The New Fluidized Bed Thermo-Chemical Treatment in Chemically Active Powders – CFD Analysis of the Method

Tomasz Babul; Aleksander Ciski; Paweł Oleszczak

doi:10.4028/www.scientific.net/AMR.902.82

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The New Fluidized Bed Thermo-Chemical Treatment in Chemically Active Powders – CFD Analysis of the Method

Abstract:

The paper describes the principles of carrying out of a new type of fluidized bed thermo-chemical treatment in chemically active powders with fluidization by chemically inert gas. The article presents selected results of a computer simulation of chemically active fluidized bed phenomena used in the thermo-chemical treatment of steel. For this purpose, a numerical model of the fluidized bed with a specific calculation area, has been prepared. The results of CFD (Computational Fluid Dynamics) computer simulation of temperature distribution and fluidizing gas mass distribution along the walls of samples placed in the fluidized bed are presented. Results of exemplary carburizing process are given. Metallographic observations and hardness measurements confirm the correctness of the of the carburized layer structure, which was formed on the C22 unalloyed carbon steel.

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Periodical:

Advanced Materials Research (Volume 902)

Pages:

82-87

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.902.82

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Online since:

February 2014

Authors:

Tomasz Babul, Aleksander Ciski*, Paweł Oleszczak

Keywords:

CFD, Chemically Active Powder, Fluidized Bed, Thermo-Chemical Treatment

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References

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[5] European standard EN ISO 2639: Determination and verification of the depth of carburized and hardened cases.

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