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He also proposes to use CoreLok method to determine the bulk volume relative density of 3# material.
The aggregate density measured under different water temperature can be modified for its water temperature based on current testing method. 2.4 Other specifications (1)Testing instruments and materials, preparations, sampling volume are equivalent to the current testing method
A mixture density of raw materials for calculating concrete volume method [J].
Journal of Zhejiang Institute of Communications, 2008, 9(1): 19-22 [11] Han Xiu-qing, Ma Xia, Bai Ji-xiang.
Shandong traffic science and technology, 2010, 6: 13-15

Discussion The mechanical properties of UFG materials prepared by ECAP are strongly influenced by the details of the SPD process.
Acknowledgement The Czech Science Foundation under contract 108/10/2001 financially supported this work.
Alexandrov, Bulk nanostructured materials from severe plastic deformation, Progress in Materials Science. 45 (2000) 103-189
International Journal of Fatigue 32 (2010) 898-907
Materials and Design 30 (2009) 2636-2641.

The unique advantages of γ-TiAl based alloys may be dissimilarly combined with materials exhibiting higher fracture toughness and ductility, and thus balancing disadvantages such as high brittleness and pronounced notch sensitivity of γ-TiAl.
Experimental Procedure Materials: The materials in this study were Ti-47Al-3.5(Mn+Cr+Nb)-0.8(B+Si) in investment cast and hot isostatic pressed condition and wrought Ti6Al4V (denoted as γ-TAB and Ti64 in this study).
The axial hardness profile captures the base materials as well as the TMAZ; a) Microhardness measurements parallel to the bond line; b) Microhardness measurements across the bonds. 3.3 Microstructure and Microtexture Grains within the Ti64 base material were equiaxed, their average size was about 4.0 µm (Fig. 3a).
Duan et al.: Science and Technology of Welding and Joining Vol. 9 (2004), No. 6, p. 525
Çam et al.: Journal of Materials Science Vol. 43 (2008), p. 3491

Sheppart: Shape optimization using FEA software: A V-shaped anvil as an example, Journal of Materials Processing Technology Vol. 120 (2002), p. 426-431
Jordanov: Global optimization based on novel heuristics, low-discrepancy sequences and genetic algorithms, European Journal of Operational Research Vol.196 (2009), p. 413–422
Olhoff: Global Reliability-Based Design Optimization, International Journal of Nonconvex Optimization and its Applications Vol. 74 (2003), p. 255-274
El Hami: Improved method as a robust toll for reliability based design optimization, International Journal of Structural and Multidisciplinary Optimization Vol. 32 (2006), p. 203-213
Part III, Springer Science & Business Publisher, Changsha, China, 2005

Isothermal extrusion study and simulation of magnesium alloy For hilt of electric screwdriver Chuntian Li1, a, Chang Wang2, b, Yamin Hu1, c 1College of Material Science and Engineering, Chongqing University of Technology, No.69 HongGuang Road, Ba’nan district, Chongqing, P.R.
Preface Magnesium alloys have wide applications in automobiles, aerospace; communication industry and so on due to it is the lightest alloys in the structural materials of metal.
Its material is AZ31D Magnesium Alloy.
Materials Review, 2000, 14; 53-56
The latest progress and prospects of Mg alloys [J].The Journals of Metal Technology.2001, 51(1); 2-13

Experiments The pre-corrosion sheet material for this study was satisfied the specifications for the LC4 designation.
The 3D models adopted linear material model with a Young’s modulus of elasticity (E) 71.7 GPa and a Poisson’s ratio of 0.33 in the LMS analysis.
Engineering Fracture Mechanics Vol.59 (1998), p.305 [4] American Society for Testing and Materials, U.S.
ASTM G34-01(2007) [5] American Society for Testing and Materials, U.S.
Computer Vision: Graphics and Image Processing Vol.33 (1986), p.174 [7] DuQuesnay D L，Underhill P R，Britt H J: International Journal of Fatigue Vol.25 (2003), p.371

