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Online since: April 2015
Authors: Tao Tao Ai, Xiao Ming Feng, Miao Miao Ruan, Ning Yu, Kui Hua
At 660 °C, Al melted and reacted with Ti to form TiAl3.
The mass radio of Ti, Al, TiC was 1: 1.2: 2.
The existence of Al2O3 is due to Al oxidized during ball milling process.
At 660 °C, Al melted.
El-Raghy, Synthesis and characterization of a remarkable ceramic: Ti3SiC2, J.
The mass radio of Ti, Al, TiC was 1: 1.2: 2.
The existence of Al2O3 is due to Al oxidized during ball milling process.
At 660 °C, Al melted.
El-Raghy, Synthesis and characterization of a remarkable ceramic: Ti3SiC2, J.
Online since: January 2005
Authors: Amer E. Amer, S.A. EL-Ghazaly, Y.S. Shash, S. Weiss
INFLUENCE OF MICROSTRUCTURAL CHANGES AND GRAIN
BOUNDARY PRECIPITATION ON THE BEHAVIOR OF
25Ni-15Cr-2Ti SUPERALLOY DURING HIGH
TEMPERATURE CREEP
1,A
A.E.Amer,
2,B
S.A.EL-Ghazaly,
3,C
Y.S.Shash and
4,DS.Weiss
(1&2)
Central metallurgical R&D institute (CMRDI) Cairo.Egypt.P.O.87Helwan
Cairo University ,Egypt (4) Werkstofftechnik , Duisburg-Essen University ,Germany aaeid958@yahoo.com belghazaly@acces.com.eg Keywords: precipitation hardenable austenitic stainless steel, laser beam, douple aging ,creep, microstructural changes, stacking fault energy, dislocation interaction, γ/(Ni3Ti, Al), M23C6 and MC carbides Abstract.
In all structures, hardening mechanisms are created in them by douple aging( 760 oC,24h,FC-705oC,16h,AC) in which intermetallic Ni3(Al-Ti) precipitates along the grain boundaries and inside the grains of austenite.
Fig (5): TEM Micrograph SFE density a) BM b) LBS Fig (6): TEM Micrograph distribution of precipitates of γ/ and other carbides a) BM b) LBS TEM thin foils investigation revealed the variation happened in grain boundary morphology and distribution of precipitates of γ /(Ni3Ti, Al) and other carbides Fig(7-a,b).
Cairo University ,Egypt (4) Werkstofftechnik , Duisburg-Essen University ,Germany aaeid958@yahoo.com belghazaly@acces.com.eg Keywords: precipitation hardenable austenitic stainless steel, laser beam, douple aging ,creep, microstructural changes, stacking fault energy, dislocation interaction, γ/(Ni3Ti, Al), M23C6 and MC carbides Abstract.
In all structures, hardening mechanisms are created in them by douple aging( 760 oC,24h,FC-705oC,16h,AC) in which intermetallic Ni3(Al-Ti) precipitates along the grain boundaries and inside the grains of austenite.
Fig (5): TEM Micrograph SFE density a) BM b) LBS Fig (6): TEM Micrograph distribution of precipitates of γ/ and other carbides a) BM b) LBS TEM thin foils investigation revealed the variation happened in grain boundary morphology and distribution of precipitates of γ /(Ni3Ti, Al) and other carbides Fig(7-a,b).
Online since: October 2025
Authors: Ihor Bordun, Nazar Nahurskyi, Anatoliy Borysiuk, Myroslav Malovanyy
El Nemr, Health and Environmental Impacts of Dyes: Mini Review, American Journal of Environmental Science and Engineering. 1 (2017) 64–67
El Bachiri, A.
El Harfi, Dyes: Classification, Pollution, and Environmental Effects, in: S.S.
El Nemr, Advanced Oxidation Processes for Textile Wastewater Treatment, International Journal of Photochemistry and Photobiology. 2 (2017) 85–93
Al-Anzi, M.
El Bachiri, A.
El Harfi, Dyes: Classification, Pollution, and Environmental Effects, in: S.S.
