Microstructural and mechanical characteristics of W-2Ti and W-1TiC processed by Hot Isostatic Pressing

摘要

It has been demonstrated that mechanical alloying and subsequent consolidation by hot isostaticudpressing (HIP) is a successful route to produce dispersion strengthened W alloys with propertiesudsatisfying the design requirements of particular plasma facing components in the fusion reactor.udHowever, the presence of the alloying element as a phase filling large interstices between Wudparticles appears to reduce the mechanical properties of these alloys. In order to limit this phaseudseparation induced by the HIP treatment and the detrimental effects on the mechanicaludproperties, the enhancement of the mechanical alloying process, and the effect of a postconsolidationudheat treatment in an reducing atmosphere, have been investigated.