Characterization of novel W alloys produced by HIP

W and W alloys containing 0.5 wt% Y 2O 3, x wt% Ti and ( x wt% Ti + 0.5 wt% Y 2O 3) 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 th...

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Published inJournal of nuclear materials Vol. 386; pp. 613 - 617
Main Authors Monge, M.A., Auger, M.A., Leguey, T., Ortega, Y., Bolzoni, L., Gordo, E., Pareja, R.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 30.04.2009
Elsevier
Subjects
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Installations for energy generation and conversion: thermal and electrical energy
Nuclear fuels
81.20.Ev
81.40.Vw
Tungsten
Hot isostatic pressing
Titanium
Microstructure
Microhardness
Pressure
Nuclear reactor
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Summary:W and W alloys containing 0.5 wt% Y 2O 3, x wt% Ti and ( x wt% Ti + 0.5 wt% Y 2O 3) 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.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2008.12.217