Paper Title:

Fibre Reinforced Refractory Castables :An Alternative Solution for SPF Die Manufacturing

Periodical Materials Science Forum (Volumes 551 - 552)
Main Theme Superplasticity in Advanced Materials - ICSAM 2006
Edited by K.F. Zhang
Pages 37-42
DOI 10.4028/www.scientific.net/MSF.551-552.37
Citation Gérard Bernhart et al., 2007, Materials Science Forum, 551-552, 37
Online since July 2007
Authors Gérard Bernhart, F. Nazaret, T. Cutard
Keywords Damage Behaviour, Digital Image Stereocorrelation, Fibre Reinforcement, Refractory Castables, SPF Die
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Today heat resistant cast steels are the nominal solution for Ti-SPF forming die manufacturing. Nevertheless, this materials present some drawbacks related to delivery time and cost. A fibre reinforced refractory castable (FRRC) is proposed as a new solution for prototype SPF die manufacturing. Due to the general brittleness of refractory castables, a short fibre reinforcement has been investigated in order to avoid catastrophic failure during the forming process. General macroscopic behavior of such materials is very complex and presents large evolutions with the testing temperature. The paper addresses the important benefits of the reinforcement for refractory castable in the case of loading on a complex structure. The capability of the material to support several cracks is shown in the case of a technological sample with a complex shape.

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