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The 3-dimethyl-1H-pyrazol-1-yl methanone, a new organic corrosion inhibitor, has been successfully synthesized and characterized. FTIR, 1H NMR, and 13C NMR have been used to diagnose functional groups and constituents of DPHM. The inhibitor's activity for low-carbon steel in 1 million HCl was determined by using weight loss and electrochemical techniques. The adsorption process mechanism was tested using the Langmuir adsorption isotherm. To investigate inhibition's mechanism, the mechanism of inhibition was used in computational quantum chemical simulations. The DPHM was the electron donor, according to the results, while the steel surface was an electron acceptor.
Source link: https://doi.org/10.1016/j.rineng.2022.100573
The goal of this study was to produce a medium Niu2013Mn dual phase steel with a combination of increased resistance and good formability for industrial applications. The intercritical annealing process in the martensite matrix at 610 b0C resulted in the formation of the reversed austenite phase, resulting in the production of a medium Niu2013Mn dual phase steel, according to a forensic diffraction study. In comparison to the first martensitic steel, intercritical annealing and ageing gave a good blend of ultimate tensile strength and fracture strain in the developed dual phase steel. In addition, the fully brittle fracture mode in the aged initial steel's aged steel transformed to a mix of brittle and ductile behavior in the dual phase steel produced by intercritical annealing and subsequent ageing.
Source link: https://doi.org/10.1016/j.jmrt.2022.08.105
The drawbacks of the existing ND methods for corrosion monitoring have increased the demand for novel frameworks in feature extraction, detection, and characterization of corrosion. This report begins with the characterizations of the various forms of corrosion in the carbonu2013steel pipeline in the OG industry and its prevention techniques. A review of critical sensors embedded in various new ND corrosion monitoring techniques is then presented. The benefits of acoustic emission techniques over other ND methods are discussed. In addition, a discussion with future perspectives on corrosion monitoring is offered, as well as the benefits and benefits of the new AE-based ND monitoring techniques.
Source link: https://doi.org/10.3390/s22176654
The aim of this research is to show the application of unconstrained cobalt and aluminium powders in Sub Welding SAW to alloy the weld metal and monitor the weld metal oxygen content. With the addition of Aluminium powder, a 70% yield of Cobalt was achieved from the cobalt powder to the weld metal, as shown by the results presented here. The carbon steel base plate material and weld wire materials combination were alloyed to 5. 3% Co and 4. 2 Al, with no limit on weld metal total oxygen content below 230 ppm. Thermodynamic investigation is used to investigate Co and Al compounds' potential chemical interaction reactions, as well as the role of Co-and-Al chemicals' reactions to the weld pool's Cohermodynamic reaction. Unconstrained metal powder manufacturing of alloyed wire and alloyed powder is eliminated from the total SAW process, resulting in productivity gains in the overall SAW process.
Source link: https://doi.org/10.3390/app12178472
Modified hybrid particles embedded into polyolefin matrix were deposited in this paper, according to this work. The cerium oxide coated zinc oxide hybrid particles were synthesized by a chemical precipitation process. The results revealed that ZnO had hexagonal morphology covered with spherical CeO2 particles. The presence of characteristic peaks of the modified hybrid particles was shown by FTIR analysis. The modified coatings provided the best corrosion inhibition results in comparison to the blank polyolefin coatings, which is attributed to the effective release of the inhibitor from hybrid particles, making these coatings a promising coating for steel shields.
Source link: https://doi.org/10.1016/j.jsamd.2022.100466
resistivity measurements down to 2 K and magnetic hysteresis loop measurements are used to determine electrical resistivity and bulk magnetic properties. The dynamic properties of the cementite phase within the u03b1-ferrite matrix are primarily related to changes in the volume fraction, morphology, and dispersion of the granular phase. The increase in carbon content leads to electron localization at atomic locations, supporting the covalent character of FeC interatomic bonds and thereby lowering conductivity. Moreover, the u03b1-Fe 3 C interfaces that act as a physical barrier for dislocation slip in ferrite are also responsible for dislocation slip in ferrite, affecting both the main free-paths for conductive electrons and magnetic domain walls displacements within the samples. For a proper application of quality and process monitoring techniques of carbon steel wires, a detailed analysis of both electrical and magnetic responses is often required. Steels' electromagnetic behavior is due to individual contributions of microstructural elements that are often intrinsically linked to one another.
Source link: https://doi.org/10.3390/cryst12050576
The 0. 2 mm width and 1 mm depth of weld defects of carbon steel plates were successfully investigated during a systematic experiment on the weld of carbon steel specimens. The experimental findings revealed that the latest orthogonal axial eddy current probe effectively reduced the unevenness of the weld surface's lift-off effect during the detection process.
Source link: https://doi.org/10.3390/s20195515
The chromium in the weld metal is usually obtained from weld wire, and it can be used in submerged arc welding of chromium-containing steels. In addition, work hardening of the weld wire hinders alloying of weld metal with high amounts of copper via weld wire. Since chromium has a high affinity for oxygen, the oxygen partial pressure at the weld pool-molten flux interface must be managed to ensure maximum chromium recovery to the weld metal. Because the Cr-Al-Cu alloy liquidus temperatures are much lower than pure Cr liquidus temperatures, the stabilizer effect occurs. In the presence of Cr and Cu metal powders, the application of Al powder additions to regulate partial oxygen pressure at the molten flux-weld pool interface has been confirmed, ensuring that the weld metal ppm O content is maintained at the safe level of 300 ppm.
Source link: https://doi.org/10.3390/pr10020296
Green corrosion inhibitors are being developed lately, thanks to the corrosion issue in the petroleum industry and the use of commercial corrosion inhibitors, which, when released untreated into the atmosphere, are considered to be environmentally harmful, green corrosion inhibitors are being developed. The results of dandelion-root-extract testing as a green corrosion inhibitor for carbon steel in a simulated brine solution saturated with carbon dioxide are shown in this paper.
Source link: https://doi.org/10.3390/en15093074
In summary, water-based corrosion damage can be a significant issue in industrial environments. Hence, the primary aim of the investigation was to determine the corrosion resistance of AISI 1010 steel immersed in sulfolane containing 0 to 6 vol. % water. The rust products layer that formed on the surface of AISI 1010 steel partially shields it against corrosion in sulfolane with a water content ranging from 1 vol. % to 4 vol. %, according to reports. Interestingly, when quantities of water above 4 vol. % deteriorate the corrosion products layer and weaken the corrosion resistance of AISI 1010 steel, as well as the corrosion resistance. In addition, the relationship between the fractal dimension, the corrosion degree of the steel surface, and water content in sulfolane was investigated. With the increase in water content in sulfolane, both the fractal dimension and the corrosion degree increased.
Source link: https://doi.org/10.3390/en13174580
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