The use of the finite element method to locate the places of damage occurrence in elements of technological equipment in carburizing furnaces

Tuleja, J.; Kędzierska, Katarzyna; Sowa, Mariusz

doi:10.1016/j.procs.2022.09.455

Procedia Computer Science

2022

DOI: 10.1016/j.procs.2022.09.455

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The use of the finite element method to locate the places of damage occurrence in elements of technological equipment in carburizing furnaces

J. Tuleja

Katarzyna Kędzierska²,

Mariusz Sowa³

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2024

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The Effect of Carbide Concentration at Grain Boundaries on Thermal Stresses in Castings for Heat Treatment Furnace Tooling

Bajwoluk,

Gutowski

2024

Archives of Foundry Engineering

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Austenitic Fe-Ni-Cr alloys are commonly used for the production of castings intended for high-temperature applications. One area where Fe-Ni-Cr castings are widely used is the equipment for heat treatment furnaces. Despite the good heat resistance properties of the materials used for the castings, they tend to develop cracks and deformations over time due to cyclic temperature changes experienced under high temperature operating conditions. In the case of carburizing furnace equipment, thermal stresses induced by the temperature gradient in each operating cycle on rapidly cooled elements have a significant influence on the progressive fatigue changes. In the carburized subsurface zone, also the different thermal expansion of the matrix and non-metallic precipitates plays a significant role in stress distribution. This article presents the results of analyses of thermal stresses in the surface and subsurface layer of carburized alloy during cooling, taking into account the simultaneous effect of both mentioned stress sources. The basis for the stress analyzes were the temperature distribution in the cross-section of the cooled element as a function cooling time, determined numerically using FEM. These distributions were taken as the thermal load of the element. The study presents the results of analyses on the influence of carbide concentration increase on stress distribution changes caused by the temperature gradient. The simultaneous consideration of both thermal stress sources, i.e. temperature gradient and different thermal expansions of phases, allowed for obtaining qualitatively closer results than analyzing the stress sources independently

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The Effect of Carbide Concentration at Grain Boundaries on Thermal Stresses in Castings for Heat Treatment Furnace Tooling

Bajwoluk,

Gutowski

2024

Archives of Foundry Engineering

View full text Add to dashboard Cite

show abstract

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The use of the finite element method to locate the places of damage occurrence in elements of technological equipment in carburizing furnaces

Cited by 1 publication

References 6 publications

The Effect of Carbide Concentration at Grain Boundaries on Thermal Stresses in Castings for Heat Treatment Furnace Tooling

The Effect of Carbide Concentration at Grain Boundaries on Thermal Stresses in Castings for Heat Treatment Furnace Tooling

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