The effect of strain rate sensitivity ev
The effect of strain rate sensitivity evolution on deformation stability during superplastic forming
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M.A. Nazzal; M.K. Khraisheh; F.K. Abu-Farha
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Article
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2007
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Elsevier Science
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English
⚖ 680 KB
The most important characteristic of superplastic materials is the high sensitivity of flow stress to deformation rate. In general, a constant strain rate sensitivity index value is usually used for calibrating models describing superplastic deformation. However, experimental results indicate that t