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Showing 1 to 11 of 11 for “"iron based alloys"”.
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Iron-Based Alloys as Catalysts for CO2 Hydrogenation
… study looked at the performance of a range of iron-based bimetallic catalysts in promoting CO2 hydrogenation. Specifically, iron-nickel, iron-cobalt and iron-copper supported on βsilicon carbide were studied. It had been reported that these materials were more active and selective towards long …
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Microstructure and mechanical properties of laser shocked iron-based alloys
The effects of laser shock processing (LSP) on the microstructure and mechanical properties of the low carbon (0.04 wt.%C) and Hadfield manganese (1%C and 14%Mn) steels have been studied. LSP was performed with a 1.054 $\mu$m wavelength Nd:phosphate laser operating in a pulse mode (600 ps pulse …
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Evaluation of metal dusting of nickel-chromium-iron based alloys in a laboratory environment
The deposition of carbon from a carbon-rich environment onto structural materials is prevalent in petrochemical and chemical industries such as in the production of syngas, iron reduction plants, petroleum refineries, carbon dioxide cooled nuclear plants, fuel cells using molten salts and …
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Modeling of twinning as a deformation mechanism in iron (bcc) crystals and iron-based alloys
… An analytical expression is developed based on the geometrical parameters such as twin width and length, and the magnitude of the residual dislocation that quantifies the critical stress required for twin migration. Energy analysis based on the total elastic energies of the interacting …
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Effect of hydrogen on the coefficient of friction of iron
The friction force of an Annco iron-on-Annco iron sliding system was measured in laboratory air, nitrogen, and hydrogen. The coefficient of friction for each environment was calculated and the amplitude of the "stick-slip" behavior from each environment was observed. It was found that the …
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Laser Powder Bed Fusion Additive Manufacturing of Fe-based Shape Memory Alloys for Biomedical Applications
Biodegradable Fe-Mn-Si alloys are promising candidates for biomedical implant applications, combining degradability with desirable mechanical performance and shape memory properties. However, the inherently slow corrosion rate of iron-based alloys poses challenges that limit their practical …
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Kinetics of carbide dissolution in chromium + molybdenum steels during oxidation
Iron-based alloys containing 15% chromium, 2-3% molybdenum and 0.02-1.7% carbon, consisting of M23C6 and M6C carbides in an austenitic matrix were oxidised at 8500C to study their oxidation resistance and a precipitate-free zone formation. Alloy design was carried out using a thermodynamic software …
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Development of multi-component iron-based amorphous alloy
… and assessing its glass forming ability. Iron (Fe) was chosen as the solvent element because it is significantly cheaper than the base elements found in some other metallic glasses and does not require the addition of large quantities of expensive alloying elements to enable vitrification. …
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Multiscale Modeling of Effects of Solute Segregation and Oxidation on Grain Boundary Strength in Ni and Fe Based Alloys
Nickel and iron-based alloys are important structure and cladding materials for modern nuclear reactors due to their high mechanical properties and high corrosion resistance. To understand the radiative and corrosive environment influence on the mechanical strength, computer simulation works are …
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Laboratory simulation of metal dusting corrosion
… and study the metal dusting corrosion of four iron-based alloys viz. 9Cr Mo 45 steel, Incoloy 800H, AISI 310 stainless steel and Chromanite - an experimental high-nitrogen Cr-Mn stainless steel (HNSS). Tests conducted on the carburising furnace show that the rig is capable of heating a flowing …