Search Results - "., O.A. Ojo"

Numerical modeling of microstructure evolution during laser additive manufacturing of a nickel-based superalloy by Nie, Pulin, Ojo, O.A., Li, Zhuguo

“…A multi-scale model that combines the finite element method and stochastic analysis is developed to simulate the evolution of the microstructure of an…”
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Influence of solute-source composition on composition-dependent interdiffusion coefficient by Olaye, O., Ojo, O.A.

“…•D(C) in the literature does not consider the effect of DIS generation/relaxation that accompanies diffusion.•Calculations based on DIS are used to…”
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Disparity in the concentration dependence of interdiffusion coefficient under 1D and 2D diffusion interface migration by Olaye, O., Ojo, O.A.

“…•Prior to this study D(C) was assumed to be a geometry independent material constant.•This assumption is investigated using 1D and 2D diffusion interface…”
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Time variation of concentration-dependent interdiffusion coefficient obtained by numerical simulation analysis by Olaye, O., Ojo, O.A.

“…A newly developed numerical diffusion model that conserves solute is coupled with a recently reported forward simulation technique to address the key flaws in…”
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Potential of producing solar grade silicon nanoparticles from selected agro-wastes: A review by Adebisi, J.A., Agunsoye, J.O., Bello, S.A., Ahmed, I.I., Ojo, O.A., Hassan, S.B.

“…•Nigeria electricity generation is below the actual demand estimated at 10,000MW.•Total energy consumption is fossil fuels based with greenhouse gases…”
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Neuroprotective effect of Lannea egregia Alkaloid-rich leaf extracts in streptozotocin-induced diabetic rats by Ajiboye, B.O., Ekundayo, B.E., Salami, A.W., Osukoya, A.O., Komolafe, K., Gaur, S., Oyinloye, B.E., Jeje, T.O., Ojo, O.A.

“…Studies suggest that medicinal plant extracts can help reduce the neuron degeneration associated with diabetes. In this study, the neuroprotective effect of…”
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Effect of heat input on heat affected zone cracking in laser welded ATI Allvac 718Plus superalloy by Idowu, O.A., Ojo, O.A., Chaturvedi, M.C.

“…The heat affected zones (HAZs) of low and high heat input laser welds of a newly developed superalloy, ATI Allvac 718Plus, were studied. Low heat input welds…”
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Alkaloid-rich extract of Lannea egregia leaf protect against cardiomyopathy in streptozotocin-induced type 2 diabetic rats by Ajiboye, B.O., Folorunso, I.M., Akinfemiwa, K.I., Oyinloye, B.E., Lawal, O.E., Ojo, O.A., Ezema, M., Ajuwon, O.R., Ardekani, E.A.

“…Lannea egregia leaf has been used locally for the management of diseases with limited scientific support. Hence, the cardiomyopathy protective ability of an…”
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Contribution of constitutional liquation of gamma prime precipitate to weld HAZ cracking of cast Inconel 738 superalloy by Ojo, O.A., Richards, N.L., Chaturvedi, M.C.

“…The weld heat affected zone (HAZ) cracking in cast Inconel 738 superalloy has been examined. Constitutional liquation of the main strengthening phase of the…”
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The effectiveness of information and communication technologies (ICTs) in teaching and learning in high schools in Eastern Cape Province by Adu, E.O., Ojo, O.A.

“…The effectiveness of the use of information and communication technologies (ICTs) in teaching and learning is germane to the recent educational innovations in…”
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Antioxidant and the ameliorating effect of Allium cepa (Onion) fortified feed against potassium bromate induced oxidative damage in Wistar rats by Nwonuma, C.O., Osemwegie, O.O., Alejolowo, O.O., Irokanulo, E.O., Olaniran, A.F., Fadugba, D.O., Opaleke, D.O., Ojo, O.A.

“…•Allium cepa fortified feed protected against oxidative damage by potassium bromate.•Malondialdehyde (MDA) levels in the hepato-renal declined significantly in…”
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On post-weld heat treatment cracking in tig welded superalloy ATI 718Plus by Asala, G., Ojo, O.A.

“…The susceptibility of heat affected zone (HAZ) to cracking in Tungsten Inert Gas (TIG) welded Allvac 718Plus superalloy during post-weld heat treatment (PWHT)…”
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Variation in diffusion-induced solidification rate of liquated Ni–Cr–B insert during TLP bonding of Waspaloy superalloy by Tokoro, K., Wikstrom, N.P., Ojo, O.A., Chaturvedi, M.C.

“…A microstructural study was performed on transient liquid phase (TLP) bonded Waspaloy superalloy with a Ni–Cr–B filler. The applicability of a diffusion model…”
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High temperature diffusion induced liquid phase joining of a heat resistant alloy by Wikstrom, N.P., Egbewande, A.T., Ojo, O.A.

“…Transient liquid phase bonding (TLP) of a nickel base superalloy, Waspaloy, was performed to study the influence of holding time and temperature on the joint…”
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Improvement in Laser Weldability of INCONEL 738 Superalloy through Microstructural Modification by Egbewande, A.T., Zhang, H.R., Sidhu, R.K., Ojo, O.A.

“…Microstructural study of laser-beam-welded IN 738 superalloy was carefully performed to better understand the causes of heat-affected zone (HAZ) cracking and…”
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Heat affected zone liquation cracking in electron beam welded third generation nickel base superalloys by Ojo, O.A., Wang, Y.L., Chaturvedi, M.C.

“…The weldability of directionally solidified nickel base superalloy TMS-75 and TMS-75+C was investigated by autogenous bead-on-plate electron beam welding. The…”
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Laser beam weld-metal microstructure in a yttrium modified directionally solidified Ni3Al-base alloy by Ding, R.G., Ojo, O.A., Chaturvedi, M.C.

“…The microstructure of laser beam weld-metal of an yttrium doped directionally solidified alloy IC 6A, with chemical composition Ni-16Al-8.5Mo-0.12B-0.05C-0.03Y…”
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In vitro assessment of fungicidal activity of Ageratum conyzoides and Cybopogon flexuosus weed extracts against some phytopathogenic fungi associated with fruit rot of water melon (Citrullus lunatus (Thunb.)) by Ojo, O.A, Oladipo, S.O, Odelade, K.A

“…The ethanolic extracts of Cybopogon flexuosus and Ageratum conyzoides were tested at concentrations of 20, 40, 60, 80, 100 and 120 mg/ml for their in vitro…”
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Corrosion behavior of wire arc additive manufactured Inconel 718 superalloy by Zhang, L.N., Ojo, O.A.

“…The corrosion behavior of Inconel 718 (IN718) superalloy fabricated using wire-arc additive manufacturing (WAAM) and post-deposition heat treatment is…”
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Experimental verification of a common assumption in the use of concentration-dependent interdiffusion coefficient by Afolabi, S.I., Ojo, O.A.

“…•Interdiffusion coefficient, D(C), is used to predict and analyze diffusion.•A general view that D(C) at any temperature and time can predict diffusion.•D(C)…”
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