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The solution treated materials were aging heat treated (STA) by heating to a temperature within the range 500℃ to 620 ℃, holding at heat for the time within the range 4 hours to 20 hours, and cool to room temperature.
As shown in Fig. 3, similar microstructures can be obtained by the same STA treatment processes, though the materials are rolled by different routes.
Change of material selection criterion and development of high damage-tolement titanium alloy.
Chiniese Journal of Rare Metals, 30, (2006) 850-855
Material Science and Engineering A, 243, (1998) 109-118

The world bank reported Chinese economy will triple to quadruple its materials consumption over the next 30 to 50 years[1].It means that china will meet a great challenge in disposal those wastes .
Materials and methods Sample collection and digestion Total suspended particulates(TSP) (N=6×3) were collected in 2011 from the surrounding of the Nanshan MSWI in Shenzhen(Fig.1), a mega-city located in southeast China.
[5] Chang M B, Huang C K, Wu H T, et al.Characteristics of heavy metals on particles with different sizes from municipal solid waste incineration[J].Journal of Hazardous Materials.2000. 79(3):229-239
[7] Luo X-S, Ding J, Xu B, et al.Incorporating bioaccessibility into human health risk assessments of heavy metals in urban park soils[J].Science of The Total Environment.2012. 424(0):88-96

Introduction Most of heterogeneous and anisotropic materials are elastic-brittle solids (such as rock, ceramic and concrete).
But, Wong et al. [3-6] conducted later the experiments on open type of 3-D surface flaw using PMMA, glass and real rock materials including gabbro, sandstone, granite and marble.
Wong (A-PE31, and A-PG46) and the National Natural Science Foundation of China to W.S.
Journal of Geophysical Research, 90(B4) (1985), p.3105-3125 [2] C.K.
Li, 6th European Conference of Fracture Failure Analysis of Nano and Engineering Materials and Structrures, Greece, July, (2006), Paper N.264 [6] R.H.C.

Materials and Methods The slurry of n-HA prepared by wet method [11] was ultrasonicated to be diffused uniformly in deionized water.
Biocompatibility of the materials was evaluated by implanting in muscle tissue of female rat.
Li: Journal of Materials Science Vol. 39 (2004), p. 5669 [4] G.

Fig. 1 Grinding machine structure scheme Fig. 2 Grinding machine 3D model 3.Principle of grinding machine structural static analysis and finite element modeling 3.1Principle of grinding machine structural static and dynamic analysis The main components and the whole machine would generate certain deformation and stress inside the material by the various loads.
Through static analysis, each point’s data of the stress, strain, displacement and deformational energy could be calculated within machine, its basic point formula of static analysis is as follows[3]: (1) In Eq.s1, where is the element nodal force, is called the element stiffness matrix, is the stress vector at any point within the unit, is the elastic matrix related to unit material, t is the element thickness, A is the unit area
Solutions can be obtained through finite element calculation after defining material properties, meshing, exerting loads and boundary conditions[5], as shown in figure 3.
Huang, “The Development of Large High Efficient CNC Gantry Grinder for Vessel in Nuclear Power,” Key Engineering Materials vol. 416,pp. 421-425.July 2009
Gao, “Dynamic Finite Element Analysis of Heavy-duty Machine Tool,” Journal of Fuzhou University(Natural Science),Vol. 31 No. 1,pp. 69-72 Jan. 2003

Observation and Analysis of the Microstructures of IGF Refined Low Carbon Microalloyed Non-tempered Steel Shuhua Wang1, a, Haiou Jing2, b, Le Jin1, c and Yan Xue1, a 1School of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, China 2School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, China awangshuhua868@sina.com, bJinghaiou@sdjzu.edu.cn, cJinle@sdjzu.edu.cn Keywords: Intragranular Ferrite (IGF), Low carbon microalloyed non-tempered steel Abstract.
Shorter intervals and discontinuous cementite flakes help increase both strength and toughness of the material.
The cutting processing performance of the hot-forged non-tempered steel is a major element influencing the material’s application.
Liu: Journal of Mechanical Engineering Vol.16 (in Chinese) (2010), pp135-139 [2] Z.B.
Huang, etc: Materials Review Vol.18 (8) (in Chinese) (2004), pp50-52 [4] Y.Koyasu, H.Takada, T.Tnkshashi, etc: Setesu Kenk'yu, Vol. 337(1990), pp41-48 [5] S.L.

Introduction A recent trend for the development of new high-efficiency polycrystalline diamond materials points towards the optimization of the sintering technology of diamond bits with double layers, also known as polycrystalline diamond cutters (PDC).
The present study aims to examine the possibility of sintering PDCs using a new method related to the simultaneous sintering of the two layers, having powders as starting materials.
:Science Vol. 208 (1980), p. 872. 2 D.G.
Mendonça: International Journal of Refractory Metals and Hard Materials Vol. 21 (3-4) (2003), p. 155. 7 A.L.

Because this procedure uses the deformation characteristics in strong-textured materials, this procedure cannot be employed to cast Mg alloys.
Therefore, in the present study the material parameters for the cast Mg alloy sheet were determined as follows.
Table 1 Identified material parameters.
Andar, T.Kuwabara, D.Steglich, Material modeling of AZ31 Mg sheet considering variation of r-values and asymmetry of the yield locus, Mater.
Ohori, Grain refinement of AZ31 magnesium alloy sheets fabricated by rolled and heat treated twin roll cast plate, Journal of Japan Institute of Light Metals, 58 (2008), pp.22-26.

Topology optimization is to seek the best loading path in the unlimited topology combinations by changing the amount and location of materials to save the most materials [2].
Select cross section and define material.
Perform Analysis after Creating STAAD File The main function of this step is to pass all required information of truss like geometry of truss, material properties, Support condition, and loading conditions for STAAD software to implement analysis.
Nazarpour, Optimal design of truss structures via an augmented genetic algorithm, Turkish Journal of Engineering and Environmental Sciences. 37 (1) (2013) 56-68

Introduction Titanium alloy is a difficult-to-cut material according to some reasons such as the high grinding temperature and cutting force during grinding process of the titanium alloy.
Because the coefficient of heat conductivity of the difficult-to-cut materials such as titanium alloy is minor, some flaws may be appeared on the workpiece surface [6].
Acknowledgments This project is supported by the Zhejiang science foundation (M503049), Zhejiang technical foundation (2004C21007), Zhejiang Education foundation (20030157) References [1] T.H.
Ren: Grinding on Difficult-to-machine Material (National Defence Industry Publications, China 1999)
Wang: Journal of Shandong University, Vol.33 (2003) No.5, pp.482.