Constitutive Modeling for the Prediction of Peak Stress in Hot Deformation Processing of Al Alloy Based Nanocomposite

V. Senthilkumar; A. Balaji Abhishek; Hafeez Ahamed

doi:10.4028/www.scientific.net/AMR.328-330.1602

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 328-330Constitutive Modeling for the Prediction of Peak...

Constitutive Modeling for the Prediction of Peak Stress in Hot Deformation Processing of Al Alloy Based Nanocomposite

Abstract:

Hot deformation tests were carried out on Al5083 – 2 %(vol) TiC nanocomposite in a temperature range of 250 – 450°C at varying strain rate of 0.01 – 1.0 sec^-1. Constitutive models were developed for the prediction of peak flow stress relating strain rate, true stress, temperature and activation energy. The percentage error between measured flow stress and constitutive model values were calculated to analyse the efficacy of the model in the prediction of peak stress. Finally, a window of working of the selected nanocomposite is established for finding out the safer region of working.

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Periodical:

Advanced Materials Research (Volumes 328-330)

Pages:

1602-1605

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.328-330.1602

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Online since:

September 2011

Authors:

V. Senthilkumar, A. Balaji Abhishek, Hafeez Ahamed

Keywords:

Constitutive Model, Dynamic Recovery, Flow Stress, Nanocomposite

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References

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