Fiber reinforced refractory castables for SPF toolings

Fiber reinforced refractory castable (FRRC) is an emerging material solution to manufacture SPF tools for forming titanium alloy sheets. Indeed, FRRC are able to conserve good mechanical properties up to 900 °C. Fiber reinforcement allows to improve mechanical properties and to avoid a catastrophic...

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Bibliographic Details
Published in:Materialwissenschaft und Werkstofftechnik 2008-04, Vol.39 (4-5), p.317-321
Main Authors: Bernhart, G., Nazaret, F., Cutard, T.
Format: Article
Language:English
Subjects:
damage model
Engineering Sciences
fiber
Refractory castable
superplastic forming
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Summary:Fiber reinforced refractory castable (FRRC) is an emerging material solution to manufacture SPF tools for forming titanium alloy sheets. Indeed, FRRC are able to conserve good mechanical properties up to 900 °C. Fiber reinforcement allows to improve mechanical properties and to avoid a catastrophic failure. Moreover, constitutive laws can be considered to reproduce the FRRC’s mechanical behaviour when using FEM codes. As a consequence, it is now possible to proceed to a numerical design of SPF tools that are based on FRRC. Following this route, large SPF tools have been designed, manufactured and tested under industrial conditions. Successful results have been obtained in the field of forming TA6V sheets.
ISSN:0933-5137
1521-4052
DOI:10.1002/mawe.200800297