Startseite Optimization of the hot rolling parameters for evaluation of the formability of Nb-microalloyed steel sheet by using the Taguchi method
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Optimization of the hot rolling parameters for evaluation of the formability of Nb-microalloyed steel sheet by using the Taguchi method

  • Mohsen Ayaz , Daavood Mirahmadi Khaki , Nasrollah Bani Mostafa Arab und Ali Noroozi
Veröffentlicht/Copyright: 30. November 2013
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 104 Heft 12

Abstract

In this paper, the influence of major hot rolling process parameters on strain hardening exponent and grain size as criteria for the formability of Nb-microalloyed steel sheet was investigated and an optimum level of parameters by using Taguchi grey relational analysis has been obtained. For this purpose, parameters of roughing, finishing and coiling temperatures were chosen and four levels for these temperatures were considered. Sixteen experiments for each response were conducted based on an orthogonal array of the Taguchi method. Analysis of variance, signal to noise ratios and grey relational grade were calculated in order to optimize strain hardening exponent and grain size of Nb-microalloyed steel sheets, simultaneously. It was observed that the roughing temperature of 1 050 °C; finishing temperature of 850 °C; and coiling temperature of 700 °C are the optimum parameter values producing better formability in terms of strain hardening exponent and grain size. The validity of Taguchi grey relational analysis to process optimization was also well established by means of confirmation tests.

Keywords: Hot rolling; Nb-microalloyed steel sheets; Formability; Taguchi grey relational analysis; Signal to noise ratio
* Correspondence address, Mohsen Ayaz, Shahid Rajaee Teacher Training University, Lavizan, Tehran, Iran, Tel.: +989377463128, Fax: +982184812124, E-mail:

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Received: 2012-9-11
Accepted: 2013-6-24
Published Online: 2013-11-30
Published in Print: 2013-12-12

© 2013, Carl Hanser Verlag, München

Artikel in diesem Heft

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  2. Contents
  3. Original Contributions
  4. Critical sizes for coherent to semicoherent transition in precipitates
  5. Thixoformability evaluation of AA2011 and AA2014 alloys
  6. Joint strength of friction stir welded AISI 304 austenitic stainless steels
  7. Optimization of process parameters in explosive cladding of titanium/stainless steel 304L plates
  8. Optimization of the hot rolling parameters for evaluation of the formability of Nb-microalloyed steel sheet by using the Taguchi method
  9. XPS measurements of LDX 2101 duplex steel surface after magnetoelectropolishing
  10. Phase equilibria of the Al-Cr-Pr ternary system at 773 K
  11. Processing and mechanical characterisation of monolithic silicon carbide ceramic consolidated by spark plasma sintering (SPS)
  12. Effect of Mn doping on the microstructure and dielectric properties of BaHf0.1Ti0.9O3 ceramics
  13. Nano hydroxyapatite–polysulfone coating on Ti-6Al-4V substrate by electrospinning
  14. Photocatalytic and self-cleaning properties of SiO2/TiO2/SiO2 nanostructured thin film
  15. Formation mechanism of manganese vanadate microtubes and their electrochemical sensing properties
  16. Modification of the luminescent properties of ZnS nanoparticles by the adsorbed species
  17. DGM News
  18. DGM News
https://doi.org/10.3139/146.110973
Schlagwörter für diesen Artikel
Hot rolling; Nb-microalloyed steel sheets; Formability; Taguchi grey relational analysis; Signal to noise ratio

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Critical sizes for coherent to semicoherent transition in precipitates
  5. Thixoformability evaluation of AA2011 and AA2014 alloys
  6. Joint strength of friction stir welded AISI 304 austenitic stainless steels
  7. Optimization of process parameters in explosive cladding of titanium/stainless steel 304L plates
  8. Optimization of the hot rolling parameters for evaluation of the formability of Nb-microalloyed steel sheet by using the Taguchi method
  9. XPS measurements of LDX 2101 duplex steel surface after magnetoelectropolishing
  10. Phase equilibria of the Al-Cr-Pr ternary system at 773 K
  11. Processing and mechanical characterisation of monolithic silicon carbide ceramic consolidated by spark plasma sintering (SPS)
  12. Effect of Mn doping on the microstructure and dielectric properties of BaHf0.1Ti0.9O3 ceramics
  13. Nano hydroxyapatite–polysulfone coating on Ti-6Al-4V substrate by electrospinning
  14. Photocatalytic and self-cleaning properties of SiO2/TiO2/SiO2 nanostructured thin film
  15. Formation mechanism of manganese vanadate microtubes and their electrochemical sensing properties
  16. Modification of the luminescent properties of ZnS nanoparticles by the adsorbed species
  17. DGM News
  18. DGM News
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