Results 21 to 30 of about 86 (78)
Modeling And Characterization Of High Carbon Nanobainitic Steels [PDF]
, 2021 Analytical models have been developed for the transformation kinetics, microstructure analysis and the mechanical properties in bainitic steels. Three models are proposed for the bainitic transformation based on the chemical composition and the heat treatment conditions of the steel as inputs: (1) thermodynamic model on kinetics of bainite ...
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MATEC Web of Conferences, 2016 The XRD analysis, microstructure observation and mechanical test were used to investigate the phase composition, micromorphology and mechanical properties of the intermediate transformation products in an ultra-low carbon steel non-containing Nb and Ti ...
Li Na +3 more
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Metals, 2019 Both ausforming and transformation temperature affect the successive bainitic transformation and microstructure. The individual influence of each case is clear, whereas the combined effects are still unknown. Thermomechanical simulation and metallography
Hang Zou +4 more
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Journal of Materials Research and TechnologyThis study investigates the bainite transformation kinetics, microstructural evolution, and mechanical properties of Al-alloyed 3MnNb and 4MnNb multiphase steels subjected to a novel hybrid heat treatment.
Mateusz Morawiec +6 more
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PROTECTIVE EFFECTIVENESS OF ARMOUR MADE OF NANOBAINITIC STEEL
Journal of Metallic Materials, 2020 The article presents the results of tests on resistance to perforation of nanobainitic steel plates with a thickness in the range of 6–9 mm with the use of projectiles with different perforation mechanisms. Firing tests were carried out using 7.62×39 mm BZ ammunition in accordance with the requirements of the NATO Stanag 4569A standard document (level ...
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INDUSTRIAL TECHNOLOGY OF MANUFACTURING ULTRA-STRENGTH NANOBAINITIC STEEL PLATES
Journal of Metallic Materials, 2020 Nanobainitic steel grades are a new construction material with a strength in the range of 1.9–2.2 GPa, at the same time characterised by good plasticity. Currently, the works on the development of nanobainitic steels at Łukasiewicz – IMŻ have entered the commercialisation phase.
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Development of Nanobainitic Microstructures in Carbo-Austempered Cast Steels: Heat Treatment, Microstructure and Properties [PDF]
Metals, 2020 Carburizing implies the existence of a carbon gradient from the surface to the core of the steel, which in turn will affect both the critical temperature for austenite formation and the kinetics of the bainitic transformation during the austempering treatment.
Oscar Ríos-Diez +4 more
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Effect of chemical segregation on nanobainitic transformation in laser cladded coatings
Materials & Design, 2015 Abstract Laser cladding and subsequent isothermal holding were employed to fabricate the Fe-based nanobainitic coatings. The microstructures of the isothermal heat treated coatings were observed and characterized by using the optical microscope (OM), filed-emission scanning electron microscope (FE-SEM), field-emission transmission electron microscope
Yanbing Guo +3 more
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Reverse Hall–Petch Effect of Nano-Bainite in a High-Carbon Silicon-Containing Steel
MetalsHigh-strength steels are widely used in various mechanical production and construction industries for their low cost, high strength and high toughness. Among these, bainitic steels have better comprehensive performance relative to martensite and ferrite.
Xin Zhang +5 more
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Journal of Alloys and Metallurgical SystemsIn this study, during an ausforming treatment, the specimens were austenitized at 1100°C and then exposed to rolling process at temperature of 300 °C by different degrees of deformation; 5, 10 and 15 %, and finally were undergone an austempering ...
Mehrbod Modarresi, Roohollah Rahmanifard
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