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A comparison of microtensile and microcompression methods for studying plastic properties of nanocrystalline electrodeposited nickel at different length scales

Published online by Cambridge University Press:  31 January 2011

L. Philippe ,
P. Schwaller ,
G. Bürki  and
J. Michler
L. Philippe*
Affiliation:
EMPA, Swiss Federal Laboratories for Materials Testing and Research, CH-3602 Thun, Switzerland
P. Schwaller
Affiliation:
EMPA, Swiss Federal Laboratories for Materials Testing and Research, CH-3602 Thun, Switzerland
G. Bürki
Affiliation:
EMPA, Swiss Federal Laboratories for Materials Testing and Research, CH-3602 Thun, Switzerland
J. Michler
Affiliation:
EMPA, Swiss Federal Laboratories for Materials Testing and Research, CH-3602 Thun, Switzerland
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

A comparison of microcompression and microtensile methods to study mechanical properties of electrodeposited nanocrystalline (nc) nickel has been performed. Microtensile tests that probe a volume of more than 2 × 106 μm3 show reasonable agreement with results from microcompression tests that probe much smaller volumes down to a few μm3. Differences between the two uniaxial techniques are discussed in terms of measurements errors, probed volume and surface effects, strain rate, and influence of stress state. Uniaxial solicitation in compression mode revealed several advantages for studying stress–strain properties.

Keywords

Electrochemical synthesisMetalNanostructure
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 5 , May 2008 , pp. 1383 - 1388
Copyright
Copyright © Materials Research Society 2008

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References

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