Effect of Coiling Temperature on Microstructure and Mechanical Properties of a Nb-V Microalloyed Steel

M. Olasolo; Pello Uranga; J.M. Rodriguez-Ibabe; Beatriz López

doi:10.4028/www.scientific.net/MSF.638-642.3350

Paper Titles

Calculation of Stress-Strain Curve of Two-Phase Microstructure on the Basis of the Extended Secant Method
p.3325

Modeling of Phase Transformation and Carbon Behaviors after Holding at γ/α Region and Controlled Cooling in Low Carbon Steels
p.3331

The Effect of Cooling Rate on the Damage Micromechanisms of DP Steels
p.3337

A View on the Strategy in the Processing of Hot Rolled Dual Phase Steels
p.3343

Effect of Coiling Temperature on Microstructure and Mechanical Properties of a Nb-V Microalloyed Steel
p.3350

A Study of the Carbides in High-Speed Steel Rolls
p.3356

Ductility of Microalloyed Steels during Hot Deformation
p.3362

Microstructure and Mechanical Properties of Low Carbon Al-Killed Steels after Ultra-Rapid Annealing Cycles
p.3368

Effect of Retained Austenite Stability on Mechanical Properties of 590MPa Grade TRIP Sheet Steels
p.3374

HomeMaterials Science ForumMaterials Science Forum Vols. 638-642Effect of Coiling Temperature on Microstructure...

Effect of Coiling Temperature on Microstructure and Mechanical Properties of a Nb-V Microalloyed Steel

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 1250º for 5-10 min, then deformed at 1150°C, =0.3, and subsequently at 900°C, =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.

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Materials Science Forum (Volumes 638-642)

Pages:

3350-3355

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.638-642.3350

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Online since:

January 2010

Authors:

M. Olasolo, Pello Uranga, J.M. Rodriguez-Ibabe, Beatriz López

Keywords:

Coiling, Dilatometer, Mechanical Property, Microalloyed, Torsion

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