Effect of Boron Addition on the Dynamic Strain Aging Behavior of a Medium Carbon Steel Wire Rod

Cao, Bei; Jonas, John J.; Hastings, Patrick; Nickoletopoulos, Nicholas

doi:10.4028/www.scientific.net/msf.284-286.543

Cited by 5 publications

(1 citation statement)

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“…For the rest of the selected conditions, the tensile strength decreases monotonously with the temperature of the tensile test in the 293 K to 623 K (20°C to 350°C) range. This is in line with the behavior observed for different steels grades, [39][40][41] particularly when the addition of strong nitride forming elements like B [39] or V [40] removes nitrogen from the solid solution. Transmission electron microscopy has revealed Nb(C,N) interphase precipitates and AlN particles at dislocations in steel A processed according to the S1 sequence and coiled at 1023 K (750°C).…”

Section: Ys/tssupporting

confidence: 69%

Precipitation of Nb in Ferrite After Austenite Conditioning. Part II: Strengthening Contribution in High-Strength Low-Alloy (HSLA) Steels

Altuna

Iza-Mendia

Gutiérrez

2012

Metall Mater Trans A

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. ALTUNA, AMAIA IZA-MENDIA, and I. GUTIÉ RREZ Often, Nb contributes to the strength of a microalloyed steel beyond the expected level because of the grain size strengthening resulting from thermomechanical processing. Two different mechanisms are behind this phenomenon, and both of them have to do with the amount of Nb remaining in solution after hot rolling. The first of them is the increase of the hardenability of the steel as a result of Nb, and the second one is the fine precipitation of NbC in ferrite. Three Nb microalloyed steels were thermomechanically processed in the laboratory and coiled at different temperatures to investigate the effect of Nb content on the tensile properties. The extra strength was linearly related to the Nb remaining in solution after the hot working. The maximum contribution from Nb was reached for a coiling temperature of 873 K (600°C).

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