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The Effect of Constraints on Plastic Deformation

Published online by Cambridge University Press:  26 February 2011

Vaclav Paidar
Vaclav Paidar*
Affiliation:
[email protected], Institute of Physics, Metals, Na Slovance 2, Prague, 182 21, Czech Republic
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Abstract

The effect of the deformation constraints is examined for the lamellar structure of TiAl where the unconstrained plastic deformation occurs parallel to the lamellae. The constraints generally redistribute the stresses in such a way that the resolved shear stresses are decreased on the most stressed systems and increased on other systems. This behaviour leads to the material strengthening and may enhance the ductility when more deformation modes are activated.

Keywords

grain boundariesdislocationsstrength
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 980: Symposium II – Advanced Intermetallic-Based Alloys , 2006 , 0980-II02-05
Copyright
Copyright © Materials Research Society 2007

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