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Online since: January 2019
Authors: Xun Ji Li, Fa Gen Li, Wei Wei Li, Xian Ming Li, Quan Feng, Ze Liang Chang
[2] Russell D K, at el.
[3] Singh, B., et al.
[6] LI Fagen, MENG Fanyin, GUO Lin, at el.
[7] Xu Aihua, YUAN Zhengang, YANG Guang, at el.
[8] CHANG Zeliang, JIN Wei, CHEN Bo, at el.
[3] Singh, B., et al.
[6] LI Fagen, MENG Fanyin, GUO Lin, at el.
[7] Xu Aihua, YUAN Zhengang, YANG Guang, at el.
[8] CHANG Zeliang, JIN Wei, CHEN Bo, at el.
Online since: August 2022
Authors: Abdelkader Baidri, Driss Bria, Fatima Zahra Elamri, Farid Falyouni
El Ghazi, W.
El Kadmiri, A.
El Kadmiri, F.
Kerkour El Miad, D.
Z., Falyouni, F., Kerkour-El Miad, A., & Bria, D.
El Kadmiri, A.
El Kadmiri, F.
Kerkour El Miad, D.
Z., Falyouni, F., Kerkour-El Miad, A., & Bria, D.
Online since: April 2014
Authors: Hui Zhong Li, Jun Jiang, Xiao Peng Liang, Yang Jie Ou, Hui Juan Liao
Xu Chen[11] and Mukhopadhyay[12] studied the phases in the cast Al-4.1Cu-1.37Mg-0.2Er alloys and Al–4Cu–0.5Mg alloys, and identified that the major phases as α(Al), θ(Al2Cu) and S(Al2CuMg).
The high purity Al-Cu-Mg ingot was prepared with pure Al, Zn, Mg and Al-Cu, Al-Mn, Al-Zr master alloys by reducing Fe, Si based on Al-Cu-Mg alloy.
Phase Al Cu Mg Mn Fe A 66.62 31.62 1.76 — — B 80.19 7.63 1.67 6.30 4.21 C 75.73 13.07 11.20 — — Fig. 2 Microstructures of as-cast Al-Cu-Mg alloy Fig.3 shows the SEM microstructure and the main elements Al, Cu and Mg distribution of as-cast Al-Cu-Mg alloy.
Fig. 6(a) shows the line scanning analysis of as-cast Al-Cu-Mg alloy.
[6] Mohamed Ibrahim Abd El Aal, Influence of the pre-homogenization treatment on the microstructure evolution and the mechanical properties of Al–Cu alloys processed by ECAP, Materials Science and Engineering A. 528(2011) 6946–6957
The high purity Al-Cu-Mg ingot was prepared with pure Al, Zn, Mg and Al-Cu, Al-Mn, Al-Zr master alloys by reducing Fe, Si based on Al-Cu-Mg alloy.
Phase Al Cu Mg Mn Fe A 66.62 31.62 1.76 — — B 80.19 7.63 1.67 6.30 4.21 C 75.73 13.07 11.20 — — Fig. 2 Microstructures of as-cast Al-Cu-Mg alloy Fig.3 shows the SEM microstructure and the main elements Al, Cu and Mg distribution of as-cast Al-Cu-Mg alloy.
Fig. 6(a) shows the line scanning analysis of as-cast Al-Cu-Mg alloy.
[6] Mohamed Ibrahim Abd El Aal, Influence of the pre-homogenization treatment on the microstructure evolution and the mechanical properties of Al–Cu alloys processed by ECAP, Materials Science and Engineering A. 528(2011) 6946–6957
Online since: September 2013
Authors: Mustufa H. Abidi, Abdulaziz M. El-Tamimi, A.M. Al-Ahmari, Mohammed Sarvar Rasheed
El-Tamimi1, c and A.
Nirala et al. and Rasheed et al. applied the Taguchi approach to optimize the process parameters in the drilling of micro holes using μ-EDM process [5, 6].
Jeong et al.
Al-Ahmari, A.
El-Tamimi, and M.
Nirala et al. and Rasheed et al. applied the Taguchi approach to optimize the process parameters in the drilling of micro holes using μ-EDM process [5, 6].
Jeong et al.
Al-Ahmari, A.
El-Tamimi, and M.
Online since: January 2016
Authors: Roslee Ahmad, M.B.A. Asmael
RE intermetallic indicates Al-Cu phase interrupted the quality of Al-Si-Cu casting alloy.
Table 1: Chemical Composition of Al-S-Cu Alloy.
From EDS result, the Ce and La rich intermetallic phases are likely to be quaternary Al-Si-Cu-Ce Fig.3(a) and Al-Si-Cu-La Fig.3(b).
Kaufman, E.L.
Al-Ahmari, F.
Table 1: Chemical Composition of Al-S-Cu Alloy.
From EDS result, the Ce and La rich intermetallic phases are likely to be quaternary Al-Si-Cu-Ce Fig.3(a) and Al-Si-Cu-La Fig.3(b).
Kaufman, E.L.
Al-Ahmari, F.
Online since: December 2013
Authors: Abdullah Aslam, Nor Adrian Bin Nor Salim, Mohd Firdaus Bin Abas, Hamidon bin Salleh
Wang et. al.
Guo et. al.
Multiple 0.3 – 3 _ _ _ Increase _ 2012 E.L.
Single 2 – 8 _ _ Decrease 17.5% _ _ 2012 E.L.
