Characterization of novel W alloys produced by HIP

Proceedings of: The Thirteenth International Conference on Fusion Reactor, Nice (France), 10–14 December 2007.W and W alloys containing 0.5 wt% Y₂O₃, x wt% Ti and (x wt% Ti + 0.5 wt% Y₂O₃) have been prepared, x 2 or 4. Elemental powders were blended or ball milled, canned, degassed and finally consolidated by a two stage HIP process under a pressure of 195 MPa. It is found that Ti addition favours the densification attaining a fully dense material. XRD, SEM and EDX analyses of the material with Ti addition reveal the formation of a microstructure consisting of tungsten particles embedded in a W Ti matrix. The microhardness of these materials increased noticeably with the titanium content.Dirección General de Investigación (Ministry of Education of Spain, Contract MAT2004 1819), the Dirección General de Universidades (Comunidad de Madrid) through the program of ESTRUMAT CM (Grant S 0505/MAT/0077) and EURATOM/CIEMAT Association through Contract 07/006.Publicad