Search results

Chamkha et al. [4] studied effects on mixed convention in heat and mass transfer of a non-Newtonian fluid saturated in a non-Darcy porous medium.
Mohammadein and El-Shaer [6] extended studies on combined free-forced convection flow over a vertical plate by incorporating the variable permeability, thermal conductivity.
Nalinakshi et al. [13] studied the effect of MHD flow over a vertical heated plate in a porous medium by considering variable fluid properties.
Muthuraj et al. [14] studied MHD flow of a couple stress fluid through a horizontal wavy surface with viscous dissipation in a porous medium.
Mohammadein and N.A El-Shaer, Influence of variable permeability on combined free and forced convection flow past a semi-infinite vertical plate in a saturated porous medium, Heat Mass Transfer, 40 (2004) 341-346

[2] Effect of Plastic Deformation on Electrical and Mechanical Properties of Some 5xxx Al Wrought Alloys M.
Z-El-Sayed, Ahmed G.
Introduction High-Mg 5xxx series Al–Mg alloys have, due to their higher strength than 3xxx Al alloys, found use in beverage can ends.
Eliminating or lowering surface roughening is a serious concern in the Al industry and particularly in the automotive industry.
The solute drag also increases the work-hardening rate in Al alloys.

Gao Feng et al, [3] and Z.
Karakostas et al, [4] respectively studied the dynamic responses of the subway running tunnels and unlined tunnels in soil.
Shang et al[8] and Gong et al[9] studied respectively the shaking response of the single-floored and girderless multispan structure and the rectangle frame subway station in dry sand.
Besides, El centro wave was input in the test, for it contains many low frequency components.
In the following, the acceleration time curves, which are attained when the input wave is El centro Wave, are used in analysis.

In addition, when the content of Cu increases, more layered Ti3AlC2 grains react with Cu and form irregular shaped grain containing Cu, Ti, Al and C elements.
Moreover, Barsoum [8] has mentioned that the Si atoms between TiC0.67 layers in Ti3SiC2 easily migrate outwards and react with molten Al.
(a) consists of many Cu besides Ti, Al and C.
In addition, when the content of Cu increases, more layered Ti3AlC2 grains react with Cu and form irregular shaped grain containing Cu, Ti, Al and C elements.
El-Raghy: J.

. %] С Cr Ni Mn Mo S P Al N 1 Cr18Ni10** <0,08 17,0–19,0 9,0–11,0 <2,0 – <0,020 <0,035 – – 2 Cr18Ni10Тi 0,10 17,7 9,5 1,19 0,10 0,007 0,027 0,11 <0,01 3 Cr18Ni10N (N=0,135 %) 0,05 18,0 10,3 1,04 – 0,015 0,023 0,10 0,135 4 Cr18Ni10N (N=0,186 %) 0,05 18,1 9,6 0,82 <0,10 0,018 0,025 0,12 0,186 5 Cr18Ni10N (impurity free, N=0,220 %) 0,007 19,1 9,3 1,42 0,012 0,004 0,002 0,035 0,220 6 Cr18Ni5Mn9Мo2N 0,06 16,8 4,5 9,1 2,25 0,011 0,007 0,035 0,240 7 Cr19Ni6Mn10Мo2N 0,09 18,7 6,1 10,1 1,7 0.005 0,011 0.005 0,311 * – other Fe, wt. %; ** – GOST 5632-72, AISI 304 requirements The composition 1 in the table 2 is given for comparison with GOST.
Steel Тtest, [°С] HV, [МPа] UTS, [МPа] YS, [МPа] El/ElU*, [%] y, [%] KCU (KCV), [MJ/m2] MS, [°С] 2 Cr18Ni10Тi +20 210 514 231 47 51 (2,2) 23 3 Cr18Ni10N (N=0,135 %) +20 258 527 316 29 63 (2,2) -14 4 Cr18Ni10N (N=0,186 %) +20 241 714 354 25 67 (1,7) -7 5 Cr18Ni10N (impurity free, N=0,220 %) +20 240 748 399 63/44 84 3,9 -15 -163 - 1065 645 39/31 78 2,5 6 Cr18Ni5Mn9Мo2N +20 255 835 543 50/40 72 2,6 -126 -163 - 1158 842 26/17 70 1,4 7 Cr19Ni6Mn10Мo2N +20 298 926 691 33 62 - - * – ElU- uniform elongation, El- total elongation.
In uniform strain region which equals to ~20 % the steel remained non-magnetic austenitic steel, and only after fracture strain point (El=26 %) a small amount of ferromagnetic phase was discovered in necking region only, using magnetic method (Table 4).
On the one hand, at -163 °С steels have rather high ductility: El=26 %, ψ= 70 % for stable austenitic steel Cr18Ni5Mn9Мo2N (6) and El=39 %, ψ=78 % for steel Cr18Ni10N (5) – due to trip-effect.

Zein El Abedin, F.
El Abedin, N.
El Abedin, F.
El Abedin, F.
El Abedin, F.

El-Din and Smith [10] also found that the ozonation process was more effective in removing the color and AOX than COD and TOC and it also caused the increase of the biodegradability of the pulp mill effluent.
Verenich et al. [18] also found that ozonation was capable of selectively removing the LWEs from paper mill circulation water.
Ko et al. [21] utilized O3/AC to treat pulp mill effluent and found that reduction of COD increased from 55% of single ozonation to 63%.
El-Din and D.W.
El-Din, D.W.

The addition of Al is disadvantageous to the formation of microduplex (α+θ) structure, but can result in the further refinement.
With the addition of Al, the strength of microduplex (α+θ) structure was improved and the ductility was not deteriorated markedly.
The second one is a Al alloyed hypereutectoid steel containing 1.00C, 0.31Mn, 0.27Si, 0.95Al and the balance Fe (wt%), termed as Steel B.
The addition of Al is disadvantageous to the formation of microduplex (α+θ) structure, but can result in the further refinement.
With the addition of Al, the strength of microduplex (α+θ) structure was improved and the ductility was not deteriorated markedly.

[55] Chen, L.; El-Wardany, T.I.; Harris, W.C.
[69] El-Axir, M.H.
[71] El-Wahab, A.I.; Kishawy, H.A.
[76] El-Sonbaty, I.A.; Khashaba, U.A.; Selmy, A.I.; Ali, A.I.
[80] Dweiri, F.; Al-Jarrah, M.; Al-Wedyan, H.

Liu, et al.: J.
Chen et al.: J.
Al Kalfioui et al.: J.
El-Yadouni, A.
Li et al.: J.