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Experimental The milling of SiCp/Al composites were performed on a milling machine center.
The SiCp/Al composites have Vf =45 % SiC reinforcements with an average size of 3um.
The microstructure of SiCp/Al composites used is shown in Fig.1.
Fig.3.b) shows that the percentage of Al, Si and O element is higher than the matrix.
El-Gallab and M.

Oyarzo-vera et al present seismic zonation for the selection of ground motion records for time history analysis of buildings in the North Island of New Zealand [12].
The earthquakes selected were; El Centro 1940-Imperial valley (USA), Hokkaido 2003 (Japan), Christchurch February 22, 2011, as given by the Resthaven station (New Zealand).
The two first ground motion records have been suggested by Oyarzo-vera et al [12]for site class D in the North Island.
[5] Dantanarayan, H., et al., Quantifying building engineering demand parameters in seismic events, in 15WCEE, Lisoba, 2012
[7] DeBock, D.J., et al., Importance of seismic design accidental torsion requirements for building collapse capacity.

El-Raghy, J.
Huang. et al.
El-Raghy, M.W.
El-Raghy, M.W.
Gong, et al.

EL_Centro wave and Lanzhou wave are respectively exerted to the structure, both of which fit for the site soil of Type Ⅱ.
Fig.9 Shear of core tube under EL_Centro wave Fig.10 Shear of total base under EL_Centro wave Fig.11 Shear of core tube under Lanzhou Wave Fig.12 Shear of total base under Lanzhou Wave Mechanism Analysis.
[4] P.Fajfar & M.Fischinger: Mathematical Modeling of Reinforced Concrete Structural Walls for Nonlinear Seismic Analysis, Structural Dynamics, 1990:471-478 [5] Kabeyasawa, T.Et al,U.S.

Abd El Meguid, N.A.
Abd El Rehim: submitted to Materials Chem.Phys. (2000)
Muthe, et al: submitted to Corros.
El-egamy, W.A.

El Araby et all. [8] treated synthetic solutions via ozone technology, using iron and manganese sulphate, converting ferrous ions (Fe2+) to ferric state (Fe3+) and (Mn2+) to (Mn4+).
(1) After ozonation Before ozonation Fig. 2 Cyclic voltammograms obtained at the determination of the aluminum ions, at 25oC Table 2 Theoretical and experimental data of the aluminum ions determination by cyclic voltammetry in an aqueous solution of Al2(SO4)3·18H2O, at 25 oC Substance Gross sample Ozonated 30 min Ozonated60 min Ozonated90 min Normal potential in standard conditions [V] Measured potential [V] Al2(SO4)3·18H2O blue red green yellow -1,66 -2,31 -1,60 -2 The reactions that could take place are: Al3+ + 3e- Alo (2) Al(OH)3 + 3e- Alo + 3 OH-
El Araby, S.
El Diwani: Desalination Vol.249 (2009), p.1343

Church of El Carmen, 6.
Tolles et al
[8] Javier, L et al. (2008)."
El Terremoto del 15 de Agosto de 2007 (MW+7.9), Pisco, Peru.
[9] Jörgen, J et al. (2007).

Investigation of the wear mechanism of PCD milling tool for machining Al-Si alloy at cutting speed of 5000m/min (n=12732r/min) has been performed.
PCD is the perfect material than carbide for machining Al-Si alloy [4, 5].
Machined surface of cylinder head is shown in Fig.2, and the composition of Al-Si alloy material is shown in Table 2.It is notable from table 2 that the work piece is fabricated by Al-Si alloy with squeeze casting process and the weight fraction of Si is 11.39%.
From Fig.7, we can find that some other elements such as Fe, Al, Si which are available with high ratios in the structure of the work-piece exist in the material of place B.
[4] M.El-Gallab,M.Sklad: Machining of Al/SiC Particulate Metalmatrix Composites.

Effect of Al3(Sc,Zr) Particles on Tensile Properties of an Al-Zn-Mg-Cu-Sc-Zr Alloy This paper is dedicated to Prof.
Introduction 7000 series Al-Zn-Mg-Cu alloys are extensively used in the aerospace industry because they possess the highest strength among all commercial Al alloys [1].
Zn Mg Cu Mn Fe Si Zr Sc Al 7.17 2.20 1.58 0.3 0.13 0.09 0.18 0.18 Balance Table 1.
The presence of the Ashby-Brown contrast for bright-field images of these particles, as well as the common locations of the (h,k,l)Al and (2h,2k,2l)L12 electron diffraction spots, confirmed that the particles were coherent with the Al matrix.
Treatment ID W24 temper (Aging at RT for 24 h) T6 temper (Aging at 120ºC for 19 h) YS [MPa] UTS [MPa] El % YS [MPa] UTS [Mpa] El % 460-1 331 503 15.0 532 592 11.8 460-4 309 488 17.0 540 600 8.7 460-20 296 485 17.5 519 596 9.2 460-48 294 489 16.8 500 582 11.4 480-1 303 471 15 528 597 8.2 480-4 301 480 15 532 613 8.6 480-20 280 480 20.3 508 591 11.3 480-48 275 477 21.3 495 587 15.0 Table 3.

Kadirgama et al. [5] studied the cutting tool life and wear mechanism of Hastelloy-C22HS.
Akıncıoğlu et al. [1] studied the role of cryogenic treatment for carbide cutting tools to improve the machinability of Hastelloy-C22.
Therefore, the parameters were taken from previous research studied by Abotula et al. [16]
[3] Choudhury, I., and El-Baradie, M., “Machinability of nickel-base super alloys: a general review”, J.
[8] Kadirgama, K., Abou-El-Hossein, K.