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A series of mechanical, physical and chemical properties of materials such as corrosion resistance, abrasion resistance, heat resistance, can be significantly improved after treated by electron beam [12].
Experimental materials and methods 2.1 Experimental materials 6061 aluminum alloy was used as the experimental substrate material and its chemical composition (in wt.%) is: Si, 0.4–0.8; Fe, 0.7; Cu, 0.2–0.4; Mn, 0.15; Mg, 0.8–1.2; Cr, 0.04–0.35; Zn, 0.25; Ti,0.15; and Al, balance..
Journal of Materials Science,1994, 29：728-735
Materials Science & Technology, 2003, 11 (2):220-224
Journal of Northeastern University(Natural Science), 2011,32 (7):952-955

These materials have also been reported to undergo certain changes in their physical properties when exposed to gamma radiation [6].
Compton scattering occurs at intermediate energies and with materials of low atomic number while and pair production takes place at high energies.
Thus hydrogenous materials have a higher probability of Compton scattering than a non hydrogenous material of equal mass [9].
Nigerian Journal of Applied Science (njas) Vol.24 (2006) pp128-132
Dielectric and Electronic properties of Biological Materials.

Materials Properties In the process of cutter cutd rock, cutter ring contact rock, so cutter ring model is used to simulate the analysis of cutter cuts rock.
Its material parameters are shown in Table 1.
Simulation Results and Analysis Rock a sample belongs to brittle materials, cutting breaking-rock is a non-linear contact analysis process.
[5] Xiangheng Zhu, Yimin Xia, Tao Ouyang and Kai Yang, “Distribution Law of Excavating Load of TBM Disc Cutter and Cutterhead”, Applied Mechanics and Materials, No.4, pp.71-74, 2007
[8] Okan Su and Nuri Ali Akcin, “Numerical Simulation of Rock Cutting Using the Discrete Element Method”, International Journal of Rock Mechanics and Mining Science, No.48, pp. 434-442, 2011

Raw materials and equipment The raw materials of dynamic experiments in lab are mainly industrial pure iron, 75 ferrosilicon and boron oxide, and the asistant material are the lime, magnesia and fluorite, etc.
The chemical components of all kinds of materials were shown in Table 1 and Table 2.
The raw materials and reaction things were measured with X-ray diffraction device.
For boron oxide reducing areaction, the existing materials containing silicon mainly are Si, SiB6 and CaSiO3 in slag [8~9], and other materials containing silicon are very few.
Journal of University of Science and Technology Beijing, 2010, 32(1): 27

It is indicated that fractal dimension in fractal theory can be used to characterize the complexity of geometry and distribution of materials at different scales because both of them are statistically self-similar on a certain measurement scale[2,3].
The equipment for SEM is field-emission gun scanning electron microscope (JSM-6301F, TDK's SAE materials laboratory).
Chinese Journal of Geotechnical Engineering, 2007; 29(9):1386-1391
International Journal of Solids and Structures, 2000, 37:4627-4630
Mechanics of Materials, 2007; (39):326-339.

Materials Today: Proceedings, 2018. 5(3, Part 2): p. 9525-9534
Materials Science Forum, 2018. 916: p. 153-160
Computational materials science, 2010. 49: p. 126-133
Materials & Design, 2010. 31(4): p. 2097-2101
Brazilian Journal of Oral Sciences, 2010. 4(9): p. 439-443

Journal of Agro-Environment Science, Vol 22(2003), p. 28-30
Journal of Hazardous Materials, Vol 158(2008), p. 359-365
Journal of Environmental Quality, Vol 27(1998), p. 715-721
Materials Review, Vol 19(2005), p. 23-26.
Journal of Mineralogy and Petrology, Vol 24(2004), p 108-112.

Analysis of bearing capacity of steel-high strength concrete composite beams Liangli Xiao, Mingyang Pan, Jian wei Han 1Wuhan University of Science and Technology,wuhan 430070,china. 2School of civil Engineering and Architecture,Wuhan University of science and Technology,wuhan 430070,china. 3School of civil Engineering and Architecture,Wuhan University of science and Technology,wuhan 430070,china.
The two materials together according to the form of composite beam can avoid the disadvantages of them and give full play to the advantages of two kinds of materials, forming the structure of high strength, high stiffness, good ductility.
Flange and web of equal thickness, the flange thickness of 0.01m, web thickness is 0.02m.In this paper three kinds of steel with the same section area, their proportion were 28.3.Materials using linear element.
The other is according to the material selection and specification level experience, strength and other indicators.
[2]Ruizs．E．Reliability Associated with Safety Factors of ACll31-89 and Mexico City concrete Design Regulations, ACI structural Journal, 990, NO．3, 1993 [3]Amadio C, Fragiacomo M．Simplified approach to evaluate creep and shrinkage effects in steel-concrete composite beams．Journal of Structual Engineering, 1997．123(9)：1153-1162

Both of TiC and La2O3 dispersed to W can strengthen the mechanical properties of W alloys and improve its using lifetime Acknowledgements The work was supported by National Natural Science Foundation of China (No.11205130), and the Natural science fund for colleges and universities in Jiangsu Province (No.12KJD480002), and Qing Lan Project.
Volterri, et al., Materials Letters, Vol. 52 (2002)，p. 100 [2] M.
Kwon: Journal of Materials Processing Technology, Vol. 168 (2005), p.107 [9] F.L.
Chen: Journal of Materials Science & Engineering, Vol. 27 (2009), No. 3, P.415 (In Chinese) [10] F.l.
Chong:, Journal of Thermal Spray Technology, Vol. 22 (2013), No. 1, p.57

Acknowledgements The work is supported by the Natural Science Research Program of Education Department of Henan Province, China(No.2011C460003).
* The work is supported by the Natural Science Research Program of Education Department of Henan Province, China(No.2011C460003).
Fatigue and Fracture of Engineering Materials and Structures, 2006, 29(12): 1075~1082
Journal of Vibration Engineering,2004,17(2):190~195
Journal of Fluids and Structures, 2005,20: 763~783