Enhancement of strength and stability of nanostructured Ni by small amounts of solutes

H.W. Zhang; K. Lu; R. Pippan; Xiaoxu Huang; Niels Hansen

doi:10.1016/j.scriptamat.2011.06.003

Enhancement of strength and stability of nanostructured Ni by small amounts of solutes

H.W. Zhang, K. Lu, R. Pippan, Xiaoxu Huang, Niels Hansen

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Polycrystalline Ni with a purity of 99.7% (with 0.14% Ti) has been deformed by high-pressure torsion at room temperature to εvM=100. The presence of solute atoms markedly raises both the strength and the thermal stability, showing a flow stress of about 1700MPa and a recrystallization temperature of about 500°C. The effect of the solute on dislocation storage during deformation and on the mobility of dislocations and boundaries during annealing are discussed. The strengthening mechanisms and their superposition are also analyzed.

Original language	English
Journal	Scripta Materialia
Volume	65
Issue number	6
Pages (from-to)	481-484
ISSN	1359-6462
DOIs	https://doi.org/10.1016/j.scriptamat.2011.06.003
Publication status	Published - 2011

Keywords

Materials characterisation and modelling

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abstract = "Polycrystalline Ni with a purity of 99.7% (with 0.14% Ti) has been deformed by high-pressure torsion at room temperature to εvM=100. The presence of solute atoms markedly raises both the strength and the thermal stability, showing a flow stress of about 1700MPa and a recrystallization temperature of about 500°C. The effect of the solute on dislocation storage during deformation and on the mobility of dislocations and boundaries during annealing are discussed. The strengthening mechanisms and their superposition are also analyzed.",

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T1 - Enhancement of strength and stability of nanostructured Ni by small amounts of solutes

AU - Zhang, H.W.

AU - Lu, K.

AU - Pippan, R.

AU - Huang, Xiaoxu

AU - Hansen, Niels

PY - 2011

Y1 - 2011

N2 - Polycrystalline Ni with a purity of 99.7% (with 0.14% Ti) has been deformed by high-pressure torsion at room temperature to εvM=100. The presence of solute atoms markedly raises both the strength and the thermal stability, showing a flow stress of about 1700MPa and a recrystallization temperature of about 500°C. The effect of the solute on dislocation storage during deformation and on the mobility of dislocations and boundaries during annealing are discussed. The strengthening mechanisms and their superposition are also analyzed.

AB - Polycrystalline Ni with a purity of 99.7% (with 0.14% Ti) has been deformed by high-pressure torsion at room temperature to εvM=100. The presence of solute atoms markedly raises both the strength and the thermal stability, showing a flow stress of about 1700MPa and a recrystallization temperature of about 500°C. The effect of the solute on dislocation storage during deformation and on the mobility of dislocations and boundaries during annealing are discussed. The strengthening mechanisms and their superposition are also analyzed.

KW - Materials characterisation and modelling

KW - Materialekarakterisering og modellering

U2 - 10.1016/j.scriptamat.2011.06.003

DO - 10.1016/j.scriptamat.2011.06.003

M3 - Journal article

SN - 1359-6462

VL - 65

SP - 481

EP - 484

JO - Scripta Materialia

JF - Scripta Materialia

IS - 6

ER -

Enhancement of strength and stability of nanostructured Ni by small amounts of solutes

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