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Reversible Transformation Plasticity in Uniaxial Tensioncompression Cycling of Mg-PSZ

Published online by Cambridge University Press:  25 February 2011

K. J. Bowman ,
P. E. Reyes-Morel  and
I-W. Chen
K. J. Bowman
Affiliation:
The University of Michigan, Ann Arbor, Michigan 48109–2136
P. E. Reyes-Morel
Affiliation:
The University of Michigan, Ann Arbor, Michigan 48109–2136
I-W. Chen
Affiliation:
The University of Michigan, Ann Arbor, Michigan 48109–2136
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Abstract

Previously, the pressure, temperature and strain rate sensitivities of transformation plasticity have been investigated for monotonic loading of Mg- PSZ. Research in this area has been extended to fully reversed cyclic loading of the type used in plastic strain control fatigue. Cyclic deformation experiments were performed to permit investigation of constitutive behavior under stable deformation conditions at microstrain levels. It was found that cyclic microstrains over a range of temperatures and strain rates were associated with reversible transformation plasticity in the strongly thermally-activated regime. These results are compared to the constitutive relations of transformation plasticity which have been previously developed to explain macrostrain observations.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 78: Symposium E – Advances in Structural Ceramics , 1986 , 51
Copyright
Copyright © Materials Research Society 1987

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References

REFERENCES

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