La tensión umbral para la fluencia, en un material de base magnesio procesado por pulvimetalurgia

J. A. del Valle; O. A. Ruano

doi:10.3989/revmetalmadrid.08XIIPMS

Threshold stress for creep in a magnesium based material processed by powder metallurgy

Authors

J. A. del Valle Departamento de Metalurgia Física, CENIM, CSICDepartamento de Metalurgia Física, CENIM, CSIC
O. A. Ruano Departamento de Metalurgia Física, CENIM, CSIC

DOI:

https://doi.org/10.3989/revmetalmadrid.08XIIPMS

Keywords:

Creep, Threshold stress, Composite, Magnesium, Powder metallurgy

Abstract

The presence of a threshold stress in the fine grained magnesium alloy AZ31 containing different amounts of particles and processed by powder metallurgy methods has been investigated. Grain boundary sliding has been observed to be the controlling mechanism in a wide range of strain rates and temperatures. The drastic reduction in strain rate with a small decrease in stress suggests the presence of a threshold stress. This threshold stress is independent of temperature. This paper provides an analysis of the threshold stress and its dependence on the structural and mechanical parameters.

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References

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Published

2010-12-31

How to Cite

del Valle, J. A., & Ruano, O. A. (2010). Threshold stress for creep in a magnesium based material processed by powder metallurgy. Revista De Metalurgia, 46(Extra), 78–84. https://doi.org/10.3989/revmetalmadrid.08XIIPMS

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Issue

Vol. 46 No. Extra (2010)

Section

Articles

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