Application of Taguchi Method for Investigating the Mechanical Properties of a Microalloyed Steel

In the present investigation, the effects of processing parameters, such as roughing, finishing and coiling temperatures, on the strain hardening exponent and yield strength of a Nb-microalloyed steel has been studied by Taguchi method. In order to achieve maximum n-value and yield strength, tests w...

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Bibliographic Details
Published in:Archives of metallurgy and materials 2014-10, Vol.59 (3), p.853-858
Main Authors: Ayaz, M., Arab, N. Banimostafa, Khaki, D. Mirahmadi
Format: Article
Language:English
Subjects:
Hot Rolling
Microalloyed steel
Strain hardening exponent
Taguchi method
Yield strength
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Summary:In the present investigation, the effects of processing parameters, such as roughing, finishing and coiling temperatures, on the strain hardening exponent and yield strength of a Nb-microalloyed steel has been studied by Taguchi method. In order to achieve maximum n-value and yield strength, tests were done in a laboratorial pilot considering a L16 orthogonal array of Taguchi method under following condition: roughing temperature of 1000, 1050, 1100, 1150 °C, finishing temperature of 800, 850, 900, 950 °C, coiling temperature of 550, 600, 650, 700 °C. Then, analysis of variance and signal to noise ratios are performed on the measured data. The results indicated that the finishing and coiling temperatures were the major factor affecting the mechanical properties. The confirmation tests at optimal conditions approve the effectiveness of this robust design methodology in investigating the hot rolling process of the microalloyed steels.
ISSN:2300-1909
1733-3490
2300-1909
DOI:10.2478/amm-2014-0144