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2593551 
Journal Article 
Seventy-five years of superplasticity: historic developments and new opportunities 
Langdon, TG 
2009 
Yes 
Journal of Materials Science
ISSN: 0022-2461
EISSN: 1573-4803 
44 
22 
5998-6010 
WOS:000270179200005 
On this seventy-fifth anniversary of the first scientific report of true superplastic flow, it is appropriate both to look back and examine the major developments that established the present understanding of superplasticity and to look to the future to the new opportunities that are made possible by new processing techniques, based on the application of severe plastic deformation, that permit the production of fully dense bulk materials with submicrometer or nanometer grain sizes. This review proposes a minor modification to the present definition of superplasticity, it provides an overview of the current understanding of the flow of superplastic metals and ceramics and then it examines, and gives examples of, the new possibilities that are now available for achieving exceptional superplastic behavior.