Standard

Dynamic balance between grain refinement and grain growth during high-pressure torsion of Cu powders. / Wen, Haiming; Islamgaliev, Rinat K.; Nesterov, Konstantin M.; Valiev, Ruslan Z.; Lavernia, Enrique J.

In: Philosophical Magazine Letters, Vol. 93, No. 8, 01.08.2013, p. 481-489.

Research output: Contribution to journal › Article › peer-review

Harvard

Wen, H, Islamgaliev, RK, Nesterov, KM, Valiev, RZ & Lavernia, EJ 2013, 'Dynamic balance between grain refinement and grain growth during high-pressure torsion of Cu powders', Philosophical Magazine Letters, vol. 93, no. 8, pp. 481-489. https://doi.org/10.1080/09500839.2013.805268

APA

Wen, H., Islamgaliev, R. K., Nesterov, K. M., Valiev, R. Z., & Lavernia, E. J. (2013). Dynamic balance between grain refinement and grain growth during high-pressure torsion of Cu powders. Philosophical Magazine Letters, 93(8), 481-489. https://doi.org/10.1080/09500839.2013.805268

Vancouver

Wen H, Islamgaliev RK, Nesterov KM, Valiev RZ, Lavernia EJ. Dynamic balance between grain refinement and grain growth during high-pressure torsion of Cu powders. Philosophical Magazine Letters. 2013 Aug 1;93(8):481-489. https://doi.org/10.1080/09500839.2013.805268

Author

Wen, Haiming ; Islamgaliev, Rinat K. ; Nesterov, Konstantin M. ; Valiev, Ruslan Z. ; Lavernia, Enrique J. / Dynamic balance between grain refinement and grain growth during high-pressure torsion of Cu powders. In: Philosophical Magazine Letters. 2013 ; Vol. 93, No. 8. pp. 481-489.

BibTeX

@article{a9e25e71883e4964a6992ec0c031193a,
title = "Dynamic balance between grain refinement and grain growth during high-pressure torsion of Cu powders",
abstract = "High-pressure torsion (HPT) was applied to unmilled coarse-grained (CG) Cu powders with low initial dislocation density and cryomilled nanocrystalline (nc) Cu powders with high initial dislocation density, with identical processing parameters. HPT of unmilled CG Cu powders resulted in exceptional grain refinement and increase in dislocation density, whereas significant grain growth and decrease in dislocation density occurred during HPT of cryomilled nc Cu powders. Equilibrium structures were achieved under both conditions, with very similar stable grain sizes and dislocation densities, suggesting dynamic balances between deformation-induced grain refinement and grain growth, and between deformation-induced dislocation accumulation and dislocation annihilation. The equilibrium structures are governed by these two dynamic balances.",
keywords = "deformation mechanism, dislocations, grain growth, grain refinement, high-pressure torsion, nanostructured materials",
author = "Haiming Wen and Islamgaliev, {Rinat K.} and Nesterov, {Konstantin M.} and Valiev, {Ruslan Z.} and Lavernia, {Enrique J.}",
year = "2013",
month = aug,
day = "1",
doi = "10.1080/09500839.2013.805268",
language = "English",
volume = "93",
pages = "481--489",
journal = "Philosophical Magazine Letters",
issn = "0950-0839",
publisher = "Taylor & Francis",
number = "8",

}

RIS

TY - JOUR

T1 - Dynamic balance between grain refinement and grain growth during high-pressure torsion of Cu powders

AU - Wen, Haiming

AU - Islamgaliev, Rinat K.

AU - Nesterov, Konstantin M.

AU - Valiev, Ruslan Z.

AU - Lavernia, Enrique J.

PY - 2013/8/1

Y1 - 2013/8/1

N2 - High-pressure torsion (HPT) was applied to unmilled coarse-grained (CG) Cu powders with low initial dislocation density and cryomilled nanocrystalline (nc) Cu powders with high initial dislocation density, with identical processing parameters. HPT of unmilled CG Cu powders resulted in exceptional grain refinement and increase in dislocation density, whereas significant grain growth and decrease in dislocation density occurred during HPT of cryomilled nc Cu powders. Equilibrium structures were achieved under both conditions, with very similar stable grain sizes and dislocation densities, suggesting dynamic balances between deformation-induced grain refinement and grain growth, and between deformation-induced dislocation accumulation and dislocation annihilation. The equilibrium structures are governed by these two dynamic balances.

AB - High-pressure torsion (HPT) was applied to unmilled coarse-grained (CG) Cu powders with low initial dislocation density and cryomilled nanocrystalline (nc) Cu powders with high initial dislocation density, with identical processing parameters. HPT of unmilled CG Cu powders resulted in exceptional grain refinement and increase in dislocation density, whereas significant grain growth and decrease in dislocation density occurred during HPT of cryomilled nc Cu powders. Equilibrium structures were achieved under both conditions, with very similar stable grain sizes and dislocation densities, suggesting dynamic balances between deformation-induced grain refinement and grain growth, and between deformation-induced dislocation accumulation and dislocation annihilation. The equilibrium structures are governed by these two dynamic balances.

KW - deformation mechanism

KW - dislocations

KW - grain growth

KW - grain refinement

KW - high-pressure torsion

KW - nanostructured materials

UR - http://www.scopus.com/inward/record.url?scp=84882455353&partnerID=8YFLogxK

U2 - 10.1080/09500839.2013.805268

DO - 10.1080/09500839.2013.805268

M3 - Article

AN - SCOPUS:84882455353

VL - 93

SP - 481

EP - 489

JO - Philosophical Magazine Letters

JF - Philosophical Magazine Letters

SN - 0950-0839

IS - 8

ER -

ID: 35165421