El Nemr, Advanced Oxidation Processes for Textile Wastewater Treatment, International Journal of Photochemistry and Photobiology. 2 (2017) 85–93
Al-Anzi, M.
Online since: December 2009
Authors: Shen Yung Lin, C.C. Tang, J.C. Shih, S.S. Chi
Neo el al. [1] explored the feasibility of using PCBN tools for direct ultra-precision
machining of alloy steel.
Kato et al. [6] explored the improvement of processing efficiency in the high-speed milling of gray cast iron.
El-wardany et al. [12] dealt with an experimental and analytical investigation into the different factors which influence the temperature distribution on ceramic tool rake face during machining of difficult-to-cut materials.
Sutter et al
El-Wardany, E.
Kato et al. [6] explored the improvement of processing efficiency in the high-speed milling of gray cast iron.
El-wardany et al. [12] dealt with an experimental and analytical investigation into the different factors which influence the temperature distribution on ceramic tool rake face during machining of difficult-to-cut materials.
Sutter et al
El-Wardany, E.
Online since: September 2013
Authors: An Guo Huang, Lu Yang, Qing Hua Wang, Jie Li, Yuan Liu
EL.(%)
Al
Mg
Si
1-1
Top
99.452
0.000
0.548
1-2
Bottom
98.086
0.010
1.904
2-1
Top
99.311
0.000
0.689
2-2
Bottom
97.009
0.002
2.989
3-1
Top
98.010
0.009
1.981
3-2
Bottom
92.858
0.040
7.102
4-1
Top
99.473
0.000
0.527
4-2
Bottom
99.274
0.000
0.726
Consequently, the content of magnesium in the seam is very thimbleful, even zero at some locations.
EL.(%) Al Mg Si Ti 1-1 Top 91.295 1.314 7.349 0.042 1-2 Bottom 83.931 2.644 13.377 0.048 2-1 Top 91.079 1.601 7.250 0.070 2-2 Bottom 84.933 2.843 12.067 0.158 Comparing with the weld with pre-set powders, the content of magnesium in the weld pool substantially increases.
Fig 3 Structures in the weld seam 800× According to the Al-Mg-Si phase diagram[12], the series of Al-Mg-Si alloys rime as follows.is separated out at first.
The black strip structure among is the eutectic of Al-Si.
Pre-precipitate clusters and precipitation processes in Al-Mg-Si alloys [J].
EL.(%) Al Mg Si Ti 1-1 Top 91.295 1.314 7.349 0.042 1-2 Bottom 83.931 2.644 13.377 0.048 2-1 Top 91.079 1.601 7.250 0.070 2-2 Bottom 84.933 2.843 12.067 0.158 Comparing with the weld with pre-set powders, the content of magnesium in the weld pool substantially increases.
Fig 3 Structures in the weld seam 800× According to the Al-Mg-Si phase diagram[12], the series of Al-Mg-Si alloys rime as follows.is separated out at first.
The black strip structure among is the eutectic of Al-Si.
Pre-precipitate clusters and precipitation processes in Al-Mg-Si alloys [J].
Online since: September 2003
Authors: Yung Jen Lin, Tsung-Hsien Shen
The formation of Al3Ni intermetallic is consistent with prediction from Al-Ni binary phase diagram,
which indicates the co-existence of Al(Ni) and Al3Ni when Al rich Al-Ni alloy is cooled from
1200°C.
Al melt sample compact Model for infiltration.
From the Al rich region of the Al-Ni phase diagram, Al-Ni forms liquid solution at temperatures 6061 Al alloy Al2O3 matrix Ni Al3Ni + Al2O3 � Al(Ni) melt + Al2O3 Al(Ni) melt Al(Ni) + Al3Ni unfiltrated region (Al2O3 + pores) Al(Ni) + Al2O3( Al melt Al(Ni) melt that we used for infiltration.
Thus, Al3Ni is formed in Al(Ni) melt.
El-Mahallawy: J. of Mater.
Al melt sample compact Model for infiltration.
