Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Wafaa A. Ghanem"'
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 65, Iss No 2, Pp 639-651 (2020)
Evaluation of inorganic and organic compounds as corrosion inhibitors of Cu-Zn alloys in H2SO4 and HNO3 solutions was studied using potentiodynamic and impedance spectroscopy along with scanning electron microscope (SEM) and energy dispersive X-Ray a
Externí odkaz:
https://doaj.org/article/1145b88a0371485a861be51bf8bd21ef
Autor:
Lamiaa Z. Mohamed, Wafaa A. Ghanem, Omayma A. El kady, Mohamed.M. Lotfy, Hafiz A. Ahmed, Fawzi A. Elrefaie
Publikováno v:
Ain Shams Engineering Journal, Vol 9, Iss 4, Pp 2993-3000 (2018)
The oxidation kinetics of porous Ni-12 wt%Cr alloy with 23.7% porosity was investigated for 100 h at 1000 °C in air. The phases forming the oxide scale were determined by using X-ray diffractometry. The topography of the surface of the oxide scale a
Externí odkaz:
https://doaj.org/article/9f57aa30fa534c739c4db929a7d14c06
Autor:
Lamiaa Z. Mohamed, Wafaa A. Ghanem, Omayma A. El Kady, Mohamed M. Lotfy, Hafiz A. Ahmed, Fawzi A. Elrefaie
Publikováno v:
Journal of Advanced Research, Vol 8, Iss 6, Pp 717-729 (2017)
The oxidation behavior of two types of inhomogeneous nickel was investigated in air at 1273 K for a total oxidation time of 100 h. The two types were porous sintered-nickel and microstructurally inhomogeneous cast-nickel. The porous-nickel samples we
Externí odkaz:
https://doaj.org/article/3e9e11b6f7d646c4941e7c3bfac1c40f
Publikováno v:
Key Engineering Materials. 835:223-228
In this work, the corrosion behavior of different grades of cast iron in 3.5% and 5% of NaClsolution was evaluated. The samples used in this work are; Grey cast iron (GI), ductile cast iron(DI), austempered ductile cast iron (ADI), intercritically au
Autor:
Fawzi A. Elrefaie, Wafaa A. Ghanem, Hafiz A. Ahmed, Lamiaa Z. Mohamed, Mohamed Lotfy, Omayma A. El Kady
Publikováno v:
Ain Shams Engineering Journal, Vol 9, Iss 4, Pp 2993-3000 (2018)
The oxidation kinetics of porous Ni-12 wt%Cr alloy with 23.7% porosity was investigated for 100 h at 1000 °C in air. The phases forming the oxide scale were determined by using X-ray diffractometry. The topography of the surface of the oxide scale a
Publikováno v:
Key Engineering Materials. 786:174-194
The aim of this article describes the application of green tea aqueous extract as an eco-friendly corrosion inhibitor for two Cu-Ni alloys in 3.5% NaCl solution. This ability has been studied by using electrochemical techniques (i.e. PDP, CT and EIS)
Autor:
Wafaa A. Ghanem, Mohamed Lotfy, Lamiaa Z. Mohamed, Hafiz A. Ahmed, Omayma A. El Kady, Fawzi A. Elrefaie
Publikováno v:
Key Engineering Materials. 786:37-43
The oxidation behavior of porous nickel low-chromium alloys containing up to 1 wt%Cr oxidized in air at 1273K for 100 h was investigated. Porous-duplex scale was formed on the 1 wt%Cr pellets while single oxide layers were obtained on the 0.25 and 0.
Autor:
Hafiz A. Ahmed, Fawzi A. Elrefaie, Mohamed Lotfy, Omayma A. El Kady, Lamiaa Z. Mohamed, Wafaa A. Ghanem
Publikováno v:
Journal of Advanced Research
Journal of Advanced Research, Vol 8, Iss 6, Pp 717-729 (2017)
Journal of Advanced Research, Vol 8, Iss 6, Pp 717-729 (2017)
Graphical abstract
The oxidation behavior of two types of inhomogeneous nickel was investigated in air at 1273 K for a total oxidation time of 100 h. The two types were porous sintered-nickel and microstructurally inhomogeneous cast-nickel. The
The oxidation behavior of two types of inhomogeneous nickel was investigated in air at 1273 K for a total oxidation time of 100 h. The two types were porous sintered-nickel and microstructurally inhomogeneous cast-nickel. The
Publikováno v:
Egyptian Journal of Chemistry.
Corrosion inhibition of two Schiff base complexes were examined for mild steel in 1M HCl solution. These two Schiff base complexes, Cd(II) and UO2(II) were synthesized through the reaction of CdCl2.H2O and UO2(NO3)2.6H2O with the Schiff base ligand N
Publikováno v:
Materials Research Express. 7:016567
The objective of this research is to investigate the electrochemical features of aluminum alloy owing to the deposition of SiO2 or TiO2 nanoparticles in an anodic aluminum oxide film (AAO) via electrophoretic deposition (EPD). The modified oxide laye