Agha Inya Ndukwe

@futo.edu.ng

Department of Materials & Metallurgical Engineering, School of Engineering and Engineering Technology
Federal University of Technology, Owerri, Nigeria

Agha Inya Ndukwe


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https://researchid.co/aghandukwe

RESEARCH INTERESTS

Corrosion inhibition, Composites, Casting
20

Scopus Publications

Scopus Publications

  • Strengthening of Agbani clay with granite and characterization of its properties and toxicity for applications in building services
    Chijioke Peter Egole, Onwudiwe Ugochukwu Chinonso, Chukwudike Onuoha, Gaius Chukwuka Nzebuka, Justus Uchenna Anaele, et al.
    Environmental Science and Pollution Research, 2026
  • Investigation of inhibitive property of hydroxypropyl methylcellulose on acid corrosion of copper using experimental and computational simulation techniques
    Innocent O Arukalam, Ikechukwu N Uzochukwu, Remy Uche, Daniel I Udunwa, Chijioke P Egole, et al.
    Bulletin of Materials Science, 2025
  • DEVELOPMENT OF HIGH-DENSITYPOLYETHYLENE-MATRIX COMPOSITES REINFORCED WITH SILICA AND KAOLIN
    Chibueze Ohia, James Ovri, Agha Ndukwe, Chukwudike Onuoha
    Acta Periodica Technologica, 2025
    The mechanical properties of high-density polyethylene (HDPE) composites reinforced with silica and kaolin fillers were studied. Waste yogurt containers were cleaned and processed into polymer matrices and reinforced with varying concentrations of kaolin and silica (0 to 30 wt.%). Fillers were sieved through a mesh of 150 micrometer. Composites were produced using two-ball roll mills and compression moulding technique. Fourier Transform Infrared (FTIR) spectroscopy was used for fillers characterization. FTIR revealed presence of diverse functional groups for the fillers. The fillers' various functional groups, such as hydroxyl (O-H), carbon-carbon (C=C, C?C), carbon-nitrogen (C?N), and carbon-chlorine (C-Cl) groups, were identified by FTIR analysis. Uneven filler dispersion was seen in SEM micrographs; compositions including 6 wt.%, 12 wt.%, and 18 wt.% had better mechanical qualities and a more uniform distribution, but compositions containing 24 wt.% and 30% of filler showed notable agglomeration. Scanning Electron Microscopy (SEM) revealed morphology of the composites. Mechanical testing showed maximum tensile strength of 30.93 MPa and elastic modulus of 297.75 MPa with 12 wt.% filler content. Flexural strength peaked at 77.81 MPa for 18 wt.% filler loading. The maximum hardness value of 63.10Hv was recorded for 24 wt.% filler. Elongation at break and Impact strength gradually decreased with increasing filler content. SEM showed unequal distribution of filler within the HDPE matrix. 6 wt.%, 12 wt.% and 18 wt.% fillers reinforcement produced uniformly dispersed composites with improved properties. 24 wt.% and 30 wt.% filler composites showed better hardness values. Multiple Linear Regression was more accurate in predicting the impact strengths of the examined composites in comparison with predictions by the Artificial Neural Network (ANN). At 12 wt.% filler content, tensile strength increased 17.5% to 30.93 MPa, while flexural strength peaked at 77.81 MPa (an 11.7% improvement) at 18 wt.% loading. With an increase in filler content, however, impact strength dropped dramatically from 0.273 to 0.159 J/mm2, suggesting lower toughness. Filler agglomeration at greater concentrations was discovered by SEM analysis, which accounted for the strength decrease. These composites exhibit promise for uses such as roof ceilings and floor tiles, where high flexural strength is preferred above impact resistance. This research developed composites with improved mechanical properties produced using High density polyethylene waste yoghurt cans reinforced with silica and kaolin for possible use as floor tiles and roofing ceilings
  • CORROSION-PROTECTIVE COATINGS: AN OVERVIEW OF SELF-HEALING AND HYBRID COATING-ADVANCEMENTS
    Agha Ndukwe, John Anumudu, Chima Ugwuegbu, Chukwudike Onuoha, Placid Nnajih, et al.
    Acta Periodica Technologica, 2025
