Among the various existing instability theories, a simple instability condition based on the Ziegler's continuum principles as applied to large plastic flow, is found to be more appropriate for delineating the regions of unstable metal flow during hot deformation. It can be used to any flow stress versus strain rate curve. This criterion has been validated using the flow stress data of AISI 304 stainless steel with microstructural observations. © 2004 Elsevier B.V. All rights reserved.

Bhagwati P. Kashyap

Department of Metallurgical & Materials Engineering

IIT Jodhpur

S.V.S. Narayana Murty

B. Nageswara Rao

&ldquo;IIT Jodhpur is committed to impart quality education to facilitate the creation of qualified, competent and responsible human resources to meet the emerging technological challenges of the world. It is working towards creating an equitable learning platform that is positive, accessible and effective in the face of the modern societal and scientific advancements.

Flexibility in curriculum, in all its academic programs, encompassing elements of teaching, research, creativity, innovation and entrepreneurship is the most unique feature of IIT Jodhpur. The Department of Science and Technology (DST), under the National Mission on Cyber Physical Systems, has identified IIT Jodhpur as a Technology &amp; Innovation Hub in the area of Augmented Reality and Virtual Reality. The institute has also been nominated as the coordinator for the Jodhpur City and Knowledge Cluster by the Office of Principal Scientific Adviser, Government of India.

The sprawling 852-acre IIT Jodhpur campus is a majestic tribute to the deep-rooted diverse cultural heritage of the region. The campus is an architectural masterpiece, which is slated to become an international exemplar of sustainability with net-zero energy, and advanced water and waste management strategies.&rdquo;

Journal	Journal of Materials Processing Technology
ISSN	09240136