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Strength, grain refinement and solute nanostructures of an Al-Mg-Si alloy (AA6060) processed by high-pressure torsion. / Sha, G.; Tugcu, K.; Liao, X.Z.; Trimby, P.W.; Murashkin, M.Y.; Valiev, R.Z.; Ringer, S.P.

In: Acta Materialia, Vol. 63, 2014, p. 169-179.

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Sha, G. ; Tugcu, K. ; Liao, X.Z. ; Trimby, P.W. ; Murashkin, M.Y. ; Valiev, R.Z. ; Ringer, S.P. / Strength, grain refinement and solute nanostructures of an Al-Mg-Si alloy (AA6060) processed by high-pressure torsion. In: Acta Materialia. 2014 ; Vol. 63. pp. 169-179.

BibTeX

@article{2e93c40720b649289159eee3b9f2eea1,
title = "Strength, grain refinement and solute nanostructures of an Al-Mg-Si alloy (AA6060) processed by high-pressure torsion",
abstract = "The effects of high-pressure torsion (HPT) processing on an Al-Mg-Si alloy (AA6060) have been investigated comprehensively. We show that the processing temperature has complex effects on the strength, grain refinement and solute nanostructures of the alloy. Ten-revolution HPT processing at room temperature produced the highest yield strength of 475 MPa, which is similar to a high-strength Al alloy. However, processing at 100 degrees C produced the finest grains due to the strong solute segregation to grain boundaries and the formation of high-density precipitates that pin grain boundaries. Processing at 180 degrees C led to significant decomposition of the alloy and the formation of coarse precipitates. This research demonstrates that solute nanostructures provide key information for unravelling the origins of HPT-induced strengthening and grain refinement, and reveals the important opportunities for {"}engineering{"} solute nanostructures to enhance grain refinement in HPT processing. (C) 2013 Acta Materialia In",
author = "G. Sha and K. Tugcu and X.Z. Liao and P.W. Trimby and M.Y. Murashkin and R.Z. Valiev and S.P. Ringer",
year = "2014",
doi = "10.1016/j.actamat.2013.10.022",
language = "English",
volume = "63",
pages = "169--179",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Strength, grain refinement and solute nanostructures of an Al-Mg-Si alloy (AA6060) processed by high-pressure torsion

AU - Sha, G.

AU - Tugcu, K.

AU - Liao, X.Z.

AU - Trimby, P.W.

AU - Murashkin, M.Y.

AU - Valiev, R.Z.

AU - Ringer, S.P.

PY - 2014

Y1 - 2014

N2 - The effects of high-pressure torsion (HPT) processing on an Al-Mg-Si alloy (AA6060) have been investigated comprehensively. We show that the processing temperature has complex effects on the strength, grain refinement and solute nanostructures of the alloy. Ten-revolution HPT processing at room temperature produced the highest yield strength of 475 MPa, which is similar to a high-strength Al alloy. However, processing at 100 degrees C produced the finest grains due to the strong solute segregation to grain boundaries and the formation of high-density precipitates that pin grain boundaries. Processing at 180 degrees C led to significant decomposition of the alloy and the formation of coarse precipitates. This research demonstrates that solute nanostructures provide key information for unravelling the origins of HPT-induced strengthening and grain refinement, and reveals the important opportunities for "engineering" solute nanostructures to enhance grain refinement in HPT processing. (C) 2013 Acta Materialia In

AB - The effects of high-pressure torsion (HPT) processing on an Al-Mg-Si alloy (AA6060) have been investigated comprehensively. We show that the processing temperature has complex effects on the strength, grain refinement and solute nanostructures of the alloy. Ten-revolution HPT processing at room temperature produced the highest yield strength of 475 MPa, which is similar to a high-strength Al alloy. However, processing at 100 degrees C produced the finest grains due to the strong solute segregation to grain boundaries and the formation of high-density precipitates that pin grain boundaries. Processing at 180 degrees C led to significant decomposition of the alloy and the formation of coarse precipitates. This research demonstrates that solute nanostructures provide key information for unravelling the origins of HPT-induced strengthening and grain refinement, and reveals the important opportunities for "engineering" solute nanostructures to enhance grain refinement in HPT processing. (C) 2013 Acta Materialia In

U2 - 10.1016/j.actamat.2013.10.022

DO - 10.1016/j.actamat.2013.10.022

M3 - Article

VL - 63

SP - 169

EP - 179

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

ER -

ID: 7038403