The 3D NonLinear Cementitious 2 material model was selected to govern the gradual evolution of localized damage.
The best strategy is automatically selected to achieve the most accurate results for a wide range of different materials while maintaining reasonable computational demands.
Merta, Quasi-brittle behaviour of composites as a key to generalized understanding of material fracture, Procedia Engineering 190 (2017) 126–133
Černý, Characterization of geopolymers prepared using powdered brick, Journal of Materials Research and Technology 8 (2019) 6253–6261
[5] RILEM TC-50 FMC, Determination of the fracture energy of mortar and concrete by means of three-point bend test on notched beams, Materials & Structures 18 (1985) 285–290

The development of new materials for the effective repair of the skeletal system is an outstanding goal of biomaterials science.
These materials should cover a broad functional spectrum which includes cementitius, structural and bioactive function [2].
To this aim, to prepare new materials with peculiar technological properties, great interest is devoted to the study of the solutions adopted.
Materials and methods Preparation of n-Y/HA particles HA suspension was prepared by a wet chemical reaction of precipitation following the reaction of Aoki [5]. 10 Ca (NO3)2 + 6NH4H2PO4 + NH3·H2O → Ca10(PO4)6(OH)2 + 6NH4NO3 (1) The reactant concentrations are 50mmol/l for the calcium nitrate and for the NH4H2PO4 respectively.
Chen and Y.B Li: Journal of Wuhan University of Technology-Mater Sci Ed.

Numerical Simulation on Influence of Water-cooled Stool in the Process of Unidirectional Solidification LI Xiaodong1,a*, SHEN Minggang2,b,WU Chao3,c 1.2.3 School of Materials and Metallurgy, University of Science and Technology Liaoning,Anshan114051, China a402610152@qq.com, blnassmg@163.com, c417032886@qq.com Keywords: water-cooled stool; finite element; unidirectional solidification; temperature field; numerical simulation Abstract: To strengthen the bottom cooling is one of the key technologies of directionally solidified ingot process.
Therefore, the inventors open groove or inclination on the insulation material which in the side wall, thereby limiting the reverse curls, strengthens the cooling, and increasing the directional solidification of ingot height, with a relative reduction in the volume.
Calculations involving materials are isotropic; 6.
Metals and Materials International. 2000, (6): 189-194
Journal of Materials Processing Technology.2006, 29-33

Measuring AC losses and critical current of high pressure synthesized MgB2 bulk rings by the transformer method MEEROVICH Victor1, a, SOKOLOVSKY Vladimir1,b, PRIKHNA Tatiana2,c and GAWALEK Wolfgang3,d 1 Physics Department, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel 2 Institute for Superhard Materials of the National Academy Sciences of Ukraine, 2, Avtozavodskaya Str., Kiev, 04074, Ukraine 3 Institut fur Photonicsche Technologien, Albert-Einstein Strasse 9, Jenna, D-07745, Germany avictorm@bgu.ac.il, bsokolovv@bgu.ac.il , cprikhna@mail.ru, d wolfgang.gawalek@ipht-jena.de Keywords: bulk MgB2 superconductor, AC losses, critical current Abstract.
The recently developed manufacturing technologies use high pressure and various doping additions to prepare bulk MgB2-based materials with high critical current density which achieves a few millions of amps/cm2 in zero magnetic field at 20 K [1,2].
Two types of possible pinning centers exist: Mg-B-O inclusions responsible for the pinning in low magnetic fields and attaining extremely high Jc, and grains of higher borides being effective pinning centers, which in combination with introduced into MgB2 structure carbon allowed attaining high Jc for the bulk MgB2-based materials.
Schultz: Journal of Superconductivity: Incorporating Novel Magnetism, Vol. 15, No. 6, (2002), pp. 599-601 [7] A.
Freyhardt, Deutsche Gesselschaft für Material-Kunde e.