NDLI: Multiple-Scale Thermomechanical Analysis of a Forced-Cooled Aluminum Reduction Pot

Content Provider	Springer Nature Link
Author	Hassan, Mohamed I. Brimmo, Ayoola T. Shatilla, Youssef
Copyright Year	2014
Abstract	Accurate prediction of the thermomechanical behavior of the aluminum reduction pot, in aluminum smelters, is critical in ensuring the pot’s mechanical integrity is maintained during forced-cooling procedures. To that effect, this study investigates the microstructural and macrostructural behavior of the steel potshell under different forced-cooling techniques. In the microscale analyses, tensile and microhardness tests are followed by scanning electron microscope (SEM) imaging of the potshell material cooled at different rates. In this scale, the effect of various cooling rates on the potshell’s microstructural evolution is investigated. Thermal and mechanical experimental characterizations of the potshell material are performed to facilitate the development of a three-dimensional (3-D) thermomechanical (TM) finite-element model of the pot. Using the commercial code ANSYS, a macroscale TM model of the pot is developed, validated, and used to estimate thermal-induced stresses during different cooling techniques. Tensile tests and microscale measurements show that cooling rates between 0°C/s and 50°C/s does not significantly affect the microstructural integrity of the potshell material. The TM model depicted a good correlation with practical measurements. The results from the model show that the metal-pad forced-cooling technique presents no danger to the mechanical integrity of the potshell.
Starting Page	202
Ending Page	210
Page Count	9
File Format	PDF
ISSN	10474838
Journal	JOM
Volume Number	67
Issue Number	1
e-ISSN	15431851
Language	English
Publisher	Springer US
Publisher Date	2014-12-11
Publisher Institution	The Minerals, Metals & Materials Society (TMS)
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Engineering Chemistry/Food Science Physics Environment Earth Sciences
Content Type	Text
Resource Type	Article
Subject	Engineering Materials Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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