    The review of earlier research on hybrid and self-healing coatings to increase metal corrosion resistance is the focus of this work. Previous studies from 2015 to 2023 were reviewed. Self-healing coatings, which may halt their own degeneration, have been shown to extend the life of metal protective coatings. Earlier reports reveal that these coatings functioned through several processes, involving physical ones such as chemical interactions or polymer diffusion that produced therapeutic compounds. While extrinsic self-healing coatings were reported to rely on encapsulated healing agents, intrinsic self-healing coatings were reported to use reversible chemical bonds inside the polymer matrix. The hybrid coatings, which are made up of multiple coating techniques in a complementary manner, have shown improved resistance to metal corrosion. The use of advanced hybrid coating and self-healing technologies offered a practical means of reducing metal corrosion and extending the life of metallic structures.
  • Corrosion control in metals: A review on sustainable approach using nanotechnology
    Agha Inya Ndukwe, Benjamin Nwadirichi, Chukwuma Okolo, Mmesomachukwu Tom-Okoro, Rasaq Medupin, et al.
    Materials Protection, 2025
    This study concerns the review of previous studies that made use of nanotechnology to inhibit the corrosion of metals/alloys in one part. The other consideration probed the long-term stability and durability of the applied nanotechnology for corrosion control in a variety of environmental conditions, as well as the optimization of nanoparticle dispersion and integration for optimal efficiency—two crucial but sometimes disregarded features of nano coatings for corrosion prevention. Although there had been some progress in preventing corrosion, consistent dispersion of nanoparticles and long-term efficacy were still unattainable with nano coatings. Key findings from the review of the literature covering the years 2017–2023 indicated an increasing amount of research on different materials and techniques to improve corrosion resistance, from multilayered nanocomposites to superhydrophobic surfaces and innovative composite coatings. The versatility and effectiveness of nanoparticle-based coatings in corrosion management were highlighted by this research, which provided specialized solutions for various substrates and operating environments. Furthermore, studies on the stability and durability of nanocoatings on metals have shown that there are viable ways to extend their useful life over time, such as the use of coatings that are nanolaminated and the active release of corrosion inhibitors. In addition to closing important information gaps, this review offered guidance for the future production of reliable and durable corrosion protection devices.
  • DAMPING AND VIBRATION CONTROL IN MODERN MANUFACTURING MATERIALS USING SHAPE MEMORY ALLOYS: A REVIEW
    Academic Journal of Manufacturing Engineering, 2024
  • Corrosion inhibition of carbon steel by eucalyptus leaves in acidic media: An overview
    Agha Inya Ndukwe
    Materials Protection, 2024
    This paper concerns the overview of previous studies on the corrosion and inhibition of carbon steel that is allowed to degrade in a corrosive medium by the extract of the eucalyptus plant, with an emphasis on the extract's adsorption behaviour. Many researchers have largely employed eucalyptus plant bark, oil, and leaf extracts to prevent the corrosion of mild steel in acidic environments under various temperature settings. According to the results, when the bark extract of the eucalyptus plant was added to HCl (5%) at a concentration of 900 ppm, the inhibitor's maximum efficiency was 98.2 %. The leaf extract, on the other hand, had the maximum inhibitory efficacy of 93.09 % at 600 mg/L extract concentration in the H2SO4 (0.5 M) medium. The extracts' potency was shown to diminish with increasing temperature. The mechanism for eucalyptus extract's protection of carbon steel from corrosion in diverse corrosive situations was largely associated with the adsorption of the extract's inhibitive components on the steel's surface to reduce the interaction between the metal and the corrosive surroundings. The majority of the reported inhibitive behaviour of the eucalyptus extract was consistent with the Langmuir adsorption isotherm model.
  • Overview of corrosion behaviour of ceramic materials in molten salt environments
    Agha Inya Ndukwe, Chukwuma Daniel Okolo, Benjamin Uchenna Nwadirichi
    Materials Protection, 2024
