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Title: Microstructural gradients in the superplastic forming of Ti-6Al-4V
Authors: S. Rhaipu
M. L.H. Wise
P. S. Bate
Mahidol University
University of Birmingham
University of Manchester
Keywords: Engineering;Materials Science;Physics and Astronomy
Issue Date: 1-Jan-2002
Citation: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. Vol.33, No.1 (2002), 93-100
Abstract: The effect of microstructural gradients, introduced by local induction heating, on the behavior of a Ti-6Al-4V sheet in superplastic forming has been investigated. Heat treatment led to a change in the morphology of the α phase present at the start of superplastic deformation, which caused an increase in initial flow stress. This has a significant effect on the strain distribution. Trials using two axially symmetric shapes showed that the effect of microstructural gradients can be adequately predicted-via numerical modeling-and controlled. The technique has the potential to control the thickness distribution in formed parts.
ISSN: 10735623
Appears in Collections:Scopus 2001-2005

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