:: Advanced Composites Letters on-line ABSTRACTS ::

Volume 9, Issue 2, 2000
Processing Map for Hot Working of Powder Metallurgy 2124 Al – 20 Vol% SiCp Metal Metrix Composite

S.V.S.Narayana Murty¹ , B.Nageswara Rao² and B.P. Kashyap³

¹Scientist/Engineer, Materials and Metallurgy Group, Vikram Sarabahai Space Centre, Trivandrum-695022, India

²Scientist/Engineer, Structural Engineering Group, Vikram Sarabhai Space Centre, Trivandrum-695022, India

³Professor, Department of MetallurgicalEngineering and Materials Science, Indian Institute of Technology, Bombay, Mumbai-400076, India

(Received 10/99; accepted 2/00)

ABSTRACT

A simple instability condition based on the Ziegler’s instability criterion is found to be more appropriate in delineating the regimes of flow instabilities in the processing maps of 2124 Al-20 Vol% SiCp metal matrix composite. Applicability of the criterion is demonstrated using the reported microstructural observations in open literature.

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