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Effect of the welding heat input on residual stresses in butt-weld of high-speed train Zhongyin Zhu 1,a , PengChen 1,b,Hongmei Zhou1,c , Yonghui Zhu 1,d, Yonghong Chen 1,e,HaoXu1,f,Aiqin Tian2g 1School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China 2CSR Qingdao Sifang Co.
According to the mathematical model above,when using Sysweld to simulate welding thermal elastic-plastic finite element, we needed to take the materials’ nonlinearity into account, that means the correlation between the material properties and the temperature should be considered.
Compared with the weld area,the the materials with low temperature on both sides of the weld joint stop plastic deformation to recover yield strength primarily and this can inhibit the contraction deformation of the weld.
Acknowledgements The authors are grateful for the pillar projects in the national science & technology (Grant No. 2009BAG12A04-B03).
Welding Journal,2010,31（1）：97-104

The electrode materials La1-xSrxFe0.7Ni0.3O3 were 0.0≤ x≤0.2 ( LSFNx) were prepared by freeze- drying of an aqueous cation solutions method.
All materials show a semi conductor behavior between room temperature and 900°C.
Gomez- Romero, Journal of Power Sources 171 (2007) 552–557
Marrero-Lopez, Journal of Power Sources 279 (2015) 419- 427
Zheng, Materials Letters, 57 (2003) 4450

Introduction With the development of the electronic industry, telecommunication and polymer science, polymer materials have been widely used in electronics, telecommunications, aviation, aerospace , civil, military and defense industries.
But most of the polymer materials can not conduct electricity and have low permeability.
Chemical plating alloys of glass fiber have become a kind of new functional materials, structural materials and irreplaceable for the sustainable development of high-tech materials.
Obviously, alloy coatings were soft magnetic materials.
It described that the alloy coatings of the glass fiber were mainly used as absorbing materials.

The situation of a variety of particle size vibrating at the same time is so complex that current study are basically under the conditions of the uniform particle size of materials.
(1) Where mvP∆ -the pressure drop in the vibrating fluidized bed, [ aP ]; oH - the material height before fluidization, [m]; oε - the materials voidage before Fluidization; sρ - Material true density, [ 3 / mkg ]; gρ - Gas density, [ 3 / mkg ]; 2k - Vibration energy transfer coefficient; Γ - Vibration intensity ( gA / 2 ω ); mfP∆ - the pressure drop of the ordinary fluidized bed, [ aP ].
The material thickness when sub-fluidized was about 160mm.
[3] Yuji Tatemoto, Numerical simulation of particle motion in vibrated fluidized bed, Chemical Engineering Science, 2004, P.437
[4] Xuejun Zhu, Pressure drop theoretical analysis and experimental study in the vibrating fluidized bed, Vol.1, Journal of Sichuan University, 2007, P.78

Introduction Researches of improving of tool’s wear-resistance are actual for the machining processes of materials [1].
All this conditions has been required the application of different tool materials such as hard alloys.
Fig. 3.Tool unit Taking into account application of various burnisher body materials were developed two types of engineering design with different types of burnishing element mounting, with soldered and with mechanical fastening.
Applied Mechanics and Materials, 327 (2013) 1454-1459
Applied Surface Science. 276 (2013) 242-248.

Materials and methods Materials KM mice were obtained from The Fourth Military Medical University, Human-like collagen (Mw=97000) was provided by JuZi biogene technology Ltd.
All other materials used were of reagent grade and were used as received Methods Solution preparation Human-like collagen was labeled by FITC.
However, as a new material, many of its characteristics have not yet been fully studied.
Cevherogl, International Journal of Pharmaceutics. 179, 21–25 (1999)
Journal of Chromatography, 336, 93–104.

Morphologies and Properties of Epoxy Resin–low molecular weight polyamide Curing System Modified with Expanded Graphite Guixiang Houa, Shaowei Yaob, Xiaoming Sangc and Shouwu Yud Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials; College of Materials Science and Engineering, Hebei United University; Tangshan 063009, Hebei, China ahougx@heuu.edu.cn, byaoshaowei@heuu.edu.cn, cxmsang2007@163.com, dyushouwu@heuu.edu.cn Keywords: expanded graphite; epoxy resin; low molecular weight polyamide; curing system Abstract.
Experimental Materials.
Fig.1 Impact properties of EP-LPA/EG composite Fig. 2 Surface electrical resistance Rs of EP-LPA/EG materials composite materials Thermogravimetric Analysis.
European Polymer Journal.
European Polymer Journal.

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Vol.2(1998), p. 321-333 [5] Gern, H., and Librescu, L: AIAA Journal.
A: Journal of Intelligent Material Systems and Structures.

Lauglin, Progress in Materials Science, 44 (1999) pp 291-433 [3] L.A.
Drak, , Journal of Alloys and Compounds (2006) [4] S.
Farooque, Key Engineering Materials Vol. 442 (2010) pp 236-241 [5] Z.
Homma, Materials Transactions JIM, 32 No.6 (1991) pp 557-561 [12] F.Vodopivce, J.
Cullity, Introduction to Magnetic Materials, Addison Wesley, Ch. 11, 1972

However, very few reports are available on this combination, especially using perovskite materials as catalyst.
The EDX analysis was employed to determine the element of the synthesized materials.
Wu, Simulated-sunlight-activated photocatalysis of Methylene Blue using cerium-doped SiO2/TiO2 nanostructured fibers, Journal of Environmental Sciences, vol. 24, p. 1867–1875, 2012
Saleh, Preparation, Characterization and Photocatalytic Activity of Multifunctional Fe3O4/ZnO/CuO Hybrid Nanoparticles, Materials Science Forum, vol. 827, pp. 37-42, 2015
Yu, Spin dynamics in annealed Mn-doped ZnO ceramic materials, Solid State Communications, vol. 144, p. 134–137, 2007