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Mechanical Properties of Nanocrystalline Ni in Relation to its Microstructure

Published online by Cambridge University Press:  14 March 2011

F. Dalla Torre
Affiliation:
Paul Scherrer Institut, SWITZERLAND
H. Van Swygenhoven
Affiliation:
Paul Scherrer Institut, SWITZERLAND
M. Victoria
Affiliation:
EPFL Lausanne, Dept. of Fusion Technology CRPP, SWITZERLAND
R. Schaeublin
Affiliation:
EPFL Lausanne, Dept. of Fusion Technology CRPP, SWITZERLAND
W. Wagner
Affiliation:
Paul Scherrer Institut, SWITZERLAND
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Abstract

Mechanical properties of nanocrystalline Ni made by Inert Gas Condensation and Electrodeposition are presented in relation to their microstructure. Significant plasticity is only observed at elevated temperatures for both types of nanocrystalline Ni. However, a higher temperature is needed in the Inert gas condensated material. Careful analysis of the microstructure by means of X-ray diffraction and conventional electron microscopy reveal initial differences in as-prepared samples. The change in microstructure during deformation at elevated temperatures and during heat treatment without external load is investigated and information about the deformation mechanisms is reported.

Type
Research Article
Copyright
Copyright © Materials Research Society 2001

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References

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