Hot ductility of medium carbon steel with vanadium

Lee, Chang‐Hoon; Park, Jun-Young; Chung, Jihoon; Park, Dae-Bum; Jang, Jin-Young; Huh, Sungyul; Kim, Seong-Ju; Moon, Joonoh; Lee, Tae‐Ho

doi:10.1016/j.msea.2015.11.006

Cited by 15 publications

(2 citation statements)

References 13 publications

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“…This is an issue for hot ductility because nitride precipitates act as nucleation sites for phase transformation and may encourage phase transformation at higher temperatures, facilitating ferrite film formation across a wider range of temperatures and lowering ductility as a result. 28) Grade 1 exhibited relatively low ductility across all temperatures, but specifically between 750-900°C, consistent with precipitation effects from increased V and N content. The low ductility values across most temperatures in this grade indicate significant precipitation or other microstructural features that substantially limit ductility.…”

Section: Ductilitymentioning

confidence: 57%

Quantitative SAXS Analysis of Precipitate Characteristics Limiting Hot Ductility in HSLA Steels Containing V, Nb & NbTi

Stubbers,

Balk

2023

ISIJ Int.

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Section: Ductilitymentioning

confidence: 57%

Quantitative SAXS Analysis of Precipitate Characteristics Limiting Hot Ductility in HSLA Steels Containing V, Nb & NbTi

Stubbers,

Balk

2023

ISIJ Int.

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“…Similarly, the hot ductility behavior of four plain carbon steels containing different V contents has been investigated by Mohamed [5]; this revealed that raising the V content from 0.009 to 0.1% was found to deteriorate the ductility because the ductility trough became wider and deeper as the V content increased due to the increased amount of VN precipitate in the steel. In addition, Lee et al [6] studied the hot ductility of a medium-carbon steel that contained V and demonstrated that V (C, N) particles precipitated at the austenite grain boundary and deteriorated the hot ductility when in a temperature range of 800~950 • C. Research on Ti-and V-bearing microalloyed steels by Sun et al [7] also demonstrated that the precipitate, especially with the size of 10~30 nm, resulted in a sharp decrease in hot ductility. However, Salas-Reyes [8] reported that the reduction in area (RA) of the V-microalloyed TWIP steel showed a significant improvement (800~900 • C) due to the fine VC particles, which promotes dynamic recrystallization.…”

Section: Introductionmentioning

confidence: 99%

Effect of Vanadium and Strain Rate on Hot Ductility of Low-Carbon Microalloyed Steels

Song

Tian

Xiao³

et al. 2021

Metals

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Hot tensile tests were conducted in this study to investigate the effect of strain rate (10−3 and 10 s−1) and vanadium content (0.029 and 0.047 wt.%) on the hot ductility of low-carbon microalloyed steels. The results indicate that a hot ductility trough appears at a low strain rate (10−3 s−1) because of the sufficient time for ferrite transformation and the growth of second particles, but it disappears at a high strain rate (10 s−1). The hot ductility is improved with the increase in strain rate at 700 °C or higher temperatures. In addition, with the increase in vanadium content, the large amounts of precipitate and increased ferrite transformation result in poor hot ductility of steels fractured at a low temperature range (600~900 °C). However, when the steel is fractured at a high temperature range (1000~1200 °C), more vanadium in the solid solution in the austenite inhibits the growth of parental austenite grains and results in grain refinement strengthening, slightly improving the hot ductility.

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Effect of Reheating Temperatures on Hot Ductility and Precipitation Behavior of Low‐Carbon Steels

Sadeghi

Zargar

Lahino

et al. 2022

steel research int.

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The influence of reheating temperatures on hot ductility is investigated in two Ni‐, Mo‐, and Cu‐containing low‐carbon steels. The effects of solution treatment conditions at 1623, 1673 K, and remelting at 1803 K on the reduction in area (RA) are analyzed. The results show an RA trough in the range of 973–1173 K in all experimental conditions. At 973 K, which is close to the Ae3 temperature of both steel grades, ductility drop is caused by the formation of the thin ferrite film at the prior austenite grain boundary. Higher RA values are achieved after reheating to 1623 K, mainly due to smaller austenite grain size by the action of preformed precipitation throughout the matrix. In contrast, increased reheating temperatures result in relatively poor RA values because of the large austenite grain size due to the dissolution of preformed precipitate and reprecipitation at the grain boundaries during cooling. A comparison between two steel grades shows that better ductility at 973 K is achieved in low Ni‐containing steel due to the relatively thick ferrite film. The effects of alloy composition and preformed precipitate's existence on hot ductility are further discussed based on the matrix strengthening and reprecipitation behavior.

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Hot ductility of medium carbon steel with vanadium

Cited by 15 publications

References 13 publications

Quantitative SAXS Analysis of Precipitate Characteristics Limiting Hot Ductility in HSLA Steels Containing V, Nb & NbTi

Quantitative SAXS Analysis of Precipitate Characteristics Limiting Hot Ductility in HSLA Steels Containing V, Nb & NbTi

Effect of Vanadium and Strain Rate on Hot Ductility of Low-Carbon Microalloyed Steels

Effect of Reheating Temperatures on Hot Ductility and Precipitation Behavior of Low‐Carbon Steels

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