From the Al rich region of the Al-Ni phase diagram, Al-Ni forms liquid solution at temperatures 6061 Al alloy Al2O3 matrix Ni Al3Ni + Al2O3 � Al(Ni) melt + Al2O3 Al(Ni) melt Al(Ni) + Al3Ni unfiltrated region (Al2O3 + pores) Al(Ni) + Al2O3( Al melt Al(Ni) melt that we used for infiltration.
Thus, Al3Ni is formed in Al(Ni) melt.
El-Mahallawy: J. of Mater.
Online since: June 2011
Authors: J. Martin Herrera-Ramírez, Mario Miki-Yoshida, Ivanovich Estrada-Guel, Roberto Martínez-Sánchez, J. I. Barajas-Villaruel, Caleb Carreño-Gallardo, J.L. Cardoso
Mechanical Study on Al-based Composites Synthesized by Mechanical Milling and Hot Extrusion
I.
Al based composite synthesis: composites were prepared by mixing Al powder with prepared MG particles in concentration of 0.0, 0.5 and 1.0 wt.% of Cu-MG with the nomenclature showed in Table 1.
Mechanical results are showed in Fig. 4a, it is clear that milled-Al samples present a better performance on stress-strain curves compared with un-milled Al, due mainly to work hardening [[] H.
Fogagnolo et al. [[] J.B.
El Borady: Comp.
Al based composite synthesis: composites were prepared by mixing Al powder with prepared MG particles in concentration of 0.0, 0.5 and 1.0 wt.% of Cu-MG with the nomenclature showed in Table 1.
Mechanical results are showed in Fig. 4a, it is clear that milled-Al samples present a better performance on stress-strain curves compared with un-milled Al, due mainly to work hardening [[] H.
Fogagnolo et al. [[] J.B.
El Borady: Comp.
Online since: December 2023
Authors: Worawat Meevasana, Joko Utomo, Markus Diantoro, Hari Wisodo, Ishmah Luthfiyah
These results are consistent with research conducted by Luthfiyah et al. [33].
Wang et al., because of its capacity to bind to the electrolyte and its high electron mobility [18,30].
Ser. 1093 [12] Masrul M Z, Suprayogi T, Diantoro M, Fuad A, Latifah E and Hidayat A 2019 The Effect of Light Irradiation on Performance of Photo-Supercapacitor of FTO/TiO 2 -ZnO-β Carotene-Quercetin/Carbon/Al/PVDF-BaTiO 3 /Al IOP Conf.
Eng. 515 [18] Demir M, Tessema T D, Farghaly A A, Nyankson E, Saraswat S K, Aksoy B, Islamoglu T, Collinson M M, El-Kaderi H M and Gupta R B 2018 Lignin-derived heteroatom-doped porous carbons for supercapacitor and CO2 capture applications Int.
Ser. 1595 [34] Erradi A, Touhtouh S, El Fallah J, El Ballouti A and Hajjaji A 2021 Performance evaluation of supercapacitors based on activated carbons and investigation of the impact of aging on the electrodes J.
Wang et al., because of its capacity to bind to the electrolyte and its high electron mobility [18,30].
Ser. 1093 [12] Masrul M Z, Suprayogi T, Diantoro M, Fuad A, Latifah E and Hidayat A 2019 The Effect of Light Irradiation on Performance of Photo-Supercapacitor of FTO/TiO 2 -ZnO-β Carotene-Quercetin/Carbon/Al/PVDF-BaTiO 3 /Al IOP Conf.
Eng. 515 [18] Demir M, Tessema T D, Farghaly A A, Nyankson E, Saraswat S K, Aksoy B, Islamoglu T, Collinson M M, El-Kaderi H M and Gupta R B 2018 Lignin-derived heteroatom-doped porous carbons for supercapacitor and CO2 capture applications Int.
Ser. 1595 [34] Erradi A, Touhtouh S, El Fallah J, El Ballouti A and Hajjaji A 2021 Performance evaluation of supercapacitors based on activated carbons and investigation of the impact of aging on the electrodes J.