 + Kd-1/2, σ is the strength of materials (MPa); σ0 is the strength of crystal grain inside(MPa); K is constant, d is the diameter of the grain, fine grain contributes to strength and hardness of the steel.
MENG: Journal of Fuxin Mining Institute, 1994, Vol. 13: 64-68(In chinese)
CHEN: Journal of Anqing Teachers College (Natural Science), 2000,(5):84-85(In chinese)
[6] A.M, LI, H.W, ZHANG and H.B.YANG:Journal of Henan Polytechnic University(Natural Science),2006, 1: 1-5(In chinese)