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Modelling and Simulation of Low Pressure Carburizing Furnaces
, 2020 In this paper, modelling of a low pressure carburizing furnace is developed. Acetylene is chosen as the reactive gas and its pyrolysis, described by a detailed kinetic mechanism is studied in a perfectly stirred tank reactor. Special attention is paid to the fluid-solid interactions; adsorption is described using a Langmuir approach and a first order ...
Matamoros, Fatima +4 more
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The kinetics of low-pressure carburizing of alloy steels
Vacuum, 2011Abstract In the article the author analyzed the kinetics of low-pressure carburizing of alloy steels, based on steel 16MnCr5 and CSB 50NIL. It was found that an active radical-carbon layer (carbon deposit) deposits on the surface of austenite grains or austenite and carbides during boost steps. This layer mediates in moving the carbon deeper into the
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Optimizing the low-pressure carburizing process of 16Cr3NiWMoVNbE gear steel
Journal of Materials Science and Technology, 2019Abstract Compared with the traditional atmospheric carburization, low-pressure carburization has the benefits of producing no surface oxidation and leaving fine, uniformly dispersed carbides in the carburized layer. However, the process parameters for low-pressure carburization of 16Cr3NiWMoVNbE steel have yet to be optimized.
Yong Tian
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Crystals, 2023 This article presents the results of a study to identify intermetallic phases whose role is to limit austenite grain growth in the low-pressure carburizing process.
Konrad Dybowski +2 more
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, 2013 AbstractLow-pressure carburizing (LPC) is one of the most popular case-hardening processes and is applied to increase the fatigue limit of dynamically loaded components. It takes place in a pressure range between 5 and 15 mbar (4 and 11 torr) and at temperature range between 870 and 1050 deg C.
Volker Heuer
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Coatings, 2021 This paper presents the concept of modification of physicochemical properties of steels by simultaneous diffusion saturation with carbon and chromium or aluminum.
Konrad Dybowski +2 more
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Coatings, 2020 Low-pressure vacuum carburizing adopts a pulse process mode to improve the carburizing efficiency and reduces gas and energy consumption. Carbon flux is the key to accurately control the time of strong infiltration and diffusion in each pulse.
Yong Tian, Xiaoxue An, Wang Zhaodong
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Chemical Engineering Science, 2019 International audienceLow-pressure carburizing involves hydrocarbon pyrolysis, which leads to a fast gas-phase formation of polycyclic aromatic hydrocarbons (PAHs), some of which, such as benzo[a]pyrene, are carcinogenic.
Minh Duy Le +2 more
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Numerical Simulation of Low-Pressure Carburizing and Gas Quenching for Pyrowear 53 Steel
Metals, 2023 The hardness and phase composition are, among other things, the critical material properties considered in the quality control of aerospace gears made from Pyrowear 53 steel after high-pressure gas quenching.
Bartosz Iżowski +2 more
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