Assessment of the Corrosion Behavior of Mechanically Improved Mild Steel Surface Designed For Marine Application | Chapter 01 | Novel Perspectives of Engineering Research Vol. 6

 The desire to increase the corrosion resistance of mild steel for engineering purposes prompted this experiment. The carburizers were chosen from animal bones, periwinkle shell, and snail shell. Each of these carburizers was pulverised and mixed with calcium carbonate, an energizer (CaCO3). At temperatures ranging from 700 to 1000°C, the treatment was carried out at 100°C intervals. 3.5 percent sodium chloride was used to simulate a marine environment. Linear polarisation was used for the corrosion experiment, and an optical microscope was used to assess the impact of the treatments on the structures. According to the findings, the selected carburizers can compete favourably and perform better in the simulated maritime environment than the as-received (AR) sample. This occurs as a result of carbon atom diffusion from the carburizer through the steel sample's epidermis. Finally, it was revealed that the carburized samples outperformed the AR samples in terms of corrosion resistance.

Author(S) Details

E. I. Dongo
Department of Metallurgical & Materials Engineering, Kogi State Polytechnic, Lokoja, Nigeria.

M. I. Momoh
Department of Metallurgical & Materials Engineering, Kogi State Polytechnic, Lokoja, Nigeria.

A. A. Barnabas
Department of Metallurgical & Materials Engineering, Federal University of Technology, Akure, Nigeria.

View Book:- https://stm.bookpi.org/NPER-V6/article/view/5495

Toxicology of Nickel | Chapter 14 | Emerging Research in Medical Sciences Vol. 4

The study was carried out in Eagle Island River, located in Mgbuosimini community, Port Harcourt, Nigeria. In this study, the concentration of Nickel (Ni) in sediments and periwinkles (Tympanotonus fuscatus) were determined from 25 sample stations in Eagle Island River. The portion of the periwinkle that was assayed was the edible part. The assay was carried out using Atomic Absorption Spectrophotometer (AAS). The mean±SD of Ni concentrations in sediments and periwinkles were 2.77±1.05 mg/kg and 6.25±1.98 mg/kg respectively. The mean concentration of Ni was higher in periwinkles than in sediments. The correlation coefficient between Ni concentrations in sediment and periwinkle was 32.7%. Following the increasing industrial activities and waste disposal in the water body, the need to regularly determine the concentrations of this heavy metal in the water, aquatic lives and sediments is imperative in order to uphold environmental and human health protection.

Author(s) Details
Amadi, Fyneface Chikadibia 
Department of Medical Laboratory Science, Rivers State University, Port Harcourt, Nigeria.

Emeji, Roseline
Department of Medical Laboratory Science, Rivers State College of Health Science and Technology, Nigeria.

Konne, Felix Eedee 
Department of Medical Laboratory Science, Rivers State University, Port Harcourt, Nigeria.

Jacob, Ransom Baribefii
Department of Medical Laboratory Science, Rivers State University, Port Harcourt, Nigeria.

View Book: - http://bp.bookpi.org/index.php/bpi/catalog/book/167