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Single-Line Profile Analysis of Superplastically Deformed Aluminium Alloys

Published online by Cambridge University Press:  06 March 2019

A. W. Bowen
A. W. Bowen*
Affiliation:
Materials and Structures Department Royal Aircraft Establishment Farnborough, Hants GU14 6TD, UK
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Superplastic deformation involves the controlled processing of materials in order to produce extensive deformation, the longest recorded elongation being nearly 5000%. Components of very complex shape can be formed in this way, thus offering substantial savings over the use of conventional manufacturing routes. Typically, these savings can be 50% in cost (through reduced man-hours required for component manufacture, from improved structural efficiency and from reduced material costs) and 25% in weight (through more efficient use of materials and the reduced requirement for joints and fasteners).

The success of the superplastic process will depend, in large part, on achieving an adequate balance between the deformation input and the relief of work hardening by thermally activated relaxation processes. An attempt has therefore been made to establish whether the residual strain in superplastically deformed materials is related to deformation, parameters, and if so, to interpret this strain data in terms of the mechanisms of superplasticity.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 29: Thirty-Fourth Annual Conference on Applications of X-ray Analysis, August 5-9, 1985 , 1985 , pp. 271 - 280
Copyright
Copyright © International Centre for Diffraction Data 1985

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