Interaction Between Recovery, Recrystallization, and NbC Strain-Induced Precipitation in High-Mn Steels

Llanos, Laura; Pereda, Beatriz; López, Beatriz

doi:10.1007/s11661-015-3066-2

Cited by 29 publications

(23 citation statements)

References 47 publications

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“…By increasing deformation from 6% to 10%, the fine Laves phase precipitates are also observed to be formed along the subgrain boundaries, as shown in Figures (D) and (F). This observation of strain‐induced precipitation on dislocation and subgrain structure was reported in Ti‐microalloyed steel (Nagarajan et al ., ; Wang et al ., ), high Mn steel (Llanos et al ., ) and Fe‐30Ni steel (Rainforth et al ., ; Poddar et al ., ). This phenomenon is called strain‐induced precipitations, which can be explained by an increase in nucleation sites during deformation.…”

Section: Resultsmentioning

confidence: 98%

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Effect of prior deformation on microstructural development and Laves phase precipitation in high‐chromium stainless steel

Hsiao

Chen

Kuo

et al. 2017

Journal of Microscopy

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This study investigated the influence of deformation on precipitation behaviour and microstructure change during annealing. Here, the prior deformation of high-chromium stainless steel was tensile deformation of 3%, 6% and 10%, and the specimens were then annealed at 700˚C for 10 h. The specimens were subsequently analyzed using backscattered electron image and electron backscattering diffraction measurements with SEM. Compared with the deformation microstructure, the grains revealed no preferred orientation. The precipitates of TiN and NbC were formed homogenously in the grain interior and at grain boundaries after annealing. Fine Laves phase precipitates were observed in grains and along subgrain boundaries as the deformation increased. Furthermore, the volume fraction of Laves phase increased, but the average particle diameter of precipitate was reduced as the deformation increased.

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Section: Resultsmentioning

confidence: 98%

“…Llanos et al . () argued that NbC strain‐induced precipitates are formed on the subgrain boundaries or at the dislocation within the subgrains.…”

Section: Introductionmentioning

confidence: 99%

Effect of prior deformation on microstructural development and Laves phase precipitation in high‐chromium stainless steel

Hsiao

Chen

Kuo

et al. 2017

Journal of Microscopy

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“…There are extensive reports on strain-induced precipitation in steels2930. Llanos et al 29. found that strain-induced precipitation can occur at temperature lower than 1273 K for Nb steel.…”

Section: Discussionmentioning

confidence: 99%

Superstrength of nanograined steel with nanoscale intermetallic precipitates transformed from shock-compressed martensitic steel

Yan

Lü

et al. 2016

Sci Rep

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An increasing number of industrial applications need superstrength steels. It is known that refined grains and nanoscale precipitates can increase strength. The hardest martensitic steel reported to date is C0.8 steel, whose nanohardness can reach 11.9 GPa through incremental interstitial solid solution strengthening. Here we report a nanograined (NG) steel dispersed with nanoscale precipitates which has an extraordinarily high hardness of 19.1 GPa. The NG steel (shock-compressed Armox 500T steel) was obtained under these conditions: high strain rate of 1.2 μs−1, high temperature rise rate of 600 Kμs−1 and high pressure of 17 GPa. The mean grain size achieved was 39 nm and reinforcing precipitates were indexed in the NG steel. The strength of the NG steel is expected to be ~3950 MPa. The discovery of the NG steel offers a general pathway for designing new advanced steel materials with exceptional hardness and excellent strength.

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“…However, it has been shown that TWIP alloys have naturally low yield strength (YS) [2]. Accordingly, there is a clear benefit in increasing the yield strength through Nb, Ti, or V microalloying elements, operation that can be an ideal hardening mechanism to improve strength [3]. These microalloying elements can precipitate during the different stages of the steel production.…”

Section: Introductionmentioning

confidence: 99%

Influence of Nb Microaddition on Microstructure and Texture Evolution in a Fe-21Mn-1.3Al-1.5Si-0.5C TWIP Steel under Uniaxial Hot-Tensile Conditions

2017

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Interaction Between Recovery, Recrystallization, and NbC Strain-Induced Precipitation in High-Mn Steels

Cited by 29 publications

References 47 publications

Effect of prior deformation on microstructural development and Laves phase precipitation in high‐chromium stainless steel

Effect of prior deformation on microstructural development and Laves phase precipitation in high‐chromium stainless steel

Superstrength of nanograined steel with nanoscale intermetallic precipitates transformed from shock-compressed martensitic steel

Influence of Nb Microaddition on Microstructure and Texture Evolution in a Fe-21Mn-1.3Al-1.5Si-0.5C TWIP Steel under Uniaxial Hot-Tensile Conditions

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