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Room temperature creep of fine-grained pure Mg: A direct comparison between nanoindentation and uniaxial tension

Published online by Cambridge University Press:  31 January 2011

C.L. Wang ,
T. Mukai  and
T.G. Nieh
C.L. Wang
Affiliation:
Department of Materials Science and Engineering, The University of Tennessee, Knoxville, Tennessee 37996
T. Mukai
Affiliation:
Structural Metal Center, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
T.G. Nieh*
Affiliation:
Department of Materials Science and Engineering, The University of Tennessee, Knoxville, Tennessee 37996
*
a) Address all correspondence to this author. e-mail: tnieh@utk.edu
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Abstract

Nanoindentation creep and uniaxial tension were conducted on pure Mg with a grain size of about 2 μm at room temperature and the data were directly compared. Despite the differences in stress state, the two sets of data were found to match remarkably well with each other. An apparent stress exponent value of 4 was obtained and the deformation mechanism was discussed in light of dislocation slips and twinning in anisotropic Mg.

Keywords

Nanoindentation
Type
Rapid Communications
Information
Journal of Materials Research , Volume 24 , Issue 5 , May 2009 , pp. 1615 - 1618
Copyright
Copyright © Materials Research Society 2009

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References

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