Superpastic behavior was studied by mechanically working the cast material to varying degrees. The flow behavior was explored in the temperature range of 298 to 443 K and metallographic observations of longitudinal and transverse sections were made. Due to changes in microstructure and the nonunique stress-strain rate relation, the as-worked material is not suitable for assessing the mechanisms of superplastic flow based on steady state.

Bhagwati P. Kashyap

Department of Metallurgical & Materials Engineering

IIT Jodhpur

G.S. Murty

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Journal	Metallurgical transactions. A, Physical metallurgy and materials science
ISSN	03602133