Lee et. al.
Guo et. al.
Multiple 0.3 – 3 _ _ _ Increase _ 2012 E.L.
Single 2 – 8 _ _ Decrease 17.5% _ _ 2012 E.L.
Lee et. al.
Online since: June 2008
Authors: Sergey V. Dobatkin, P.D. Odessky, Svetlana V. Shagalina
Low-carbon low-alloy steels after ECAP are characterized by high strength (UTS > 1000
MPa) and plasticity (EL = 10-15%).
KCV, MJ/m2 State UTS, MPa YS, MPa EL, % RA, % +20 о C -40оC Initial State (920 о C, air cooling) 505 340 16 - 0,22 0,13 ECAP (T=20 oС, N=2, φ=90 о) 980 980 5,0 - 0,13 0,06 ECAP + heating 500 оC, 5 h. 785 775 5,3 63,1 0,80 0,69 3.
The strength of the 0.09%C-Mo-V-Nb steel at 600oC is substantially higher than that of the 0.1%C-Mn-V-Ti steel. 0 200 400 600 800 1000 1200 0 100 200 300 400 500 600 700 800 0 20 40 60 80 100 120 140 YS, МРа EL, % Т, оС Summary High pressure torsion of low carbon steels at a temperature below 0.3 Tm to the true strain of 4-6 leads to the formation of nanocrystalline structure with a grain size of <100 nm or a mixture of oriented substructure and nanograins.
SMC structure of low carbon (0.14%C and 0.1% C-B) steels after ECA pressing provides a high strength (UTS=800-1235 MPa and EL=7-11%).
Pippan et al: Metals 1 (2004), p.110(in Russian)
KCV, MJ/m2 State UTS, MPa YS, MPa EL, % RA, % +20 о C -40оC Initial State (920 о C, air cooling) 505 340 16 - 0,22 0,13 ECAP (T=20 oС, N=2, φ=90 о) 980 980 5,0 - 0,13 0,06 ECAP + heating 500 оC, 5 h. 785 775 5,3 63,1 0,80 0,69 3.
The strength of the 0.09%C-Mo-V-Nb steel at 600oC is substantially higher than that of the 0.1%C-Mn-V-Ti steel. 0 200 400 600 800 1000 1200 0 100 200 300 400 500 600 700 800 0 20 40 60 80 100 120 140 YS, МРа EL, % Т, оС Summary High pressure torsion of low carbon steels at a temperature below 0.3 Tm to the true strain of 4-6 leads to the formation of nanocrystalline structure with a grain size of <100 nm or a mixture of oriented substructure and nanograins.
SMC structure of low carbon (0.14%C and 0.1% C-B) steels after ECA pressing provides a high strength (UTS=800-1235 MPa and EL=7-11%).
Pippan et al: Metals 1 (2004), p.110(in Russian)
Online since: August 2020
Authors: Mohamed A. Hassaan, Marwa R. Elkatory, Rehab M. Ali
El-Khaiary: J.
El Nemr, M.A.
El-Kady, H.S.
Al-Deyab: J.
El Katory, M.
El Nemr, M.A.
El-Kady, H.S.
Al-Deyab: J.
El Katory, M.
Online since: September 2013
Authors: R.Y. Zhang, Z.H. Guo, J. Wang, S.J. Tu, G.Y. Zhao
Mori et al. [4] enclosed the spinning setup in a chamber and used hot air to heat cast aluminium blank.
Davidson et al. [5] found the depth of cut, the feed, the starting dimension of the preform, the starting heat treatment condition of the preform and the speed of the mandrel had significant role in the quality of the final product.
To analyze the forming characteristics and laws of hot splitting spinning process of magnesium alloy AZ31, Yang et al. [6] established a 3D elastic–plastic FE model of hot splitting spinning process.
References [1] Zhao G.Y., Zhang R.Y., Guo Z.H., Tu S.J., Wang E.L., Feng Z.R.: Hot Working Tech.
Guo, E.L.
Davidson et al. [5] found the depth of cut, the feed, the starting dimension of the preform, the starting heat treatment condition of the preform and the speed of the mandrel had significant role in the quality of the final product.
To analyze the forming characteristics and laws of hot splitting spinning process of magnesium alloy AZ31, Yang et al. [6] established a 3D elastic–plastic FE model of hot splitting spinning process.
References [1] Zhao G.Y., Zhang R.Y., Guo Z.H., Tu S.J., Wang E.L., Feng Z.R.: Hot Working Tech.
Guo, E.L.
Online since: January 2013
Authors: Je Sik Park, Jae Jun Park, Kyung Jung Kwon, Han Su Kim, Churl Kyoung Lee
El Abedin et al. reported that the ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([BMP]Tf2N) with dissolved SiCl4 as a silicon source was a good candidate as an electrolyte for silicon electrodeposition [5].
Sakaebe et al. [12] concluded that the reduction behaviors in the case of silicon deposition would be dependent on the electrode materials.
This phenomenon is similar to the observation of Egashira et al. [13].
Bechelany et al.: Thin Solid Films 520 (2012), p. 1895
El Abedin, N.
Sakaebe et al. [12] concluded that the reduction behaviors in the case of silicon deposition would be dependent on the electrode materials.
This phenomenon is similar to the observation of Egashira et al. [13].
Bechelany et al.: Thin Solid Films 520 (2012), p. 1895
El Abedin, N.