Department of Mechanical Engineering

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Author: search.filters.author.Adeolu Adesoji AdediranEnd date: 2019

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    Experimental data on mechanical properties evaluation of medium carbon steel quenched in different waste media
    (Elsevier, 2018-09-05) T.S. Olabamiji; C.O. Osueke; B.T. Ogunsemi; Adekunle Akanni Adeleke; D.C. Uguru-Okorie; Adeolu Adesoji Adediran; Peter Pelumi Ikubanni; O.O. Agboola
    Several wastes can be instrumental in the improvement of the mechanical properties of medium carbon steel when quenched. The quenching media employed such as coconut water (CW), pap water (PW) and spent engine oil (SPE) have been largely considered as wastes. The data in this article are related to the research article titled "Mechanical Properties Improvement Evaluation of Medium Carbon Steels Quenched in Different Media" (Ikubanni et al., 2017) [1]. The article provides information on the mechanical properties evaluation of medium carbon steel quenched in different media. Twenty-seven (27) samples of medium carbon steel samples were heated to temperatures of 730 °C, 760 °C and 790 °C and soaked for 30, 45 and 60 min respectively. The test results recorded include hardness value, yield strength (YS) and the ultimate tensile strength (UTS) for each of the samples at different heating temperatures and soaking time for the different quenching media.
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    Physico-Mechanical Properties of Particleboards Produced from Locally Sourced Materials
    (Trans Tech Publications, 2018-11-08) Peter Pelumi Ikubanni; Adekunle Akanni Adeleke; Adeolu Adesoji Adediran; O.O. Agboola
    In this study, particleboard was produced from the blend of sawdust and rice husk with the inclusion of metallic chips and adhesives. Urea formaldehyde and gelatinous starch were used as adhesives. Particleboards (10 mm thickness) were made from varying weight percentage ratio of saw dust and rice husk using pressure in the neighbourhood of 3 N/mm2 . The particleboard was tested to determine the density, modulus of rupture (MOR), modulus of elasticity (MOE) and internal bonding strength (IBS). The density of the particleboards developed varies from 762.86 to 801.60 kg/m3 . The moisture content of the samples varied between 9.22% and 9.98%. The MOR, MOE and IB values varied between 5.08 MPa and 26.08 MPa; 75.38 MPa and 412.4 MPa; and 0.013 MPa to 0.07 MPa, respectively. Composite samples C, E and H values for MOR, MOE and IBS gave significant results which met with the EN, ANSI A 208.1 and USDA standards. Hence, the admixture of rice husk and sawdust together with UF adhesive will be suitable in producing particleboard that could be useful for indoor and outdoor purposes.
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    Preliminary Characterisation of Iron Ores for Steel Making Processes
    (Elsevier, 2019-08-14) Jamiu Kolawole Odusote; Adekunle Akanni Adeleke; Bankole Sheriffdeen Ameenullahi; Adeolu Adesoji Adediran
    Iron ore is one of the major raw materials required to produce iron and steel products. However, there is a need to characterise the iron ore to determine their grade based on the iron and other mineral contents before usage. In this study, iron ores from Jaruwa and Agbaja deposits were characterised using X-ray diffractometer, X-ray florescence spectrometer, scanning electron microscope and petrographic microscope. Phase identification and chemical compositions revealed that the iron ore content of the Jaruwa deposit is higher (68%) than that of the Agbaja deposit (53%). The phosphorus contents of both deposits are higher than 0.04% recommended for high grade iron ore. Iron ore from Agbaja deposit contains more silica and alumina than Jaruwa deposit. A spherical ooids (concentric layer) that shows partial and whole replacement by hematite (iron precipitates around a nucleus) was observed on the petrograph of Agbaja ore as against the more dark areas which signified more iron contents in Jaruwa iron ore. Based on the findings, Jaruwa deposit can be classified as high grade hematite iron ore while Agbaja deposit can be classified as lean grade, although both can serve as feedstock for production of iron through direct reduction route.