CORROSION BEHAVIOR OF Al/SiC/PKSA HYBRID COMPOSITES IN 1.0 M H2SO4 ENVIRONMENT USING POTENTIODYNAMIC POLARIZATION TECHNIQUE

Ikubanni, P.P.; Oki, Makanjuola; Adeleke, A. A.; Ajisegiri, Emmanuel; Fajobi, Moses Oluwatobi

doi:10.36547/ams.28.4.1561

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…𝐶𝑜𝑟𝑟𝑜𝑠𝑖𝑜𝑛 𝑟𝑎𝑡𝑒, 𝐶𝑅 = 𝐾. 𝑊 𝐴. 𝐷. 𝑇 (1) where CR is the corrosion rate (mm/year), K is a constant (8.766× 10 4 ), T is the time of exposure (hr), A is the area (cm 2 ), W is the weight loss (mg), and D is the density of Al, (g/cm 3 ).…”

Section: Gravimetric Measurementsmentioning

confidence: 99%

“…Aluminium alloys are important structural engineering materials and their applications in industries come closely behind those of steel because of their lightweight, relatively high strength, and good corrosion resistance properties [1,2]. Although highly resistant to atmospheric corrosion, aluminium alloys do undergo serious pitting corrosion in the presence of extraneous ions such as chlorides as may be encountered in process streams [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Valorized rice husk as green corrosion inhibitor for Al 6061 in 1M HCl

Ikubanni,

Oki,

Adediran

et al. 2023

Res. Eng. Struct. Mat.

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This study investigated the inhibition characteristics of rice husk (RH) on corrosion of Aluminum 6061 in 1M hydrochloric acid. Gravimetric analysis and Scanning Electron Microscopy (SEM)/ Energy Dispersive X-ray analysis (EDX) as well as electrochemical studies revealed the potency of RH as a good inhibitor of the corrosion of Al 6061 in 1M HCl. Fourier Transform Infrared Spectroscopy (FTIR) indicated that –OH, C=C, and C=O with signals at (3317.19, 2932.9, 2848.2), (1631.8) and (1105.73, 1030.2, 447.15), respectively in RH were the viable active functional groups which adsorbed on the metal surface to effect reduction of corrosion rates. However, literature suggested the presence of amorphous silica in RH which served as a complimentary corrosion inhibitor. The corrosion current density of Al 6061 was reduced to 3.46 × 10−7 A/cm2 at 24 h as against 9.27 × 10−7 A/cm2 at the commencement of the potentiodynamic polarization measurements in inhibited 1M HCl. The control specimens exhibited an average corrosion rate of 3.86 × 10−6 A/cm2 in HCl solution at the start of this investigation as compared to the corrosion rate of 3.46 × 10−7 A/cm2 at 24 h of exposure in 5 mg RH- inhibited HCl. The obtained results gave a corrosion inhibition efficiency of about 90 to 92%.

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Section: Gravimetric Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Valorized rice husk as green corrosion inhibitor for Al 6061 in 1M HCl

Ikubanni,

Oki,

Adediran

et al. 2023

Res. Eng. Struct. Mat.

View full text Add to dashboard Cite

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“…Stir casting procedure is one of the most commonly used techniques used in the fabrication of metal matrix composites and most AMCs [3,15]. The stir casting technique makes sure of the uniform distribution and dispersion of the reinforcement particles with the matrix material thereby granting the resulting composite good wettability and reactivity [16][17][18][19][20][21]. The use of coal in various industrial applications has increased dramatically in recent years [22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

ASSESSMENT OF TRIBOLOGICAL PROPERTIES OF STIR CAST Al6063 ALLOY REINFORCED WITH OKABA COAL ASH

Odusote

Adeleke²,

Ikubanni³

et al. 2023

Acta Metall Slovaca

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Composite are multi-phase materials made up of matrix and reinforcement. This paper assesses the tribological property of Al6063 alloy (AMCs) reinforced with Okaba coal ash (OCA) using the stir casting method. By using a constant speed of 1000 rpm and two different loads (250 g and 750 g) on Taber wear apparatus, the tribological properties of the produced composite are contrasted with those of an unreinforced Al6063 alloy. The results show a reduction in wear index and the highest abrasion resistance at 4 wt.% coal ash at 500 g and 1000 rpm, as well as at 0, 2, and 6 wt.% with 8.688, 5.878, and 5.813 at 500g and 8.688, 5.878, 4.125, and 5.813 at 750g, respectively. Therefore, for all composite products compared to metal, there is an increase in abrasion resistance with a decrease in wear index, but this decreases when the load is increased to 750g, showing that the higher the load, the higher the wear index, which results in a reduction in abrasion resistance. Load is taken into greater consideration when using the AMCs manufactured in engineering applications. Additionally, SEM images revealed uniform distribution of the OCA reinforcement in the matrix alloy; thereby, improving its wear resistance.

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CORROSION BEHAVIOR OF Al/SiC/PKSA HYBRID COMPOSITES IN 1.0 M H2SO4 ENVIRONMENT USING POTENTIODYNAMIC POLARIZATION TECHNIQUE

Cited by 2 publications

References 12 publications

Valorized rice husk as green corrosion inhibitor for Al 6061 in 1M HCl

Valorized rice husk as green corrosion inhibitor for Al 6061 in 1M HCl

ASSESSMENT OF TRIBOLOGICAL PROPERTIES OF STIR CAST Al6063 ALLOY REINFORCED WITH OKABA COAL ASH

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