Characterization and Corrosion Behaviours of Aluminium Alloy/Aquaculture Shell Powder Particulates in Acidic Environment

Suleiman, I. Y.; Obayi, Camillus Sunday; Adams, Merrill

doi:10.1007/s40735-020-00427-x

Cited by 2 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The corrosion rates of the LM26 Al matrix composites with 6 wt% and 10% SPFA as shown in Figures 10(a) and (b) were severe, with the dissolution of SPFA leaving large irregular pits and cracks on the surface of the corroded coupons. A similar observation was reported with pits formation on Al alloy composite reinforced with aquaculture shell powder (Suleiman et al. , 2020).…”

Section: Resultssupporting

confidence: 88%

See 1 more Smart Citation

Hardness and corrosion behaviour of stir cast LM26 Al/sugar palm fibre ash composites

Aliyu,

Sapuan,

Zainudin

et al. 2023

MMMS

View full text Add to dashboard Cite

PurposeThe conflicting results on the corrosion characteristics of aluminium matrix composites reinforced with agrarian waste have stimulated an investigation on the hardness and corrosion rate of sugar palm fibre ash (SPFA) reinforced LM26 Al/alloy composite by varying the SPFA from 0 to 10 wt% in an interval of 2 wt%. This paper aims to discuss the aforementioned issue.Design/methodology/approachThe composites were produced via stir-casting and the hardness was determined using a Vickers hardness testing machine, corrosion rate was examined through the weight loss method by immersion in 0.5, 1.0 and 1.5 M hydrochloric acid (HCl) at temperatures of 303, 318, and 333 K for the maximum duration of 120 h. The morphological study was conducted using a scanning electron microscope (SEM) on the samples before and after immersion in HCl.FindingsThe incorporation of SPFA improved the hardness of the alloy from 58.22 to 93.62 VH after 10 wt% addition. The corrosion rate increases with increased content of SPFA, the concentration of HCl and temperature. The least corrosion rate of 0.0272 mpy was observed for the LM26 Al alloy in 0.5 M after 24 h while the highest corrosion rate of 0.8511 mpy was recorded for LM26 Al/10 wt% SPFA in 1.5 M HCl acid after 120 h. The SEM image of corroded samples revealed an increased number of pits with increased SPFA content.Research limitations/implicationsThe work is limited to SPFA up to 10 wt% as reinforcement in LM26 Al alloy, the use of HCl as corrosion medium, temperatures in the range of 303–333 K, and a weight loss method were used to evaluate the corrosion rate.Originality/valueThe corrosion rate was determined for LM26 Al/SPFA composites with various amounts of SPFA in 0.5, 1.0 and 1.5 M HCl at 303, 318 and 333 K and compared with the matrix alloy.

show abstract

Section: Resultssupporting

confidence: 88%

“…Three coupons each were then immersed in aerated 0.5, 1.0, and 1.5 M HCl solutions for 24, 48, 72, 96 and 120 h at temperatures of 303, 318, and 333 K, in accordance with ASTM G-31 72 (ASTM, 2004). Temperatures in the same range of 300–324 K were adopted by (Suleiman et al. , 2020).…”

Section: Methodsmentioning

confidence: 99%

Hardness and corrosion behaviour of stir cast LM26 Al/sugar palm fibre ash composites

Aliyu,

Sapuan,

Zainudin

et al. 2023

MMMS

View full text Add to dashboard Cite

show abstract

“…Extended exposure to rapid salt spray corrosion [3] may result in the formation of insufficient oxide layers, which can induce pitting and exfoliation corrosion, resulting in a substantial decrease in mechanical properties which includes tensile strength and impact strength [3], [5]. Another study had also obtained, that acidic solutions, such as HCl, can greatly accelerate the corrosion rate of aluminium alloys, especially when exposed to different concentrations and temperatures [6]. Thus, it becomes important to analyze and control the corrosion behavior of aluminium in acidic environment.…”

Section: Introductionmentioning

confidence: 99%

Analysis of The Corrosion Inhibition Efficacy of Camellia Sinensis Extract on Aluminium 6061 Alloys using Artificial Neural Network (ANN)

Andrean,

Harmayanti,

Wahjudi

et al. 2024

memi

View full text Add to dashboard Cite

Aluminum alloys, well known for their corrosion resistance, could encounter corrosion issues in acidic environments. These environments induced pitting and exfoliation corrosion due to the absence of oxide layers from such alloys. Camellia sinensis extract, one of the organic extract, had inhibition compounds, including tannins and cathecins, that could inhibit corrosion and reduce the corrosion rate. Hence, this study investigated the corrosion inhibition efficacy of Camellia sinensis extract on Aluminum 6061 alloys when exposed to an acidic environment (1M HCl). Different concentrations of the extract were prepared to obtain the optimum concentration and achieve the highest inhibitor efficiency. In addition, an artificial neural network (ANN) model, was employed to predict polarization current in both inhibited and unhibited solutions. The model was designed using a configuration of one input, six hidden and one output ;ayers. The study discovered that the efficiency reached a remarkable level of 82.68% when using a concentration of 3000 ppm of Camellia sinensis extract. Furthermore, the ANN model demonstrated excellent performance in predicting polarization current across all variations, with determinant coefficient (R2) values of 0.995 for 0 ppm, 0.990 for 1000 ppm, 0.997 for 2000 ppm, 0.9996 for 3000 ppm, and 0.996 for 4000 ppm. These results indicated that the model was reliable in simulating the electrochemical analysis of corrosion behavior which could be used to develop a corrosion rate predictor in the future.

show abstract

Characterization and Corrosion Behaviours of Aluminium Alloy/Aquaculture Shell Powder Particulates in Acidic Environment

Cited by 2 publications

References 17 publications

Hardness and corrosion behaviour of stir cast LM26 Al/sugar palm fibre ash composites

Hardness and corrosion behaviour of stir cast LM26 Al/sugar palm fibre ash composites

Analysis of The Corrosion Inhibition Efficacy of Camellia Sinensis Extract on Aluminium 6061 Alloys using Artificial Neural Network (ANN)

Contact Info

Product

Resources

About