    This study reviewed previous studies between the years 2015 and 2021 on how ceramic materials degraded in the presence of molten salt environments. The processes of corrosion resistance of various ceramic compositions subjected to various molten salt compositions and temperatures were also scrutinized. The results offer important new insights into the variables affecting ceramics' corrosion behaviour and the production of corrosion products. The reported result reveals that the ceramic material with the composition (Sm0.5Sc0.5)2Zr2O7 performed better than that of Sm2Zr2O7 in terms of hot corrosion resistance in molten salt (V2O5 + Na2SO4). It has also been reported that corrosion behaviour is influenced by particle size. Notably, zirconia (n-YSZ) with nanoscale grain sizes was more susceptible to hot corrosion, which was explained by increased specific surface areas. On the other hand, sintering and additives have been found to enhance corrosion resistance. The Y-Y2Si2O7 ceramic's resistance to corrosion in (V2O5 + Na2SO4) molten salt was enhanced by the addition of alumina. The results of these investigations help us understand how corrosion works and what influences ceramic materials' susceptibility to deterioration in molten salt media. This information can direct the creation of more corrosive-resistant ceramic materials for use in high-temperature environments or molten salt-based energy systems, among other corrosive uses.
  • PREDICTION OF HARDNESS OF PALM INTER-FRUITLET MEMBRANE REINFORCED HIGH-DENSITY POLYETHYLENE-WASTE (HDPEw) COMPOSITES
    Acta Periodica Technologica, 2024
  • RECENT FINDINGS ON MECHANICAL BEHAVIOUR OF STIR CAST ALUMINIUM ALLOY-MATRIX COMPOSITES: AN OVERVIEW
    Agha Ndukwe
    Acta Periodica Technologica, 2023
    This study examined the previous research on the mechanical properties of reinforced composites of aluminium-matrix, manufactured by stir casting. Stir casting has been reported as the most economical fabrication method currently in use for producing Aluminum Matrix Composites because of its accessibility, portability, adaptability to be utilized for large-scale manufacture, and easy operation of the application to conventional shape casting foundry procedures. Apart from the minority report that recorded a reduction in ductility, yield strength, ultimate tensile strength, and modulus of elasticity but with an increase in hardness of the SiC particulate reinforced aluminium matrix composites following the increase in reinforcing material, the majority of work has shown that the mechanical properties increase with the increase in the addition of the reinforcing material. Reinforcing materials like silicon carbide, tungsten carbide, alumina, boron carbide, and multi-walled carbon nanotubes have been used in various compositions to manufacture aluminium-matrix composites. The highest reported ultimate tensile strength of 489 MPa was obtained after stir casting 10 vol% of SiC - aluminium matrix composite. The maximum tensile strength of 401 MPa was attained with 20% B4C - Al-matrix composite. Various uses of metal-matrix composites have been identified in the making of hypersonic aircraft, sporting equipment, and automobile engine parts.
  • NOVEL COMPOSITES FOR MANUFACTURING HIGH-STRENGTH AND LIGHTWEIGHT MATERIALS: A REVIEW
    Academic Journal of Manufacturing Engineering, 2023
  • CORROSION OF DUPLEX STAINLESS-STEEL WELDMENTS: A REVIEW OF RECENT DEVELOPMENTS
    Structural Integrity and Life, 2023
  • Recent findings on corrosion of ferritic stainless steel weldments: A review
    Materials Protection, 2023
  • REVIEW OF POLYMER-MATRIX COMPOSITES WELDED TO ALUMINIUM ALLOYS
    Agha Ndukwe, Chukwudike Onuoha, Chioma Njoku, Nsikan Dan, Justus Anaele
    Acta Periodica Technologica, 2023
  • The inhibition of mild steel corrosion by papaya and neem extracts
    Agha Ndukwe, Dan Etim, Anaele Uchenna, Ozoh Chibuike, Kooffreh Okon, et al.
    Materials Protection, 2023
  • Predictive model for the corrosion inhibition of mild steel in 1.5 M HCl by the leaf-juice of Carica papaya
    Materials Protection, 2023
  • Determination of the Durability of Polyurethane Coating on Mild Steel in Various Soil Media
    Anyanwu K.O, Anyakwo A.N, Ndukwe A.I, Chukwudike O, Chukwudi A.P
    International Research Journal of Multidisciplinary Technovation, 2022
  • GREEN INHIBITORS FOR CORROSION OF METALS IN ACIDIC MEDIA: A REVIEW
    Academic Journal of Manufacturing Engineering, 2022
  • REVIEW OF RECENT FINDINGS ON INVESTMENT CASTING OF TITANIUM ALLOYS
    Academic Journal of Manufacturing Engineering, 2022
  • PREDICTION OF COMPRESSION STRENGTH OF BAMBOO REINFORCED LOW-DENSITY POLYETHYLENE WASTE (LDPEw) COMPOSITES
    Composites Theory and Practice, 2022