Effect of coiling temperature on microstructure and mechanical properties of a Nb-V microalloyed steel

M. Olasolo, P. Uranga, J. M. Rodriguez-Ibabe, B. López

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

3 Citations (Scopus)

Abstract

The effect of coiling temperature on the microstructure and mechanical properties of a Nb-V microalloyed steel was investigated. Controlled rolling followed by accelerated cooling and coiling was simulated by means of both, uniaxial compression, using a quenching and deformation dilatometer, and torsion. Specimens were reheated at 1250° for 5-10 min, then deformed at 1150°C, ε=0.3, and subsequently at 900°C, ε=0.4, followed by rapid cooling to a temperature between 450 and 700°C where coiling was simulated by holding the specimen for one hour at the selected temperature followed by a slow cooling to room temperature. Mechanical characterization was performed by means of hardness measurements and tensile tests, using tubular specimens machined from the torsion samples. It was found that decreasing the coiling temperature the ferrite-pearlite microstructure changed to ferrite-bainite, with a hardness peak reached for coiling at 600°C-650°C.

Original languageEnglish
Title of host publicationTHERMEC 2009
EditorsT. Chandra, N. Wanderka, W. Reimers, M. Ionescu
Pages3350-3355
Number of pages6
DOIs
Publication statusPublished - 9 Feb 2010
Event6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009 - Berlin, Germany
Duration: 25 Aug 200929 Aug 2009

Publication series

NameMaterials Science Forum
Volume638-642
ISSN (Print)0255-5476

Conference

Conference6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009
CountryGermany
CityBerlin
Period25/08/0929/08/09

Keywords

  • coiling
  • dilatometer
  • mechanical properties
  • microalloying
  • torsion

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  • Cite this

    Olasolo, M., Uranga, P., Rodriguez-Ibabe, J. M., & López, B. (2010). Effect of coiling temperature on microstructure and mechanical properties of a Nb-V microalloyed steel. In T. Chandra, N. Wanderka, W. Reimers, & M. Ionescu (Eds.), THERMEC 2009 (pp. 3350-3355). (Materials Science Forum; Vol. 638-642). https://doi.org/10.4028/www.scientific.net/MSF.638-642.3350