Temperature changes during the heating part of a semi-solid steel yield stress testing procedure on Gleeble simulator

Marcin Hojny¹ , Mirosław Głowacki¹, Roman Kuziak², Władysław Zalecki²

¹AGH-University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland.
²Institute for Ferrous Metallurgy, ul. Karola Miarki 12-14, 44-100 Gliwice, Poland.

DOI:

https://doi.org/10.7494/cmms.2011.2.0301

Abstract:

The main objective of this work is experimental verification of resistance heating solver which is an integral part of a computer aided procedure of yield stress investigation of steels at very high temperature. The procedure of strain-stress curves investigation connect the possibility of the Gleeble thermo-mechanical simulator with developed by authors dedicated FEM system (called Def_Semi_Solid v.5.0). Hence, the temperature distribution inside the tested samples should be mapped with a high level of accuracy. Due to the very high sensitivity of the material rheology to temperature changes, the testing procedure requires as uniformly distributed temperature as possible. The basic reason for non-uniform temperature distribution within the sample is its contact with copper jaws of the simulator during heating process. In the paper the influence cooper handles for temperature distribution inside the samples was analyzed. Finally, the comparison between experimental and theoretical results was accomplished in order to estimate the quality of developed solver.

Cite as:

Hojny, M., Głowacki, M., Kuziak, R., & Zalecki, W. (2011). Temperature changes during the heating part of a semi-solid steel yield stress testing procedure on Gleeble simulator. Computer Methods in Materials Science, 11(2), 324 – 329. https://doi.org/10.7494/cmms.2011.2.0301

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