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Columnar to equiaxed transition in solidification processing[J] .Science and Technology of Advanced Materials ,2001(2):185 - 191 [2] Shenoy M M, McDowell D L, Neu R W.
International Journal of Plasticity, 2006,22(12): 2301-2306 [3] Liping Feng, Weidong Huang, Xin Lin, etal.
Epitaxial laser metal forming:analysis of microstructure formation[J].Materials Science and Engineering,1999,A271:232-241

College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093,Yunnan,China 2.
Institute of Structural Materials, Central Iron and Steel Research Institute, Beijing 100081, China aljwj981@126.com, bnina8117@163.com, c529797550@qq.com, dsujie@163.com, ekyzhaoy@yahoo.com.cn Keywords: supermartensitic stainless steels; potentiodynamic polarization curves; pitting potential; Abstract.
Sokolowski: Journal of ASTM International, Vol. 3(2006), P.1 [5] J.

Acknowledgements These researches are supported by National Key Technology R&D Program in the 11th Five year Plan of China (2007BAF09B01); Scientific and Technological Personnel Action Projects Served for Enterprises (2009GJB00025), Program for science and technology research of Liaoning Province (2009220025), Liaoning Provincial Department of Education projects (LT2010087, LS2010129) References [1] Changhai Zhao, Dianxiang Lin, and so on.
Journal of Shenyang Jianzhu University(Natural Science).
Advanced Materials Research Vol. 102-104 (2010), P. 223-226 [10] He Wang, Yuhou Wu, Hong Sun, Tengyue Wang and Kaijun Zhao.
Advanced Materials Research Vol. 102-104 (2010), P. 219-222 [11] Lanying Yu and Yuanning tang.

Today, carbide is a major tool in manufacturing tool materials.
Because of these feature, compared with the traditional mechanical contact passivation , electrochemical - mechanical reducing the workpiece and grinding tools and materials for direct losses.
But for carbide materials, the surface after electrolysis will produce a layer of dense blue passivation film, and other more obvious white oxidation also producted , and in order to remove the oxide film, increase the cleaning step of mechanical passivation after electrochemical , in which the mechanical passivation round metallic composite materials using appropriate.
At the time, in fact, the total absence of heat and rough force, it’s surface have not distortion, and no burr and organization of materials aberrations.
CIRP Journal of Manufacturing Science and Technology, 2008; 1/2 :76-80.

The measurement procedure was performed on all the welded specimens taking notes of 3 strains (ε1 ε2 ε3) relative to as many gages at different depths, following the American Society for Testing Materials (ASTM) standard.
This laser is a high frequency excited, diffusion cooled C02 gas laser, designed to be used for processing materials in an industrial environment.
Materials properties are phase and temperature dependent (table 5 for room temperature mechanical properties).
Kermanidis, Numerical simulation of the laser welding process in buttjoint specimens; Journal of Materials Technology Processing 134 (2003) 59-69
Lu, Residual stresses in laser welded aluminium plate by use of ultrasonic and optical methods, Material Science and Engineering A 382 (2004) 257-264

As a new structural system with a bright prospect, multi-ribbed composite slab structure has the advantages of ecological materials and seismic performance.
This paper adopts beam element and shell element, considering the nonlinear properties of materials, forming mixed model of shell element and beam element.
Acknowledgments The material in this paper is based upon work supported by the Fundamental Research Funds for the Central Universities No. 2009JBM071 and Grant No. 50878021 from the National Nature Science Foundation of China References [1] Shahe Liang, Zhongfan Chen:Approach for the formula to calculate the natural period of vibration of brick building of frame of ground floor in Jiangsu Construction (2006), 18(1) [2] Yuansheng Liang, Hong Xu, Y.C.
Wang:The calculation and measure of the natural period of vibration ofhigh-rise building structures ,Henan Construction (2005)(5) [3] Jinshu Zhang: Modal identification of Multi-ribbed Wall Slab structure based on method in time domain in master's thesis of Beijing Jiaotong University (2000) [4] Dong Zhao, Q.F.Yao: The calculation of stiffness of Multi-ribbed Light Frame structure in Journal of Xi’an University of Architecture and Technology (1999)(9) [5] Ward Heylen, Stefen Lammens, Paul Sas: Modal Analysis Theory and Testing (2001) [6] Manual for SAP2000, CSI Company

Introduction The effort of promoting light weight design in the wide spectrum of industry can be realized by application of new materials.
There are two groups of materials which are being focused on by industry at the moment.
One group consists of materials with a low density such as aluminum, magnesium or carbon fiber reinforced polymers, while the other group consists of high strength steels.
Examples of attempts of application of deep CNNs in the materials science can be found in work [6], where deep CNN was used in detection of defects on upper and lower part of rolled steel strips.
Therefore, the Authors plan to continue research in this domain, as well as in application to other, similar problems of materials engineering.

Highly luminescent II-VI semiconductor nanocrystals or colloidal quantum dots (QDs) are interesting materials because of their applications in optoelectronics, nonlinear optics, and biology [3].
In general, their properties make QDs attractive materials for fabrication of hybrid semiconductor QD-organic LEDs with a highly saturated emission colour.
Experimental Work Chemical Materials All materials used in this work were supplied from Fluka Company without further purification, while N,N’-Bis(3-methylphenyl)-N,N’-bis(phenyl) benzidine (TPD) was supplied by American Dye Source (Canada).
Krueger et al., Hole-Transporting Host-Polymer Series Consisting of Triphenylamine Basic Structures for Phosphorescent Polymer Light-Emitting Diodes, Journal of Polymer Science: Part A: Polymer Chemistry, Vol. 48, (2010), 3417–3430
Willander, Study of the Distribution of Radiative Defects and Reabsorption of the UV in ZnONanorods-Organic Hybrid White Light Emitting Diodes (LEDs), Materials, Vol.4, (2011), 1260-1270

Introduction Bulk nanostructured (NS) materials are perspective constructional and functional materials due to their unique combination of physical and mechanical properties.
Fundamentally, these studies are of interest to obtain new information about behavior of the processes of plastic deformation in the constrained conditions and processes of the evolution of the defective structure in the materials.
Alexandrov, Bulk nanostructured metallic materials, Akadem-kniga, Moscow, 2007
Kopylov, Processes of plastic structure formation of the metals, Science and Technology, Minsk, 1994
Gunderov, High-speed deformation of metallic materials using channel angular pressing for producing an ultrafine-grained structure, Russian metallurgy (metally), 4 (2010) 323-327

The study is done on an elasto-plastic material obeying to the von Mises criterion.
In order to follow up the sequences of large deformations, we have used the sequential analysis procedure; it consists in the updating of material properties and geometrical configuration after each sequence.
The variational formulation for elasto-plastic materials with frictional contact is presented in third section, and the implementation of the finite element method discretization with computational procedure is discussed in fourth section.
In this work, elasto-plastic material model is considered.
Touzot, Journal of theoretical and applied mechanics, Special issue, supplement n°1 vol 7, (1988) [16] E.