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LARGE AMPLITUDE FREE VIBRATION ANALYSIS OF FUNCTIONALLY GRADED ANNULAR PLATES BOUTAHAR Lhoucine1, a, EL BIKRI Khalid1, b and BENAMAR Rhali2, c 1 Université Mohammed V-Souissi.
Li et al [16] studied the non-linear thermo mechanical post-buckling of circular FGM plate with geometric imperfection.
Amini, et al [22] studied stress analysis for thick annular functionally graded plate.
[28] El Kadiri M, Benamar R, White RG.
[29] EL Bikri K, Benamar R, Bennouna MM.

Quantitative Investigation of Hot Tearing of Al-Cu Alloy (206) Cast in a Constrained Bar Permanent Mold S.
In this study, a hot tearing apparatus with a load cell and LVDT developed at CANMET-MTL was used to measure the load and contraction in the mushy zone of an Al-Cu alloy.
The test method is similar with the one developed by Instone et al [9].
Melting and Pouring Al-Cu alloy 206 was slightly modified to ensure that it did not contain Ti and was tagged as M206.
According to Beackerud at el [17], when alloy A206.2 is solidified with a cooling rate of 0.6˚C, coherency is achieved around 641˚C when the fraction solid is 30%.

The Influence of Plastic Deformation on Lattice Defect Structure and Mechanical Properties of 316L Austenitic Stainless Steel Moustafa El-Tahawy1,2,a*, Jenő Gubicza1,b, Yi Huang3,c, Hyelim Choi4,d, Heeman Choe4,e, János L.
Martensitic transformations in 301LN and 316L steels were compared by Abreu et al. [10].
The martensitic transformation in 316L steel processed by HPT within a temperature range between -196 °C and 720 °C have been recently investigated by Scheriau et al. [9].
Ungár, Correlation between strength and microstructure of ball-milled Al–Mg alloys determined by X-ray diffraction, Mater.
El-Tahawy, Y.

%Al-1wt.
%Al, 1wt.
It is worthy to note that the average values of the loss modulus (EL= 21.24 ± 2.47 GPa for A1) and (EL= 18.87 ± 1.57 GPa for A2) are approximately one half of their storage modulus (ES= 38.56±3.81 GPa for A1) and (ES= 41.04±3.13 GPa for A2) showing high degree of viscosity of both samples.
%Al-1wt.

Al-Si coating has been deposited on AZ31 Mg alloy via PVD by Taha et. al. [17] where the effect of surface pre-treatment by means of plasma activation on the diffusion of Al-Si in the substrate was studied.
The magnetron was equipped with an aluminum-silicon (Al-Si) target (Inospectra, Kaunas, Lithuania) with 80% Al and 20% Si by weight.
There is a significant peak for Al followed by Si.
Conclusion Al-Si coating was applied on the modernized unit NNV-6,6- I 1, with a magnetron target with a component ratio of Al-80%, Si-20%.
[17] Taha, M.A., El-Mahallawy, N.A., Hammouda, R.M., and Nassef, S.I., PVD Coating of Mg–AZ31 by Thin Layer of Al and Al–Si.

Normal stress effects can be expressed in second grade fluid models, a special type of Rivlin–Ericksen fluids, but this model is incapable of representing shear thinning and shear thickening behavior of fluids, Aksoy et al
The problem of Casson fluid flow over a vertical porous surface with chemical reaction in the presence of magnetic field was stuided by Arthur et al. [12].
The numerical solution of unsteady MHD Falkner-Skan flow of Casson nanofluid with generative/destructive chemical reaction was reported by Ullah et al. [18] whilst Makinde et al. [19] analyzed the effects of Cattaneo-Christov heat flux on Casson nanofluid past a stretching cylinder.
(See Pramanik [24], El-Aziz [25], Ishak et al. [26] and Magyari and Keller [27]).
El-Aziz, Radiation effect on the flow and heat transfer over an unsteady stretching sheet, International Communications in Heat and Mass Transfer, 36 (2009) 521-524

Luo et al. [8] found the existence of the (Mg,Al)2Ca phase with an hexagonal structure in AMC503 alloy.
Liang et al. [5] reported that the Al2Ca phase can appear in the structure of Mg-Al-Ca alloys.
Commercially-pure Mg, Al, Sn and Mn were used, strontium and calcium were added in the form of Al-10 wt.% Sr and Al-85 wt.% Ca master alloys, respectively.
It is well known that the hexagonal (Mg,Al)2Ca phase in Mg-Al-Ca alloys has C36 or C14 Laves phase structures depending on the Al/Ca ratio [3].
Alloy Creep strain ε, % Steady-state creep rate [1/s] UTS [MPa] YTS [MPa] El. [%] ACJM53 0,33 5,7·10-10 135 104 2.1 ACTJM531 0,36 1,03·10-9 118 99 1.7 Fig. 9.

In the present study, the method of antibacterial susceptibility testing by Meghil et al.[22] was referenced to our study.
Interestingly, they exhibited higher antibacterial activity compared to the large-sized gold nanoparticles (80 nm) as reported earlier by Hernández-Sierra et al.[21].
[11] Ashraf S., Pelaz B., del Pino P., Carril M., Escudero A., Parak W.J et al., Gold-Based Nanomaterials for Applications in Nanomedicine, Top.
[13] Zawrah M.F., El-Moez S.A., Antimicrobial Activities of Gold Nanoparticles against Major Foodborne Pathogens, Life Sci.
[22] Meghil M.M., Rueggeberg F., El-Awady A., Miles B., Tay F., Pashley D. et al, Novel Coating of Surgical Suture Confers Antimicrobial Activity Against Porphyromonas gingivalis and Enterococcus faecalis, J.

Keyphrase extraction for bilingual documents El-Beltagy et al., (2009) present the KP-Miner system for extracting keyphrases from both English and Arabic documents, and it is easily adapted to work with any other language[3].
References [1] Pudota Nirmala, et, al.
ACM TRANSACTIONS ON INFORMATION SYSTEMS, 2010; 28(2) [3] El-Beltagy Samhaa R.; Rafea Ahmed.
COMPUTERS & EDUCATION, 2008; 50(3): 807-820 [5] Hacohen-Kerner Yaakov, et al.
CYBERNETICS AND SYSTEMS, 2007; 38(1): 1-21 [6] Gulla Jon Atle, et, al.

Gepreel1,c 1Materials Science and Engineering, Egypt-Japan University of Science and Technology, New Borg El-Arab City 21934, Alexandria, Egypt. 2Energy Materials Department, Institute of Basic and Applied Science, Egypt-Japan University of Science and Technology, New Borg El-Arab City 21934, Alexandria, Egypt. 3Physics Department, Faculty of Science, Kafelheikh University, Egypt.
However, in 2004, Yeh et al. introduced a new novel alloy design where more than 5 elements with equal atomic ratios were mixed to show high mixing enthalpy and entropy.
Liu et al.[15] also observed that heat treatment below 700 ˚C, the microstructure of the AlCoCrFeNi0.8 high entropy alloy coating remained unchanged.
Zhang et al., “Microstructures and properties of high-entropy alloys,” Prog Mater Sci, vol. 61, pp. 1–93, 2014, doi: https://doi.org/10.1016/j.pmatsci.2013.10.001
Ebied, “Phase Prediction, Microstructure and Mechanical Properties of Fe–Mn–Ni–Cr–Al–Si High Entropy Alloys,” Metals (Basel), vol. 12, no. 7, Jul. 2022, doi: 10.3390/met12071164