Creep of nanocrystalline nickel: A direct comparison between uniaxial and nanoindentation creep

C. L. Wang; Y. H. Lai; J. C. Huang; T. G. Nieh

doi:10.1016/j.scriptamat.2009.10.021

Creep of nanocrystalline nickel: A direct comparison between uniaxial and nanoindentation creep

C. L. Wang, Y. H. Lai, J. C. Huang, T. G. Nieh^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

120 Citations (Scopus)

Abstract

Uniaxial and nanoindentation creeps were conducted on nanocrystalline nickel with an as-deposited grain size of 14 nm at 398 K and the results were directly compared. The stress exponent under the two test conditions was found to be almost the same, indicating a similar creep mechanism. However, the strain rate measured by nanoindentation creep was about 100 times faster than that by uniaxial creep. The rate difference was discussed in terms of stress states and the appropriate selection of the Tabor factor.

Original language	English
Pages (from-to)	175-178
Journal	Scripta Materialia
Volume	62
Issue number	4
Online published	20 Oct 2009
DOIs	https://doi.org/10.1016/j.scriptamat.2009.10.021
Publication status	Published - Feb 2010
Externally published	Yes

Research Keywords

Compression test
Creep
Nanoindentation

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abstract = "Uniaxial and nanoindentation creeps were conducted on nanocrystalline nickel with an as-deposited grain size of 14 nm at 398 K and the results were directly compared. The stress exponent under the two test conditions was found to be almost the same, indicating a similar creep mechanism. However, the strain rate measured by nanoindentation creep was about 100 times faster than that by uniaxial creep. The rate difference was discussed in terms of stress states and the appropriate selection of the Tabor factor. ",

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T1 - Creep of nanocrystalline nickel

T2 - A direct comparison between uniaxial and nanoindentation creep

AU - Wang, C. L.

AU - Lai, Y. H.

AU - Huang, J. C.

AU - Nieh, T. G.

PY - 2010/2

Y1 - 2010/2

N2 - Uniaxial and nanoindentation creeps were conducted on nanocrystalline nickel with an as-deposited grain size of 14 nm at 398 K and the results were directly compared. The stress exponent under the two test conditions was found to be almost the same, indicating a similar creep mechanism. However, the strain rate measured by nanoindentation creep was about 100 times faster than that by uniaxial creep. The rate difference was discussed in terms of stress states and the appropriate selection of the Tabor factor.

AB - Uniaxial and nanoindentation creeps were conducted on nanocrystalline nickel with an as-deposited grain size of 14 nm at 398 K and the results were directly compared. The stress exponent under the two test conditions was found to be almost the same, indicating a similar creep mechanism. However, the strain rate measured by nanoindentation creep was about 100 times faster than that by uniaxial creep. The rate difference was discussed in terms of stress states and the appropriate selection of the Tabor factor.

KW - Compression test

KW - Creep

KW - Nanoindentation

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-70450103695&origin=recordpage

U2 - 10.1016/j.scriptamat.2009.10.021

DO - 10.1016/j.scriptamat.2009.10.021

M3 - RGC 21 - Publication in refereed journal

SN - 1359-6462

VL - 62

SP - 175

EP - 178

JO - Scripta Materialia

JF - Scripta Materialia

IS - 4

ER -

Creep of nanocrystalline nickel: A direct comparison between uniaxial and nanoindentation creep

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Research Keywords

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