Numerical optimization of the casting of ceramic material EUCOR

článek ve sborníku ve WoS nebo Scopus

angličtina

Corundo-baddeleyit material (CBM) EUCOR is a heat and wear-resistant material even at extreme temperatures. This article introduces a numerical model of solidification and cooling of this material in a non-metallic mold. The model is capable of determining the total solidification time of the casting and also the place of the casting which solidifies last. Furthermore, it is possible to calculate the temperature gradient at any point and time, and also determine the local solidification time and the solidification interval of any point. The local solidification time is one of the input parameters for the cooperating model of chemical heterogeneity. This second model and its application on EUCOR samples prove that the applied method of measuring the chemical heterogeneity provides the detailed quantitative information on the material structure and makes it possible to analyze the solidification process. The analysis of this process entails statistical processing of the measurement results of the heterogeneity of the EUCOR components and performs the correlation of individual components during solidification. The verification of both numerical models was conducted on a real cast 350 x 200 x 400 mm block.

corundo-baddeleyit material, numerical model of solidification, model of chemical heterogeneity

KAVIČKA, F.; DOBROVSKÁ, J.; STRÁNSKÝ, K.; SEKANINA, B.; ŠTĚTINA, J.

2011

13. 3. 2011

ASME

Honolulu USA

978-0-7918-3892-1

Proceedings of the ASME/JSME 2011 AJTEC2011

8

T44058

T44058

6