Current State of Knowledge on Bare High-Nickel Type Weathering Steel Towards the Application as Concrete Reinforcement

Benito, Emel Ken D.; Ueno, Atsushi; Fukuyama, Tomoko

doi:10.3151/jact.20.313

ACT

2022

DOI: 10.3151/jact.20.313

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Current State of Knowledge on Bare High-Nickel Type Weathering Steel Towards the Application as Concrete Reinforcement

Emel Ken D. Benito

Atsushi Ueno

Tomoko Fukuyama

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Cited by 4 publications

References 56 publications

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Comparative study on periodic immersion+infrared aging corrosion behavior of Q345qNH steel and Q420qNH steel in simulated industrial atmospheric environment medium

Guo,

Yang,

et al. 2024

Materialwissenschaft Werkst

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The corrosion behavior of Q345qNH steel and Q420qNH steel in simulated industrial atmospheric environment medium was studied by periodic immersion+infrared aging corrosion experiment. The results show that the corrosion type of both samples is uneven comprehensive corrosion, and the rust layer formed in the later stage of corrosion is relatively dense. But average corrosion rate of Q345qNH steel is always lower than that of Q420qNH steel, and the ratio of Iα‐FeOOH/Iγ‐FeOOH in rust layer is always higher. Compared with Q420qNH steel, Q345qNH steel has fewer surface pits but deeper local pits. The self‐corrosion potential of Q345qNH steel increases obviously, the resistance of the rust layer is larger, and protection to the matrix is stronger. This is because the formation of a large number of corrosion microcells induced by fine lamellar sorbite tissue that uneven distributed in Q420qNH steel, which increases the corrosion rate and makes corrosion uneven, while the larger pearlitic group in Q345qNH steel increases the local corrosion rate. However, the higher chromium/carbon ratio in Q345qNH steel promotes the conversion of lepidocrocite to goethite and inhibits the cathode reaction in the infrared drying stage, improving the density and stability of the rust layer.

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Comparative study on periodic immersion+infrared aging corrosion behavior of Q345qNH steel and Q420qNH steel in simulated industrial atmospheric environment medium

Guo,

Yang,

et al. 2024

Materialwissenschaft Werkst

View full text Add to dashboard Cite

show abstract

Unraveling the influence of Mo on the corrosion mechanism of Ni-advanced weathering steel in harsh marine atmospheric environments

Niu,

Yuan,

Wang

et al. 2024

Journal of Materials Science & Technology

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Revolutionizing Surgical Instrument Reuse: Microbial Action for Nickel Toxicity Removal from Titanium Implements

Prakash,

Singh,

Saini

2024

Orient. J. Chem

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This work investigates the use of microbial activities to reduce nickel toxicity from old titanium surgical instruments as a means of mitigating metal toxicity. Through efficient purification, these instruments can be reused in a sustainable manner, supporting both economical healthcare practices and environmental preservation. Surgical instruments made of titanium are widely used in the medical profession; however, these devices can become contaminated or hazardous due to the accumulation of nickel over time. The main goal of this study is to employ microbiological action to remove nickel from titanium surgical equipment, encouraging reuse and lowering medical waste. The idea also seeks to offer a practical and cost-effective means of guaranteeing the security of titanium devices intended for human use. This idea suggests using microbiological action to remove nickel from used titanium surgical equipment, allowing for easier reuse. Titanium instruments are safe for reuse since the contamination is removed through the use of microbial uptake of nickel. This helps to limit spending and promotes socioeconomic development. Sulfuric acid treatment of discarded titanium equipment yields a nickel sulphate solution, which is added to culture broths containing microbiological cultures after autoclaving. Spectroscopic measurement after incubation verifies that the nickel has been removed. The microbiological uptake of nickel in the process guarantees the safety and usability of titanium devices. This study describes a novel approach that uses microbial action to remove nickel toxicity from titanium surgical equipment, allowing for their reuse and providing advantages for the environment and economy. This approach may be modified and adjusted further, highlighting its wide applicability and potential influence on medical procedures.

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Current State of Knowledge on Bare High-Nickel Type Weathering Steel Towards the Application as Concrete Reinforcement

Cited by 4 publications

References 56 publications

Comparative study on periodic immersion+infrared aging corrosion behavior of Q345qNH steel and Q420qNH steel in simulated industrial atmospheric environment medium

Comparative study on periodic immersion+infrared aging corrosion behavior of Q345qNH steel and Q420qNH steel in simulated industrial atmospheric environment medium

Unraveling the influence of Mo on the corrosion mechanism of Ni-advanced weathering steel in harsh marine atmospheric environments

Revolutionizing Surgical Instrument Reuse: Microbial Action for Nickel Toxicity Removal from Titanium Implements

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