Metall. Res. Technol.
Volume 112, Number 3, 2015
|Number of page(s)||9|
|Published online||13 May 2015|
Homogenization of 30CrMnSi steel ingots: thermodynamic/kinetic simulation and experimental validation
State Key Laboratory of Advanced Metallurgy, University of Science
and Technology Beijing, Beijing
2 Xining Special Steel Co., LTD., Xining 810005, P.R. China
Received: 16 June 2014
Accepted: 3 April 2015
The as-cast microsegregation profiles of a 30CrMnSi ingot were predicted by the diffusion-controlled transformations (DICTRA) software. Then, a conservative estimate of the solidification temperature range was provided by the modified Scheil module of Thermo-Calc software, the result was combined with the previous simulated microsegregation profiles that were used in the DICTRA software to simulate the homogenization kinetics of this steel. The simulated concentration profiles were confirmed by the experimental composition analysis, the good agreement between the simulation and experiments shows that the thermodynamic calculation and kinetic simulation approaches can be used to design an optimized homogenization heat treatment for as-cast ingots, which does not require a large amount of experimental data of test ingots.
Key words: Homogenization / microsegregation / freckles / diffusion
© EDP Sciences 2015
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.