Publication: Microstructural gradients in the superplastic forming of Ti-6Al-4V
Issued Date
2002-01-01
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ISSN
10735623
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2-s2.0-0036129221
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Mahidol University
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SCOPUS
Bibliographic Citation
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. Vol.33, No.1 (2002), 93-100
Suggested Citation
S. Rhaipu, M. L.H. Wise, P. S. Bate Microstructural gradients in the superplastic forming of Ti-6Al-4V. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. Vol.33, No.1 (2002), 93-100. doi:10.1007/s11661-002-0008-6 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/20164
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Title
Microstructural gradients in the superplastic forming of Ti-6Al-4V
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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.