Hybrid Analytical-Numerical Analysis of SAE 4150 Alloy Steel Rods Cooling

Abstract:

In this work, a hybrid analytical-numerical study was performed in cooling of rectangular rods made from SAE 4150 alloy steel (0.50% carbon, 0.85% chrome, 0.23% molybdenum, and 0.30% silicon). The analysis can be represented by the solution of transient diffusive problems in rectangular cylinders with variable thermo-physical properties in its domain under the boundary conditions of first kind (Dirichlet condition) and uniform initial condition. The diffusion equation was linearized through the Kirchhoff Transformation on the temperature potential to make the analytical treatment easier. The Generalized Integral Transform Technique (GITT) was applied on the diffusion equation in the domain in order to determine the temperature distribution. The physical parameters of interest were determined for several aspect ratios and compared with the results obtained through numerical simulations using the commercial software ANSYS/Fluent^TM 15.

• Periodical: Advanced Materials Research (Volume 1082)
• Pages: 187-190
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1082.187
• Online since: December 2014
• Authors: Marcelo Ferreira Pelegrini, Thiago Antonini Alves*, Felipe Baptista Nishida, Ricardo A. Verdú Ramos, Cassio R. Macedo Maia
• Keywords: Cooling, Heat Treatment, Hybrid Analytical-Numerical Solution, SAE 4150 Alloy Steel

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